Pattern 1: Prefer specific input validation and early returns to guard against invalid, NaN/Infinity, null, or empty inputs before computation or member access.
Example code before:
function area(w, h) {
return w * h; // may be NaN/Infinity or throw later if inputs invalid
}
Example code after:
function area(w, h) {
if (typeof w !== 'number' || !isFinite(w) || w <= 0) return null;
if (typeof h !== 'number' || !isFinite(h) || h <= 0) return null;
return w * h;
}
Relevant past accepted suggestions:
Suggestion 1:
Add null guard before calls
Guard against a null _resourceServer after initialization before calling methods on it. Log an error and return early to avoid NullReferenceException if the server failed to initialize.
WelsonJS.Toolkit/WelsonJS.Launcher/MainForm.cs [178-186]
Program.InitializeResourceServer();
+
+if (Program._resourceServer == null)
+{
+ _logger.Error("Resource server failed to initialize.");
+ return false;
+}
if (!Program._resourceServer.IsRunning())
{
Program._resourceServer.Start(false);
startCodeEditorToolStripMenuItem.Text = "Open the code editor...";
}
return Program._resourceServer.IsRunning();
Suggestion 2:
Handle empty/invalid inputs safely
Guard against empty coords after validation; current code will use Math.min/max on empty arrays, yielding Infinity/-Infinity and NaN density. Return false if no valid cells remain. Also coerce minDensity to a number and clamp between 0 and 1 to avoid unexpected truthy strings.
function clusteredCellsDensity(numbers, size, minDensity) {
- if (!numbers || !numbers.length) return false;
- if (typeof size !== 'number' || size <= 0) size = 4; // default grid size = 4
- if (typeof minDensity === 'undefined') minDensity = 0.6;
+ if (!Array.isArray(numbers) || numbers.length === 0) return false;
+ if (typeof size !== 'number' || size <= 0) size = 4;
+ if (typeof minDensity !== 'number' || isNaN(minDensity)) minDensity = 0.6;
+ if (minDensity < 0) minDensity = 0;
+ if (minDensity > 1) minDensity = 1;
- var maxIndex = size * size; // because it's 1-based (1..size*size)
+ var maxIndex = size * size;
- // 1. Convert cell number → (x,y) coordinates with 1-based check
var coords = [];
for (var i = 0; i < numbers.length; i++) {
- var n = numbers[i];
- // must be within 1..maxIndex
- if (typeof n !== 'number' || n < 1 || n > maxIndex) {
- return false; // invalid index -> immediately return false
- }
- var idx = n - 1; // shift to 0-based
+ var n = numbers[i];
+ if (typeof n !== 'number' || !isFinite(n) || n % 1 !== 0 || n < 1 || n > maxIndex) {
+ return false;
+ }
+ var idx = n - 1;
coords.push({ x: idx % size, y: Math.floor(idx / size) });
}
+
+ if (coords.length === 0) return false;
var xs = coords.map(function (c) { return c.x; });
var ys = coords.map(function (c) { return c.y; });
- // 2. Compute bounding box of selected cells
var minX = Math.min.apply(Math, xs), maxX = Math.max.apply(Math, xs);
var minY = Math.min.apply(Math, ys), maxY = Math.max.apply(Math, ys);
- // 3. Compute area and density
- var w = maxX - minX + 1;
- var h = maxY - minY + 1;
+ var w = (maxX - minX + 1);
+ var h = (maxY - minY + 1);
var boxArea = w * h;
+ if (!isFinite(boxArea) || boxArea <= 0) return false;
var density = coords.length / boxArea;
return density >= minDensity;
}
Suggestion 3:
Validate tile position inputs
Add input validation to prevent NaN/Infinity when tiles is zero/negative or index is out of range. Clamp col/row to non-negative and return null for invalid arguments to avoid propagating bad coordinates.
