mirror of
https://github.com/idanoo/GoScrobble.git
synced 2024-11-22 16:35:14 +00:00
30 lines
527 B
JavaScript
30 lines
527 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
module.exports = function union(init) {
|
||
|
|
if (!Array.isArray(init)) {
|
||
|
|
throw new TypeError('arr-union expects the first argument to be an array.');
|
||
|
|
}
|
||
|
|
|
||
|
|
var len = arguments.length;
|
||
|
|
var i = 0;
|
||
|
|
|
||
|
|
while (++i < len) {
|
||
|
|
var arg = arguments[i];
|
||
|
|
if (!arg) continue;
|
||
|
|
|
||
|
|
if (!Array.isArray(arg)) {
|
||
|
|
arg = [arg];
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var j = 0; j < arg.length; j++) {
|
||
|
|
var ele = arg[j];
|
||
|
|
|
||
|
|
if (init.indexOf(ele) >= 0) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
init.push(ele);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return init;
|
||
|
|
};
|