From my XArray mixin class (all 3 are needed).
/**
* Returns a new array by removing duplicate values in Array.
*/
Array.prototype.uniq = function()
{
var r = [];
var l = this.length;
for (var a = 0; a < l; a++) {
if (!r.has(this[a])) r.push(this[a]);
}
return r;
};
/**
* An array is equal to another array if the lengths are equal and each
* corresponding element is equal
*/
Array.prototype.eql = function(arr) {
if (arr.length != this.length || !(arr instanceof Array)) {
return false;
} else {
var a = this.length;
while (--a -(-1)) {
if (this[a] instanceof Array) {
if (!this[a].eql(arr[a])) return false;
} else if (this[a] != arr[a]) {
return false;
}
}
}
return true;
};
/**
* Returns true if the given obj is present in Array
* (if any element == obj)
*/
Array.prototype.has = function(obj) {
var a = this.length;
if (!(obj instanceof Array)) {
while (--a -(-1)) {
if (this[a] == obj) return true;
}
} else {
while (--a -(-1)) {
if (this[a].eql(obj)) return true;
}
}
return false;
};
http://ubergeek.tv/XArray/XArray.as
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