-function estimateTileStartPosition(index, tiles, spreadSize, gap) {
+function estimateTileStartPosition(index, tiles, spreadSize, gap) {
+ if (typeof tiles !== 'number' || tiles <= 0) return null;
+ if (typeof spreadSize !== 'number' || !isFinite(spreadSize)) return null;
+ if (typeof gap !== 'number' || !isFinite(gap) || gap < 0) gap = 0;
+ if (typeof index !== 'number' || !isFinite(index) || index % 1 !== 0 || index < 1) return null;
+
+ var totalSlots = tiles * tiles;
+ if (index > totalSlots) return null;
+
var tileSize = (spreadSize - gap * (tiles - 1)) / tiles;
+ if (!isFinite(tileSize)) return null;
var i = index - 1;
var col = i % tiles;
var row = Math.floor(i / tiles);
-
- return {
- x: col * (tileSize + gap),
- y: row * (tileSize + gap)
+
+ return {
+ x: Math.max(0, col) * (tileSize + gap),
+ y: Math.max(0, row) * (tileSize + gap)
};
}
Suggestion 4:
Guard deserialization with null checks
Add a null check on the deserialization result before using it to avoid possible NullReferenceException. Also validate that the stream is not null before constructing the reader.
WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs [448-453]
using (var response = await _httpClient.GetStreamAsync(url))
-using (var reader = new StreamReader(response))
{
- var serializer = new XmlSerializer(typeof(BlobConfig));
- _blobConfig = (BlobConfig)serializer.Deserialize(reader);
+ if (response == null)
+ {
+ _logger?.Warn("Blob config response stream was null.");
+ return;
+ }
+ using (var reader = new StreamReader(response))
+ {
+ var serializer = new XmlSerializer(typeof(BlobConfig));
+ var deserialized = serializer.Deserialize(reader) as BlobConfig;
+ if (deserialized == null)
+ {
+ _logger?.Warn("Failed to deserialize BlobConfig (null result).");
+ return;
+ }
+ _blobConfig = deserialized;
+ }
}
Suggestion 5:
Fix null reference exception risk
The null check for schema should occur before accessing schema.PrimaryKey to prevent potential null reference exceptions. Move the null validation to the beginning of the constructor.
WelsonJS.Toolkit/WelsonJS.Esent/EsentDatabase.cs [35-41]
public EsentDatabase(Schema schema, string workingDirectory, ICompatibleLogger logger = null)
{
+ if (schema == null)
+ throw new ArgumentNullException(nameof(schema));
+
_logger = logger ?? new TraceLogger();
-
_primaryKey = schema.PrimaryKey;
- if (schema == null)
-
Suggestion 6:
Add type check before parsing
The code assumes the response is always a string that needs parsing, but HTTP responses might already be parsed objects. This could cause errors if the response is already a JSON object. Add a type check before parsing.
lib/language-inference-engine.js [217]
-response = JSON.parse(response)
+response = typeof response === 'string' ? JSON.parse(response) : response;
Suggestion 7:
Add null check
The function doesn't check if promptEditorRef.current exists before calling methods on it, which could lead to runtime errors if the ref isn't initialized.
WelsonJS.Toolkit/WelsonJS.Launcher/editor.html [195-202]
const invoke = () => {
try {
- const updated = promptEditorRef.current.get();
- promptMessagesRef.current = updated;
+ if (promptEditorRef.current) {
+ const updated = promptEditorRef.current.get();
+ promptMessagesRef.current = updated;
+ }
} catch (e) {
console.error("Invalid JSON structure", e);
}
};
Pattern 2: Replace ad-hoc or duplicated logic with extraction into a single reusable function/method to eliminate duplication and centralize behavior.
Example code before:
function doStart() { startServer(); openBrowser(); }
function onMenuClick() { startServer(); openBrowser(); }
Example code after:
function launch() { startServer(); openBrowser(); }
function doStart() { launch(); }
function onMenuClick() { launch(); }
Relevant past accepted suggestions:
Suggestion 1:
Refactor duplicated code into one method
Extract the duplicated logic from the startCodeEditorToolStripMenuItem_Click and btnStartTheEditor_Click event handlers into a single private method to improve maintainability.
