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add function formatFileSize()

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This commit is contained in:
Uwe Steinmann 2024-08-12 10:25:23 +02:00
parent 154ec361ed
commit 2d721e542e
2 changed files with 64 additions and 0 deletions
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32
views/bootstrap/styles/application.js
View File

@ -38,6 +38,38 @@ function escapeHtml(text) {
return text.replace(/[&<>"']/g, function(m) { return map[m]; });
}
/**
* Format bytes as human-readable text.
*
* @param bytes Number of bytes.
* @param si True to use metric (SI) units, aka powers of 1000. False to use
* binary (IEC), aka powers of 1024.
* @param dp Number of decimal places to display.
*
* @return Formatted string.
*/
function formatFileSize(bytes, si=false, dp=1) {
const thresh = si ? 1000 : 1024;
if (Math.abs(bytes) < thresh) {
return bytes + ' B';
}
const units = si
? ['kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
: ['KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
let u = -1;
const r = 10**dp;
do {
bytes /= thresh;
++u;
} while (Math.round(Math.abs(bytes) * r) / r >= thresh && u < units.length - 1);
return bytes.toFixed(dp) + ' ' + units[u];
}
function treeFolderSelected(formid, nodeid, nodename) {
$('#'+formid).val(nodeid);
$('#choosefoldersearch'+formid).val(nodename);

32
views/bootstrap4/styles/application.js
View File

@ -38,6 +38,38 @@ function escapeHtml(text) {
return text.replace(/[&<>"']/g, function(m) { return map[m]; });
}
/**
* Format bytes as human-readable text.
*
* @param bytes Number of bytes.
* @param si True to use metric (SI) units, aka powers of 1000. False to use
* binary (IEC), aka powers of 1024.
* @param dp Number of decimal places to display.
*
* @return Formatted string.
*/
function formatFileSize(bytes, si=false, dp=1) {
const thresh = si ? 1000 : 1024;
if (Math.abs(bytes) < thresh) {
return bytes + ' B';
}
const units = si
? ['kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
: ['KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
let u = -1;
const r = 10**dp;
do {
bytes /= thresh;
++u;
} while (Math.round(Math.abs(bytes) * r) / r >= thresh && u < units.length - 1);
return bytes.toFixed(dp) + ' ' + units[u];
}
function treeFolderSelected(formid, nodeid, nodename) {
$('#'+formid).val(nodeid);
$('#choosefoldersearch'+formid).val(nodename);