JavaScript

For the file download, can be said to be a very common topic, the front-end of many projects will have such a demand, such as the export of Highchart charts, online picture editing in the image preservation, online code editing code export and so on.

In IE6, IE7, we can use Document.frames[id].document to access the Document object in the IFrame Subwindow, but this is not in line with the standard of the writing, is also the unique method under IE, It is not available under Firefox, and Firefox

JavaScript does not have a special syntax to represent the private properties and methods of an object, and by default all properties and methods are public. Objects that are literally declared as follows:var myobj = { myprop:1,

1 false // true 2 false // true 3 // falseThe above code is the result of JS actual operation. So in js, = = is not reliable, because JS will automatically convert the type.This is not the focus of this essay.Here's the key. How to make a very

HTML5 's audio tag provides us with the ability to control sound, but using native HTML5 to develop sound or music-related items is still a hassle, and in this article we'll cover 5 JavaScript audio libraries that help you simplify your development.

Rewrite document. write to load js advertisement (Supplement) without blocking, document. writejs Loading javascript without blocking has a great effect on page performance optimization, which can effectively reduce the blocking of page loading by

Node. js emitter. emit method instructions, node. js Use Cases Method description: When an event is triggered, several optional parameters are passed to the parameter table of the event listener. Syntax: Copy codeThe Code is as follows:Emitter. emit

Use jQuery to share star rating code and jquery star rating code In the previous article, we used Native js to achieve star rating. The coverage may not be very wide. Now we provide a jquery-based star rating. Copy codeThe Code is as follows: jQuery

Let's talk about javascript prototype inheritance and javascript prototype inheritance. In the real sense, Javascript is not an object-oriented language and does not provide traditional inheritance methods, but it provides a prototype inheritance

Delete the URL text box and wordpress form in the wordpress Comment Form The original effect is as follows:   To remove this link form, you can find the corresponding form code in the comments. php file and delete it. But now you only need a very

Share 20 jQuery Lightbox plug-ins for Beautifying websites and jquerylightbox The jQuery Lightbox plug-in allows you to show elegant images, videos, and other content for your website and applications (use mode window ). If you are a developer, you

Double exclamation point in JavaScript !! Function example introduction, javascript example !! It is generally used to forcibly convert the following expression to a boolean data (boolean), that is, it can only be true or false; We often see this

Use console. table () to debug javascript and javascriptconsole Use CONSOLE. LOG () to display Arrays Imagine that you have constructed the following ArrayVar versions ages = [{Name: "JavaScript", fileExtension: ". js "},{Name: "TypeScript",

JQuery customizes jQuery. extend () and jQuery. fn. extend () method. jQuery. the extend () method can create global functions or selectors, whereas jQuery. fn. the extend () method can create jQuery object methods.For example: JQuery. extend

For example:12345 format to 12,345.0012345.6 format to 12,345.6012345.67 format to 12,345.67Leave only two decimal places.After returning, I wrote a Formatting Function. The number of decimal places can be controlled and automatically rounded. The

Copy codeThe Code is as follows: 2. ParametersCopy codeThe Code is as follows:AltField: String :''Synchronize the selected date to another domain, and use altFormat to display date strings of different formats.Initial: $ ('. selector').

Processing cookies in JavaScript is complicated because of its well-known interface, namely the doucmentcookie attribute of BOM. This attribute is unique in that it will show different behaviors in different ways. When used to obtain the property

Application Scenario: the Canvas can generate the JPG tag based on the product information read from the database. However, the default resolution (DPI) of the JPG image is 72, which is too low, as a result, the printed image will be blurred and the

Today, we need to dynamically display the current time and switch the 24/12-hour system. I remember I wrote a 24-hour system a long time ago, but I couldn't find it, so I wrote another one, copy and paste a copy if you need it. A simple function is

This article is based on the kraken-js0.6.1 version on how to use kraken-js can go to see the official site of the use of documentation click here. Kraken-js is based on express. It aims to allow engineers to focus more on code logic and less on