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Update std.js

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Namhyeon Go 2022-04-29 16:11:49 +09:00 committed by GitHub
parent ea41064aed
commit ef7f6fb0e1
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1 changed files with 16 additions and 0 deletions
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lib/std.js
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@ -251,6 +251,20 @@ function addslashes(s) {
;
};
function cartesian(arr) {
return arr.reduce(function(a, b) {
return a.map(function(x) {
return b.map(function(y) {
return x.concat([y]);
})
}).reduce(function(a, b) {
return a.concat(b);
}, []);
}, [
[]
]);
};
/////////////////////////////////////////////////////////////////////////////////
// Private APIs / Utility functions
/////////////////////////////////////////////////////////////////////////////////
@ -371,4 +385,6 @@ exports.require = global.require;
exports.Event = StdEvent;
exports.EventableObject = StdEventableObject;
exports.alert = alert;
exports.cartesian = cartesian;