WelsonJS.Toolkit/WelsonJS.Launcher/MainForm.cs [294-324]
-private void startCodeEditorToolStripMenuItem_Click(object sender, EventArgs e)
-{
- if (RunResourceServer())
- {
- Program.OpenWebBrowser(Program._resourceServer.GetPrefix());
- }
-}
-...
-private void btnStartTheEditor_Click(object sender, EventArgs e)
+private void LaunchEditor()
{
if (RunResourceServer())
{
Program.OpenWebBrowser(Program._resourceServer.GetPrefix());
}
}
+private void startCodeEditorToolStripMenuItem_Click(object sender, EventArgs e)
+{
+ LaunchEditor();
+}
+...
+private void btnStartTheEditor_Click(object sender, EventArgs e)
+{
+ LaunchEditor();
+}
+
Suggestion 2:
Make trace listener setup safer
Adding a listener in a static constructor risks duplicate listeners if multiple AppDomains or re-initializations occur and can throw if file is locked. Guard against duplicates and wrap setup in try/catch to avoid crashing logging initialization.
WelsonJS.Toolkit/WelsonJS.Launcher/TraceLogger.cs [17-24]
static TraceLogger()
{
- _logFileName = typeof(TraceLogger).Namespace + ".log";
-
- var textWriterTraceListener = new TextWriterTraceListener(_logFileName);
- Trace.Listeners.Add(textWriterTraceListener);
- Trace.AutoFlush = true;
+ try
+ {
+ _logFileName = (typeof(TraceLogger).Namespace ?? "WelsonJS") + ".log";
+ // Avoid adding duplicate listeners for the same file
+ foreach (TraceListener l in Trace.Listeners)
+ {
+ if (l is TextWriterTraceListener tw && string.Equals(tw.Writer?.ToString(), _logFileName))
+ {
+ Trace.AutoFlush = true;
+ return;
+ }
+ }
+ var textWriterTraceListener = new TextWriterTraceListener(_logFileName);
+ Trace.Listeners.Add(textWriterTraceListener);
+ Trace.AutoFlush = true;
+ }
+ catch
+ {
+ // Swallow to avoid failing app startup due to logging issues
+ }
}
Suggestion 3:
Use UseObject pattern for resource management
The function should use the new UseObject pattern for proper resource management. This ensures the COM object is properly cleaned up even if an exception occurs during the operation.
function writeBinaryFile(path, data) {
- var binaryStream = CreateObject("ADODB.Stream");
- binaryStream.Type = PipeIPC.adTypeBinary;
- binaryStream.Open();
- binaryStream.Write(data);
- binaryStream.SaveToFile(path, adSaveCreateOverWrite);
- binaryStream.Close();
+ return UseObject("ADODB.Stream", function(binaryStream) {
+ binaryStream.Type = PipeIPC.adTypeBinary;
+ binaryStream.Open();
+ binaryStream.Write(data);
+ binaryStream.SaveToFile(path, adSaveCreateOverWrite);
+ binaryStream.Close();
+ });
}
Pattern 3: Use safe asynchronous patterns by returning Task/Promise, awaiting when needed, and capturing/logging exceptions for fire-and-forget operations.
Example code before:
async function init() {
fetchConfig(); // fire-and-forget, errors lost
}
Example code after:
async function fetchConfig() { /* ... */ }
async function init() {
try { await fetchConfig(); } catch (e) { logError(e); }
}
Relevant past accepted suggestions:
Suggestion 1:
Safely handle async init task
The async call to fetch configuration is fire-and-forget, which can swallow exceptions and race with code that depends on _blobConfig. Capture the task and log exceptions, or await during startup. If startup cannot be async, store the task and handle its exceptions on a background continuation.
WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs [45-57]
public ResourceServer(string prefix, string resourceName, ICompatibleLogger logger = null)
{
_logger = logger ?? new TraceLogger();
_prefix = prefix;
_listener = new HttpListener();
_resourceName = resourceName;
- // Fetch a blob config from Internet
- FetchBlobConfig().ConfigureAwait(false);
+ // Fetch a blob config from Internet (safe fire-and-forget with logging)
+ _ = FetchBlobConfig().ContinueWith(t =>
+ {
+ if (t.IsFaulted)
+ {
+ _logger?.Error($"FetchBlobConfig failed: {t.Exception}");
+ }
+ }, TaskScheduler.Default);
// Add resource tools
_tools.Add(new ResourceTools.Completion(this, _httpClient));
_tools.Add(new ResourceTools.Settings(this, _httpClient));
Suggestion 2:
Make trace listener setup safer
Adding a listener in a static constructor risks duplicate listeners if multiple AppDomains or re-initializations occur and can throw if file is locked. Guard against duplicates and wrap setup in try/catch to avoid crashing logging initialization.
WelsonJS.Toolkit/WelsonJS.Launcher/TraceLogger.cs [17-24]
static TraceLogger()
{
- _logFileName = typeof(TraceLogger).Namespace + ".log";
-
- var textWriterTraceListener = new TextWriterTraceListener(_logFileName);
- Trace.Listeners.Add(textWriterTraceListener);
- Trace.AutoFlush = true;
+ try
+ {
+ _logFileName = (typeof(TraceLogger).Namespace ?? "WelsonJS") + ".log";
+ // Avoid adding duplicate listeners for the same file
+ foreach (TraceListener l in Trace.Listeners)
+ {
+ if (l is TextWriterTraceListener tw && string.Equals(tw.Writer?.ToString(), _logFileName))
+ {
+ Trace.AutoFlush = true;
+ return;
+ }
+ }
+ var textWriterTraceListener = new TextWriterTraceListener(_logFileName);
+ Trace.Listeners.Add(textWriterTraceListener);
+ Trace.AutoFlush = true;
+ }
+ catch
+ {
+ // Swallow to avoid failing app startup due to logging issues
+ }
}
Suggestion 3:
Fix async method signature
The FetchBlobConfig method is asynchronous but doesn't return a Task, making it fire-and-forget. This could lead to unhandled exceptions and the application might continue without a properly loaded blob configuration. Consider making it return a Task and awaiting it during initialization.
WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs [425-444]
-private static async void FetchBlobConfig()
+private static async Task FetchBlobConfig()
{
try
{
string url = Program.GetAppConfig("BlobConfigUrl");
var response = await _httpClient.GetStreamAsync(url);
var serializer = new XmlSerializer(typeof(BlobConfig));
using (var reader = new StreamReader(response))
{
_blobConfig = (BlobConfig)serializer.Deserialize(reader);
}
_blobConfig?.Compile();
}
catch (Exception ex)
{
Trace.TraceError($"Failed to fetch a blob config. Exception: {ex.Message}");
}
}
Suggestion 4:
Guard deserialization with null checks
Add a null check on the deserialization result before using it to avoid possible NullReferenceException. Also validate that the stream is not null before constructing the reader.
WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs [448-453]
using (var response = await _httpClient.GetStreamAsync(url))
-using (var reader = new StreamReader(response))
{
- var serializer = new XmlSerializer(typeof(BlobConfig));
- _blobConfig = (BlobConfig)serializer.Deserialize(reader);
+ if (response == null)
+ {
+ _logger?.Warn("Blob config response stream was null.");
+ return;
+ }
+ using (var reader = new StreamReader(response))
+ {
+ var serializer = new XmlSerializer(typeof(BlobConfig));
+ var deserialized = serializer.Deserialize(reader) as BlobConfig;
+ if (deserialized == null)
+ {
+ _logger?.Warn("Failed to deserialize BlobConfig (null result).");
+ return;
+ }
+ _blobConfig = deserialized;
+ }
}
Pattern 4: Harden HTTP/CORS and CDN handling by using fixed allow-lists, setting headers only on valid CORS responses, and guarding path transforms.
