var that = null;Function.prototype.bind = function(obj,arg){ if (that == null){ that = this } return function(){ return that.call(obj,arg); } };function foo() { return this.bar; } foo = foo.bind({bar:1}); foo = foo.bind({bar:2});var result = foo(); console.log(result);//2
以上就是重写bind方法的详细内容,更多请关注php中文网其它相关文章!
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