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Code Issues Releases Wiki Activity

Some new utilities

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Jeremy Ruston 2012-05-08 15:11:29 +01:00
parent 94834d5d27
commit d92dfa3d81
1 changed files with 53 additions and 0 deletions
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53
core/modules/utils.js
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@ -14,6 +14,59 @@ This file is a bit of a dumping ground; the expectation is that most of these fu
/*global $tw: false */ /*global $tw: false */
"use strict"; "use strict";
// Check if an object has a property
exports.hop = function(object,property) {
return Object.prototype.hasOwnProperty.call(object,property);
};
/*
Push entries onto an array, removing them first if they already exist in the array
array: array to modify
value: a single value to push or an array of values to push
*/
exports.pushTop = function(array,value) {
var t,p;
if($tw.utils.isArray(value)) {
// Remove any array entries that are duplicated in the new values
for(t=0; t<value.length; t++) {
p = array.indexOf(value[t]);
if(p !== -1) {
array.splice(p,1);
}
}
// Push the values on top of the main array
array.push.apply(array,value);
} else {
p = array.indexOf(value);
if(p !== -1) {
array.splice(p,1);
}
array.push(value);
}
};
/*
Remove entries from an array
array: array to modify
value: a single value to remove, or an array of values to remove
*/
exports.removeArrayEntries = function(array,value) {
var t,p;
if($tw.utils.isArray(value)) {
for(t=0; t<value.length; t++) {
p = array.indexOf(value[t]);
if(p !== -1) {
array.splice(p,1);
}
}
} else {
p = array.indexOf(value);
if(p !== -1) {
array.splice(p,1);
}
}
};
exports.deepCopy = function(object) { exports.deepCopy = function(object) {
var result,t; var result,t;
if($tw.utils.isArray(object)) { if($tw.utils.isArray(object)) {