Example code before:
headers["Access-Control-Allow-Methods"] = req.headers["Access-Control-Request-Method"];
path = path.substring("jquery/".length);
Example code after:
headers["Access-Control-Allow-Methods"] = "GET, POST, PUT, DELETE, OPTIONS";
if (originAllowed) headers["Vary"] = "Origin";
if (path.startsWith("jquery/") && path.length > 7) path = path.substring(7);
Relevant past accepted suggestions:
Suggestion 1:
Avoid reflecting request headers in response
To improve security, use a fixed, server-approved list for Access-Control-Allow-Methods and Access-Control-Allow-Headers response headers instead of reflecting values from the request.
WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs [547-553]
var h = context.Response.Headers;
-h["Access-Control-Allow-Methods"] = string.IsNullOrEmpty(requestMethod)
- ? "GET, POST, PUT, DELETE, OPTIONS"
- : requestMethod;
-h["Access-Control-Allow-Headers"] = string.IsNullOrEmpty(requestHeaders)
- ? "Content-Type, Authorization, X-Requested-With"
- : requestHeaders;
+h["Access-Control-Allow-Methods"] = "GET, POST, PUT, DELETE, OPTIONS";
+h["Access-Control-Allow-Headers"] = "Content-Type, Authorization, X-Requested-With";
Suggestion 2:
Only set Vary header on CORS responses
Move the addition of the Vary: Origin header to only occur when a request's origin is successfully validated and a CORS response is generated. This will prevent potential caching issues.
WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs [514-530]
var respHeaders = context.Response.Headers;
-respHeaders["Vary"] = "Origin";
if (allowed.Any(a => a == "*"))
{
respHeaders["Access-Control-Allow-Origin"] = "*";
+ respHeaders["Vary"] = "Origin";
return true;
}
if (allowed.Contains(origin, StringComparer.OrdinalIgnoreCase))
{
respHeaders["Access-Control-Allow-Origin"] = origin;
respHeaders["Access-Control-Allow-Credentials"] = "true";
+ respHeaders["Vary"] = "Origin";
return true;
}
return false;
Suggestion 3:
Prevent substring exception
The JqueryCdnPrefix transform is removing the "jquery/" prefix from the path, but this could cause issues if the path doesn't have sufficient length. Add a check to prevent potential ArgumentOutOfRangeException when the path is too short.
WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs [196-210]
private async Task<bool> TryServeFromCdn(HttpListenerContext context, string path)
{
bool isNodePackageExpression = Regex.IsMatch(path, @"^[^/@]+@[^/]+/");
var sources = new (bool isMatch, string configKey, Func<string, string> transform)[]
{
(path.StartsWith("ajax/libs/"), "CdnJsPrefix", p => p),
(isNodePackageExpression, "UnpkgPrefix", p => p),
(isNodePackageExpression, "SkypackPrefix", p => p),
(isNodePackageExpression, "EsmShPrefix", p => p),
(isNodePackageExpression, "EsmRunPrefix", p => p),
(path.StartsWith("npm/") || path.StartsWith("gh/") || path.StartsWith("wp/"), "JsDeliverPrefix", p => p),
- (path.StartsWith("jquery/"), "JqueryCdnPrefix", p => p.Substring("jquery/".Length)),
+ (path.StartsWith("jquery/") && path.Length > "jquery/".Length, "JqueryCdnPrefix", p => p.Substring("jquery/".Length)),
(true, "BlobStoragePrefix", p => p) // fallback
};
Suggestion 4:
Improve package detection regex
The regex pattern for detecting node package expressions might not handle all valid package formats. Consider using a more comprehensive pattern that accounts for scoped packages (starting with @) and various version formats.
WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs [198]
-bool isNodePackageExpression = Regex.IsMatch(path, @"^[^/@]+@[^/]+/");
+bool isNodePackageExpression = Regex.IsMatch(path, @"^(@[a-z0-9-]+\/[a-z0-9-]+|[a-z0-9-]+)@([0-9]+\.[0-9]+\.[0-9]+|[0-9]+\.[0-9]+|[0-9]+|latest|next|[^/]+)/");
Suggestion 5:
Add missing crossorigin attribute
The integrity attribute for the lodash script is missing the 'crossorigin' attribute which is required for Subresource Integrity (SRI) checks to work properly.
