JavaScript performance optimization - call methods or attributes of array elements

From , 5 Years ago, written in JavaScript, viewed 91 times.

//直接使用数组元素调用，慢
myArray[myIndex].myMethod1();
myArray[myIndex].myMethod2();
myArray[myIndex].my_variable;
 
//放到变量里再通过变量调用，快
var element = myArray[myIndex];
element.myMethod1();
element.myMethod2();
element.my_variable;
//javascript/2145

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JavaScript performance optimization - call methods or attributes of array elements

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