store function in variable javascript

1) Intro Not long ago I set up a technology group in a MM asked a question like this, she posted the code as follows: var a = 1;function hehe (){Window.alert (a);var a = 2;Window.alert (a);}Hehe (); The results of the execution are as follows:

In Javascrip, a function is a built-in class object, which means that it is a type of object that can be used for the management of built-in objects just like other objects of the string, Array, number, and object classes. Because the function is

ArticleDirectory Javascript Introduction How to Implement Javascript Where to place Javascript Javascript statements Javascript Variables Javascript Operators Javascript branch statement Javascript message box

Document directory I. What is JavaScript? Ii. Start of JavaScript programming Iii. Implementation basics of JavaScript Iv. Summary of this Chapter From the beginning of college, I began to learn how to create web pages and began to access

*1, Variable type:JavaScript is a weak type, a variable can store any type, and the run-time type is variable;-> variables can be converted to type;*/ /*2, Variable declaration:*/var i;var index;var i, index;var i = 0, index = 2;/*Variable

JavaScript is becoming more and more popular. It can be said that it is one of the most prominent languages on the Internet. You can use it across platforms and Browsers without rejecting backend languages. There are many different development

JavaScript BasicsJavaScript is a scripting language that belongs to the web!JavaScript is used by millions of of pages to improve design, verify forms, detect browsers, create cookies, and more.JavaScript is the most popular scripting language on

JavaScript is weak type, variables can store any type, and the type is variable during running The Code is as follows: /*1. Variable type:JavaScript is weak, variables can store any type, and the type is variable during running;-> Variable type

Judgment of variable types in javascript, javascript Variables Address: http://www.xiabingbao.com/javascript/2015/07/04/javascript-type In JavaScript, there are 5 basic data types and 1 complex data type. The basic data types include:Undefined,Null,

We often see some data types in javascript, such as "undefined", "boolean", and "string, this article will help you learn the basic JavaScript data types, value types, and reference types. For more information, see this article, four basic data