The scope and scope chain of JavaScript

Today is the first day of 2016, we have to set sail to embark on a new journey. This article describes several concepts that are important in javascript: scope and scope chains, and related knowledge points.Let's start with a discussion of the

The most detailed explanations of JavaScript and events

When interacting with the browser, the browser triggers various events. For example, when we open a webpage, the browser loads the page, it triggers an load event, and when we click on a "place" in the page, the browser triggers an event in that

Example of window Jitter code implemented by JavaScript

Example of window Jitter code implemented by javascript:Window jitter effect in many places have applications, such as NetEase Landing window has such a effect, when landing failure will appear jitter effect, this not only has a dynamic, but also

Introduction to the use of encodeURI and decodeURI methods in JavaScript

encodeURI and decodeURI are used in pairs, because the address bar of the browser has Chinese characters, which can cause unexpected errors.So you can encodeuri non-English characters into English code, decodeURI can be used to restore the

JavaScript Object + Browser Object + HTML DOM Object

JavaScript Objects Array Boolean Date Math Number String Regexp Global Browser Object Window Navigator Screen History Location HTML DOM Object Document Anchor Area

The array object in JavaScript

1. Create an Array objectSyntax for creating an array objectvar array name = new Array ();After the array is defined. You need to add elements to the array. Formats such as the followingArray name []= value;2. Array Object PropertiesThe array object

"JavaScript Advanced Programming" (third edition) Personal note

1. Using "Use strict" on the top of the script or in the first line of the function will enable strict mode or execute in strict mode2. Define the variable that holds the object and initialize it to null3.null = = Underfined,is true;4.typeof Null,is

Easy learning JavaScript 21: Dom Programming learning gets the child nodes and attribute nodes of the element node

What we're talking about here is that all child nodes of the Get element node contain both the element child node and the text node. Or take a code instance of a blog postAnalysis: Do you like the city Beijing Tianjin Shanghai Chongqing

JavaScript implementation preserves two decimal places one-digit auto-complement 0 code instance

The JavaScript implementation retains a two-bit decimal one-digit auto-complement 0 code instance:This chapter describes how to achieve the number of two-bit decimal effect, if the number of original decimal places less than two bits, then the lack

"= =" and "= = =" in JavaScript

for JavaScript "= =" and "= = =" Difference I think a lot of people should be very clear, examples:1==true//true1===true//falseWe usually judge two data, and the "= =" in JavaScript takes an implicit cast, while "= = =" means two data types are

JavaScript closure function quick to get started

What is a closure function? At the beginning of the closure of the study, we can all be more difficult to understand. From his official explanation, it is more conceptualized.But we also start with the meaning of closures.Closures are variables that

Front-end JavaScript SDK based on seven KN API development

This is the content of our engineering practice, because of time reasons, specifically do not repeat, ah ~ mainly because of lazy O (╯-╰) O Engineering practice of the topic for the Openedx back-end management system function expansion and

JS closure anonymous function JavaScript iife (Instant execution method) immediately-invoked function expression

Reference: http://segmentfault.com/a/1190000000348228http://segmentfault.com/q/1010000000442042Problem:(function() {a() {alert ("a");}}) ();Here (function () {XXX}) (); What do you mean, why it's so good to write?For:function foo() {...} // 这是定义,

How to set the CSS connection & lt; a & gt; style and css setting Style

How does CSS set the style of the connection and css set the style? How to set the style of CSS connection :In the Website, you may need to set the link style to be more beautiful. By default, the style after the link is not clicked is different,

Easy to learn JavaScript 26: How to dynamically add JS scripts and CSS styles in DOM programming Learning

Easy to learn JavaScript 26: How to dynamically add JS scripts and CSS styles in DOM programming LearningThe following HTML document code is used: div Region 1. dynamically load external JS files Code for dynamically loading the external index.

Css: Media Queries, cssmediaqueries

Css: Media Queries, cssmediaqueries From:

Front-end: Try to understand the CSS box model from a new perspective (1) and understand css in Depth

Front-end: Try to understand the CSS box model from a new perspective (1) and understand css in Depth CSS style rules are tedious and boring to learn, because they do not have basic concepts, basic principles, or rules like physics, mathematics, or

Differences between using float and display: block to convert inline elements into block elements: floatblock

Differences between using float and display: block to convert inline elements into block elements: floatblock Differences between using float and display: block to convert inline elements into block elements:Suggestion: writing code as much as

Netease front-end micro professional, JavaScript programming basics: Array

Netease front-end micro professional, JavaScript programming basics: Array Arrays of any language are important. As a basic object, arrays are widely used. For example, Java, you must add a List or Map. Therefore, this article mainly records the use

Ss3 to achieve the border rounded corner effect, ss3 to achieve the border rounded corner

Ss3 to achieve the border rounded corner effect, ss3 to achieve the border rounded corner It is often seen that someone else's website has a border to modify the text area, similar to the rounded rectangle to wrap the text, especially feeling, so I

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