WelsonJS.Toolkit/WelsonJS.Launcher/editor.html [53]
-<script src="http://localhost:3000/ajax/libs/lodash/4.17.21/lodash.min.js" integrity="sha384-H6KKS1H1WwuERMSm+54dYLzjg0fKqRK5ZRyASdbrI/lwrCc6bXEmtGYr5SwvP1pZ"></script>
+<script src="http://localhost:3000/ajax/libs/lodash/4.17.21/lodash.min.js" integrity="sha384-H6KKS1H1WwuERMSm+54dYLzjg0fKqRK5ZRyASdbrI/lwrCc6bXEmtGYr5SwvP1pZ" crossorigin="anonymous"></script>
Pattern 5: Improve logging semantics and error surfaces by using appropriate log levels and returning structured error objects instead of silent failures.
Example code before:
if (alreadyRunning) logger.error("App already running");
try { /* ... */ } catch { return {}; }
Example code after:
if (alreadyRunning) logger.info("App already running");
try { /* ... */ } catch (e) { return { error: true, message: e.message || "Unknown error" }; }
Relevant past accepted suggestions:
Suggestion 1:
Use appropriate log level
Using Error level logging for a normal application behavior (preventing multiple instances) is inappropriate. This should be logged as Info or Warning since it's expected behavior, not an error condition.
WelsonJS.Toolkit/WelsonJS.Launcher/Program.cs [33-37]
if (!createdNew)
{
- _logger.Error("WelsonJS Launcher already running.");
+ _logger.Info("WelsonJS Launcher already running.");
return;
}
Suggestion 2:
Safely handle async init task
The async call to fetch configuration is fire-and-forget, which can swallow exceptions and race with code that depends on _blobConfig. Capture the task and log exceptions, or await during startup. If startup cannot be async, store the task and handle its exceptions on a background continuation.
WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs [45-57]
public ResourceServer(string prefix, string resourceName, ICompatibleLogger logger = null)
{
_logger = logger ?? new TraceLogger();
_prefix = prefix;
_listener = new HttpListener();
_resourceName = resourceName;
- // Fetch a blob config from Internet
- FetchBlobConfig().ConfigureAwait(false);
+ // Fetch a blob config from Internet (safe fire-and-forget with logging)
+ _ = FetchBlobConfig().ContinueWith(t =>
+ {
+ if (t.IsFaulted)
+ {
+ _logger?.Error($"FetchBlobConfig failed: {t.Exception}");
+ }
+ }, TaskScheduler.Default);
// Add resource tools
_tools.Add(new ResourceTools.Completion(this, _httpClient));
_tools.Add(new ResourceTools.Settings(this, _httpClient));
Suggestion 3:
Make trace listener setup safer
Adding a listener in a static constructor risks duplicate listeners if multiple AppDomains or re-initializations occur and can throw if file is locked. Guard against duplicates and wrap setup in try/catch to avoid crashing logging initialization.
WelsonJS.Toolkit/WelsonJS.Launcher/TraceLogger.cs [17-24]
static TraceLogger()
{
- _logFileName = typeof(TraceLogger).Namespace + ".log";
-
- var textWriterTraceListener = new TextWriterTraceListener(_logFileName);
- Trace.Listeners.Add(textWriterTraceListener);
- Trace.AutoFlush = true;
+ try
+ {
+ _logFileName = (typeof(TraceLogger).Namespace ?? "WelsonJS") + ".log";
+ // Avoid adding duplicate listeners for the same file
+ foreach (TraceListener l in Trace.Listeners)
+ {
+ if (l is TextWriterTraceListener tw && string.Equals(tw.Writer?.ToString(), _logFileName))
+ {
+ Trace.AutoFlush = true;
+ return;
+ }
+ }
+ var textWriterTraceListener = new TextWriterTraceListener(_logFileName);
+ Trace.Listeners.Add(textWriterTraceListener);
+ Trace.AutoFlush = true;
+ }
+ catch
+ {
+ // Swallow to avoid failing app startup due to logging issues
+ }
}
Suggestion 4:
Return structured error on failure
Preserve error context in the response to allow callers to detect failures instead of returning an indistinguishable empty object. Include an error flag and message so downstream logic can branch appropriately.
