JavaScript

Conditional statementsOften when writing code, you always need to perform different actions for different decisions. You can use conditional statements in your code to accomplish this task.In JavaScript, we can use the following conditional

lengthThe Length property can return the number of characters in a string.Length is obtained based on the UTF-16 encoding of the string, with an empty string length of 0. Length cannot be modified.charAt ()The CharAt () method returns the character

Graphics and graphs are more expressive and persuasive than text. A graph is a graphical representation of data, such as a bar chart, a line chart, a pie chart, and so on, through an image chart. Visualization charts can help developers understand

The difference between element and node, Cilldren and childnodes Many friends do not know, this article tries to let you understand the differences between the concepts.node is a common name for any type of object in the DOM hierarchy, and node has

var as = document.getElementsByTagName (' A '), var URLs = [];for (var i=0; iA little note:1, using tagname query DOM elements, the use of full-size is a previous version of the old IE features;2, set with [], collect elements with push operation,

JSON Hijacking vulnerability in JSONP and Its Relationship with csrf/xss Vulnerability I have been exposed to the so-called JSON Hijacking vulnerability during my internship, but recently I found that I did not understand it very well. It seems

Three methods of inheritance and examples in JavaScript, and three methods of javascript Although javascript is an object-oriented language, Its Inheritance Mechanism was designed from the very beginning. It is different from other traditional

Eclipse: graphic tutorial for configuring Javascript development environment, eclipsejavascript First, install Spket. I will not go into detail here. Then configure JQuery: 1. Download the Javascript file for development from JQuery.com. For

Android Webview selects to load local js, css and other resource files when loading external html When using WebView to load web pages, some fixed resource files such as js jquery packages, css, images, and other resources will be relatively large,

JavaScript plugin development tutorial (1): javascript plugin I. Opening Analysis Hi everyone! Today, this series of articles mainly talk about how to develop plug-in-type development based on "JavaScript". I think many people are familiar with the

Problems caused by extension of Array. prototype. indexOf for JS and solutions, jsarrayindexof Array does not have the indexOf method. In this way, it is troublesome to search for the index of an element in an Array. For the convenience of calling,

Basic Javascript Tutorial: switch statement. Basic Tutorial: switch The format of the stwith statement is generally as follows: Copy codeThe Code is as follows:Switch (expression ){Case value: statement1Break;Case value2: statement2Break;....Case

Basic Javascript tutorial-break and continue statements, basic tutorial-continue The break and continue statements provide stricter Process Control for code execution in the loop. The break statement can immediately exit the loop to prevent any code

Js reads the csv file and displays it in json format, csvjson Abstract: We have discussed how to use js to download json data into a csv file for later management. However, testers prefer to display tasks on pages, so an example of displaying csv

Angular. element method summary, angular. element AddClass ()-Add the specified style class name for each Matching ElementAfter ()-insert the content specified by the parameter after each element in the matched element set as its sibling node.Append

Node. js boot script file, node. js Startup Script Copy codeThe Code is as follows:#! /Bin/bash### BEGIN INIT INFO# Provides: xiyoulib# Required-Start: $ all# Required-Stop: $ all# Default-Start: 2 3 4 5# Default-Stop: 0 1 6# Short-Description:

Node. js removes BOM headers in batches and node. js removes bom My colleagues wrote a tool, but there is a bug that after the file is replaced, the format of the original file is changed to utf8 BOM. XML with BOM may not be readable on Mac,

Easy creation of nodejs servers (1): A simple nodejs server example, nodejs Server Let's first implement a simple example, hello world. It seems that the first section of each language tutorial will talk about this, and we are no exception. First,

Javascript Object learning notes, object learning notes ConstructorNew Object () New Object (value) ParametersValueOptional parameter. It declares the original value (that is, Number, Boolean, or String) of the Number object, Boolean object, or

For web development, learn JavaScript and webjavascript first. One day I was asked what language I should learn to quickly increase my strengths in web development. My thoughts go back to college. At that time I used Pascal, Fortran, C, and assembly