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                #### 第一種方式 ~~~php //對于創建一個字符串的函數 var test = new Function('arg','console.log(arg+1)'); test(2) ; //3 //其等價于 var test = function(arg) { console.log(arg + 1); } test(2); // 3 ~~~ #### 第二種方式 ~~~php var test = new Function(arg,'console.log(arg+1)'); var arg = 2; test();//3 ~~~ #### 第三種方式 我們甚至不需要顯式地傳參數給這個函數。我們使用apply方法來調用它。它會自動設定函數執行的上下文。這就是為什么我們能在函數里面使用this.arg。這里this指向data對象。 ~~~php var data = {arg:2} var test = new Function('console.log(this.age+1)').apply(data); //3 ~~~
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