} catch (e) {
console.warn(e.message);
- response = {};
+ response = { error: true, message: e && e.message ? e.message : "Request failed" };
}
Pattern 6: Use standard, safer, or more expressive APIs and names to reduce bugs (e.g., trim() over regex replace, correct boolean naming).
Example code before:
path = path.replace(/^\s+/, "").replace(/\s+$/, "");
var isAlreadyRunning = createdNew; // misleading
Example code after:
path = path.trim();
var createdNew = createdNew; // or rename usage: if (!createdNew) { /* ... */ }
Relevant past accepted suggestions:
Suggestion 1:
Use trim() for whitespace removal
Replace the replace calls with the more standard String.prototype.trim() method to remove whitespace from both ends of the path string.
-path = path.replace(/^\s+/, "").replace(/\s+$/, "");
+path = path.trim();
Suggestion 2:
Fix misleading variable name
The variable name isAlreadyRunning is misleading because it's actually true when the mutex is created successfully (meaning this is the first instance). The logic should check for isAlreadyRunning being false to detect multiple instances.
WelsonJS.Toolkit/WelsonJS.Launcher/Program.cs [32-37]
-_mutex = new Mutex(true, "WelsonJS.Launcher", out bool isAlreadyRunning);
-if (!isAlreadyRunning)
+_mutex = new Mutex(true, "WelsonJS.Launcher", out bool createdNew);
+if (!createdNew)
{
_logger.Error("WelsonJS Launcher already running.");
return;
}
Suggestion 3:
Fix grammar and add validation
The comment contains a grammatical error ("an unwanted features" should be "unwanted features"). Additionally, consider adding validation to ensure disableFeatures is an array before calling join() to prevent runtime errors.
-// disable an unwanted features
-cmd.push("--disable-features=" + this.disableFeatures.join(','));
+// disable unwanted features
+if (Array.isArray(this.disableFeatures) && this.disableFeatures.length > 0) {
+ cmd.push("--disable-features=" + this.disableFeatures.join(','));
+}
Suggestion 4:
Improve deprecation notice
**
-
- @deprecated Use STD.EventTarget instead of STD.EventableObject
- */
**Add a more descriptive deprecation notice that includes migration guidance. This helps developers understand why the feature is deprecated and how they should update their code.**
[lib/std.js [617-618]](https://github.com/gnh1201/welsonjs/pull/272/files#diff-fed60f70a945ad6b2f1f77def7fd34f63f5434f931067f710eba73263f4ee3abR617-R618)
```diff
-// @deprecated
+// @deprecated since v0.8.18 - Use exports.EventTarget instead of EventableObject
exports.EventableObject = StdEventTarget;
Suggestion 5:
Fix undefined variable reference
The code references BIAS_MESSAGE which appears to be undefined in the provided code. This will cause a reference error when the function is called. Either define this variable or replace it with the actual bias message text.
lib/language-inference-engine.js [198-215]
"wrap": function(model, message, temperature) {
+ const BIAS_MESSAGE = "Please provide a helpful response."; // Define BIAS_MESSAGE or import it from elsewhere
return {
"contents": [{
"role": "user", // Changed "developer" to "user" for the initial prompt. The overall prompt is still intended to guide the model, so this is reasonable.
"parts": [{
"text": BIAS_MESSAGE
}]
}, {
"role": "user",
"parts": [{
"text": message
}]
}],
"generationConfig": {
"temperature": temperature
}
};
},
Suggestion 6:
Add missing model selection
The code doesn't set a model for the Gemini provider before calling inference. This will likely cause the API call to fail as the model is required in the URL. Add a call to .setModel() with one of the available Gemini models.
examples/honoai_gemini.ai.js [8-11]
var res = LIE.create()
.setProvider(provider)
+ .setModel("gemini-1.5-flash")
.inference(text, 0)
.join(' ')
[Auto-generated best practices - 2025-10-28]