use strict

I. Overview In addition to the normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict). As the name implies, this mode allows JavaScript to run under stricter conditions. The purpose of setting up a "strict mode"

I. OverviewIn addition to the normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict). As the name implies, this mode allows JavaScript to run under stricter conditions.The purpose of setting up a "strict mode" is

Reprint from Nanyi blog: http://www.ruanyifeng.com/blog/2013/01/javascript_strict_mode.html#comment-267934I. OverviewIn addition to the normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict). As the name implies,

Note: This article is reproduced in the article reprinted address: http://www.ruanyifeng.com/blog/2013/01/javascript_strict_mode.htmlI. OverviewIn addition to the normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode"

Javascript Strict mode details turn from: Ruan Yi FengI. OverviewIn addition to the normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict). As the name implies, this mode allows JavaScript to run under stricter

Javascript Strict Mode detailedNanyiDate: January 14, 2013I. OverviewIn addition to the normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict). As the name implies, this mode allows JavaScript to run under

I. OverviewIn addition to the normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict). As the name implies, this mode allows JavaScript to run under stricter conditions.The purpose of setting up a "strict mode" is

I. OverviewIn addition to the normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict). As the name implies, this mode allows JavaScript to run under stricter conditions.The purpose of setting up a "strict mode" is

I. OverviewIn addition to the normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict). As the name implies, this mode allows JavaScript to run under stricter conditions.The purpose of setting up a "strict mode" is

I. Overview In addition to normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict modes). As the name suggests, this pattern allows JavaScript to run under more stringent conditions. The purpose of establishing

As we know, JavaScript is a flexible language. Its flexibility also brings a lot of holes and, of course, some are design flaws. Like what A variable is assigned without a declaration, and the default is a global variable, such as (function

1. In addition to the normal running mode, ECMAscript 5 adds the second running mode: strict mode ). As the name suggests, this mode allows Javascript to run under more stringent conditions. The purpose of setting up the "strict mode" is to

One, what is the strict modeWe usually write JavaScript code in normal mode, in addition to normal operation mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict modes). By looking at the name, this pattern will allow JavaScript

Now JavaScript is more than just Web page effect script, more used to build large-scale Web applications, so the language specification of the developers are gradually aware of the syntax of JS to standardize, and deliberately guide the developer

1.JavaScript variable boostIn JavaScript, the declarations of functions and variables are promoted to the topmost part of the function.In JavaScript, variables can be declared after they are used, that is, variables can be declared using the

This article mainly helps you understand the strict mode in javascript and how to enable the strict mode. If you are interested, refer I. What is a strict model? The JavaScript code we usually write is generally run in the normal mode. In addition

Understanding the strict mode in javascript and the javascript Mode I. What is a strict model?The JavaScript code we usually write is generally run in the normal mode. In addition to the normal running mode, ECMAscript 5 adds the second running mode:

How to serialize functions in JavaScript? What is the function serialization function? This article will introduce the function serialization in SpiderMonkey. If you need it, you can refer to the function in Javascript, which can be easily

In Javascript, functions can be easily serialized (stringized), that is, the function source code is obtained. however, the internal implementation (engine implementation) of this operation is not as simple as you think. spiderMonkey has used two

In JavaScript, functions can be easily serialized (string), which is the source of the function. But actually the internal implementation of the operation (the engine implementation) is not as simple as you might think. Two techniques for