JavaScript

There are three ways to control the position of the scroll bar in JavaScript, so let's take a look at it separately. Method One: Using scroll function to realize Scroll (x,y); X represents the position of the horizontal scroll bar, which controls

Problem:Makes it possible to follow the previous settings when accessing a page, or to share data between different pages. For example, when users visit the site to set the size of the page font, then you will want to visit the next time you can

fill in the upper text box with "name/email/age" to enable the dynamic addition or deletion of cells in the table below Effect: 1. html code: name: Email: Age: name Email age

Original source: http://www.cnblogs.com/iyangyuan/p/4190773.html jquery This write less do more frame, with a lot of will inevitably to native JS Yangaoshoudi. Small dishes In fact do not want to write this blog, seemingly very elementary

Turn from: http://www.rainleaves.com/html/1684.html A JavaScript static class is simply a class that does not have to be created by new, and can be used directly, like the built-in global class of JavaScript, such as math and object. JavaScript

Variable scope A variable scope is a program in which the value of a variable can be obtained. A JavaScript function scope is defined as a function scope, which means that the value of a variable is visible in the function that defines and declares

Method One: Minimum value Array.prototype.min = function () { var min = this[0]; var len = this.length; for (var i = 1; i max) { max = this[i]; } } return max; } Method Two: The results can be obtained quickly with Math.max and Math.min

Today see a Good article, reprinted and Share. Reprint Address http://www.ruanyifeng.com/blog/2014/10/event-loop.html One, why JavaScript is a single thread. One of the main features of JavaScript language is single-threaded, that is, one thing

[Leetcode/javascript] 461.Hamming Distance Topic The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0≤x, y

The reason why this article is written, because in the pen test, you will encounter a very classical topic, about the output of settimeout, the following we first look at a topic: for (var i = 0; i I believe that as long as the front-end pen test

Server-side languages such as php/asp/jsp provide a function to obtain URL parameters. But there are times when page caching is required, and server-side functionality is limited. So using JavaScript to get URL parameters is a viable solution in

JavaScript has many built-in methods for generating dialog boxes, such as: Window.alert (), Window.confirm (), Window.prompt (), and so on. However, IE provides more methods to support the dialog box. Such as: ShowModalDialog () (IE 4+

1, getElementById () The getElementById () method returns a reference to the first object that has the specified ID. this is a Header click on the header to alert its value 2. getElementsByTagName () The getElementsByTagName () method

Some processing methods of JavaScript array Today's project, the use of a lot of array knowledge, here to do a record, learned a lot. a method for JavaScript to filter an empty array in an array. var tagvalue = [1, "", ""]; var realvalue =

$ (function () {function person () {var SAR = 6000; This.getsar = function () {return SAR; } This.setsar = function (Thesar) {SAR = Thesar; } Person.prototype.sleep = function () {alert ("Coding coding"); }

1. Constructor mode Simulates "class" with a constructor to refer to the instance object internally using the This keyword. Basic syntax: function class name () {this. property name;//Public propertyvar property name;//Private property/general

1. Safety of the primary type testThe native type of JS can be judged with typeof, but sometimes it will fail. For example, the typeof array returns not array, but object, and the old version of IE, which recognizes the function as object. Another

This is an example of using JavaScript to implement Cartesian product.Note: The set mentioned in this article refers to a mathematical set, not a set in ES6. The whole idea is as follows: the user passes in a two-dimensional array, each of which is

Javascript:The way JavaScript embeds pages1. Inter-row events (mainly for events)2. Page Script Tag embedding3. External IntroductionSecond, comments and variables:1, single-line comment://2. Multi-line Comment:/* */3. Variables:#弱类型语言, the type is