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-rw-r--r--node_modules/core-js/modules/_bind.js25
1 files changed, 25 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/_bind.js b/node_modules/core-js/modules/_bind.js
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+++ b/node_modules/core-js/modules/_bind.js
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+'use strict';
+var aFunction = require('./_a-function');
+var isObject = require('./_is-object');
+var invoke = require('./_invoke');
+var arraySlice = [].slice;
+var factories = {};
+
+var construct = function (F, len, args) {
+ if (!(len in factories)) {
+ for (var n = [], i = 0; i < len; i++) n[i] = 'a[' + i + ']';
+ // eslint-disable-next-line no-new-func
+ factories[len] = Function('F,a', 'return new F(' + n.join(',') + ')');
+ } return factories[len](F, args);
+};
+
+module.exports = Function.bind || function bind(that /* , ...args */) {
+ var fn = aFunction(this);
+ var partArgs = arraySlice.call(arguments, 1);
+ var bound = function (/* args... */) {
+ var args = partArgs.concat(arraySlice.call(arguments));
+ return this instanceof bound ? construct(fn, args.length, args) : invoke(fn, args, that);
+ };
+ if (isObject(fn.prototype)) bound.prototype = fn.prototype;
+ return bound;
+};