JavaScript

What is a homologous strategy? The same-origin policy is a complete security restriction on JavaScript code that can manipulate those web content. This strategy can work when a Web page uses multiple IFRAME elements or opens multiple forms.

Date: 2015-12-04 JS prototypes: Closures: Closures This is a rather complicated thing ... Now preliminary understanding;http://segmentfault.com/a/1190000000652891Closures have three features: 1. function nesting function 2. External parameters

Date: 2015-12-06 Event Propagation:1. Capture phase2. Operation Stage3. Foaming StageCookie and client persistence:;HTML5 introduced the Web application cache, Localstorage, sessionstorage;Using XMLHttpRequest:1. Create a XMLHttpRequest object;2.

Date: 2015-12-05 Browser location and history:Replace will not show history, location will;The History object script is not actually accessible, but supports three methods: Back (), foward (), go ();Open window: window.open () is always

1. Event propagation mechanism: event bubbling, event capture.   2. Register event handler mode: set the HTML tag property as an event handler for the event handler property of the document element, with the name consisting of "on" followed

Js implements ctrl + v Pasting and uploading images (compatible with chrome, firefox, and ie11 ), We have more or less used a variety of Rich Text editors, one of which is very convenient. Copy an image and paste it into the text box. This image is

Jquery implements textarea adaptive height in the text box, jquerytextarea The default text box in the browser cannot be increased based on the increase in content. It can only have a fixed height with a scroll bar, and the experience is not very

The javascript time sorting algorithm implements the countdown Effect of flash sales and the javascript algorithm. Creating an activity page second kill list page requires a time to sort the algorithms. After thinking about it for a long time, I

Common JavaScript string methods, javascript strings Retrieve class: 1) dynamic method: CharAt: gets the character at the specified position of the string. (Parameter: Specifies the character location to be obtained) 1. Negative numbers are not

JavaScript File multipart upload and javascriptfile multipart upload HTML Js Method Var fileSplitSize = 1024*1024; var start = 0, end = 0; var I = 0; // file segment upload function chunk_upload (button) {var xmlhttp = new XMLHttpRequest ();

Use Filters in Angularjs for details, angularjsfilters The Filter function is to receive an input, process it through a rule, and then return the processed result to the user. Filters can be used in templates, controllers, or services, and a Filter

Javascript html5 canvas enables you to drag a map of China in a province, html5canvas This article provides an example of how to implement a map of China in the provinces where html5 canvas can be dragged for your reference. The details are as

Examples: Examples of JavaScript instance objects and prototype objects, and javascript instances First, declare that each object in javascript has a constructor attribute and a prototype attribute. Constructor points to the object's constructor,

Basic tutorial on JavaScript operations on html dom nodes, javascriptdom Because DOM exists, we can use JavaScript to obtain, create, modify, or delete nodes.NOTE: The elements in the example below are all element nodes.Get Node Parent-child

Set a style for select and select Problem: When adding a drop-down menu for a form, sometimes there is no special requirement on the menu style, that is, the width and height of the select element need to be modified, but it is well known that the

CSS exercises-separated by diagonal lines in the navigation bar-use pseudo elements, css Start to cut the first image. The first problem is that the top navigation bar is separated by a diagonal line. The idea is to use a pseudo class: before or:

JQuery's method for controlling frames and frame page JS, jqueryframes This article describes how jQuery controls frames and frame page JS. We will share this with you for your reference. The details are as follows:

Basic jQuery-based webpage Audio and Video Player jPlayer tutorial, jqueryjplayer JPlayer introduction: If you want to play background music on a webpage, you don't want to use the html Tag, because it can only be played after all the music is

Implementation Code of the Bootstrap multi-level navigation bar (cascade navigation) and the bootstrap navigation bar On the bootstrap official website, navigation is at most two levels, which cannot be achieved at two or more levels. Uncle found

Js implements array Bubble sorting, fast sorting principle, js Array This article shares the implementation principles of js array Bubble sorting and quick sorting for your reference. The details are as follows: 1. Bubble Sorting: Take a single