aaac7fed
 liuqimichale
add
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/*!
* arr-diff <https://github.com/jonschlinkert/arr-diff>
*
* Copyright (c) 2014-2017, Jon Schlinkert.
* Released under the MIT License.
*/
'use strict';
module.exports = function diff(arr/*, arrays*/) {
var len = arguments.length;
var idx = 0;
while (++idx < len) {
arr = diffArray(arr, arguments[idx]);
}
return arr;
};
function diffArray(one, two) {
if (!Array.isArray(two)) {
return one.slice();
}
var tlen = two.length
var olen = one.length;
var idx = -1;
var arr = [];
while (++idx < olen) {
var ele = one[idx];
var hasEle = false;
for (var i = 0; i < tlen; i++) {
var val = two[i];
if (ele === val) {
hasEle = true;
break;
}
}
if (hasEle === false) {
arr.push(ele);
}
}
return arr;
}
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