JavaScript

Recently, a customer asked to add text watermark effect on the webpage picture, and the content is obtained from the text input box of the current webpage in real time, studied a half-day, in the net also refer to a lot of friends of the method,

A private variable: a property and method defined inside a function is called the function's private property and method common variables: Objects and methods created inside a function called this function are common properties and methodsPrivileged

In the software system, sometimes faced with the creation of "a complex object", it is usually made up of the sub-objects of each part with certain algorithms, and because of the change of requirements, the parts of this complex object often face

OverviewThe observer pattern is also called publish-subscribe mode (publish/subscribe), which defines a one-to-many relationship that allows multiple observer objects to listen to a target object at the same time (for ease of understanding, the

I. What is a typeJavaScript does not have a class concept. However, there are still two types: primitive type and application type.The original type is saved as a simple data value, and the reference type is saved as an object, essentially pointing

JavaScript for simple provinces and cities (nba Edition) linkageDOCTYPE HTML>HTML> Head> title>JavaScript for simple provinces and cities (nba Edition) linkagetitle> Metahttp-equiv= "content-type"content= "text/html; charset=utf-8">

Draw a triangle arrow pattern with pure CCS and draw a triangle with ccs Draw a triangle arrow with CSS. With pure CSS, you only need a small amount of code to create triangle arrows compatible with various browsers!  CSS code: /* create an arrow

Bootstrap optimizes Site Resources, response images, and conveyor belt usage details 3, Optimize Bootstrap Site Resources, complete Bootstrap response images, and enable the conveyor belt to support gestures. The details are as follows: A. Optimize

Examples of JavaScript Regular Expressions and examples of Regular Expressions I don't need to talk much about it. I will simply dedicate the code summarized and summarized over the years to you.

Mini-program WXSS, mini-program wxss Series of articles: Mini-program tutorial-WXSSReferences to mini-program tutorialsEvents of mini-program tutorialsSmall Program tutorial TemplateList rendering of Applet tutorialsConditional rendering of

Detailed description of the mini-program audio component instance, the mini-program audio Audio Playback has been encapsulated well! You only need to set attributes! (Using method and data together) Main attributes: Wxml play suspend set

Detailed explanation of mini-program video components and instance code, mini-program video There is no difference between the video playback component and the image loading component. Important attributes: Wxml click to display the video

Javascript learning notes _ basic syntax, type, variable, and javascript learning notes Basic syntax, type, and variable Non-numeric values: (since Infinity and NaN are not equal to any value, including themselves) 1. Use x! = X. true is returned

Javascript achieves the image scroll effect on the left and right (Auto scroll, left and right buttons available) and javascript scroll The example in this article describes how javascript achieves image scrolling between the left and right sides.

Bootstrap mode box call function implementation method, bootstrap Mode You need to embed a pop-up window in the page to display the form information when you are working on a project. In fact, many jquery plug-ins can be implemented in this pop-up

Installation tutorial for mini-Programs (formerly called App No.) Development Tool 0.9, development tool 0.9   The full name of Applet is public platform ·Applet, formerly known as the public platform ·Application No ((Application

In-depth analysis of node. js asynchronous API and its limitations, in-depth analysis of node. jsapi Reasons for using asynchronous APIs The concept of Asynchronization first becomes popular in Web because Javascript is executed on a single thread

JavaScript inheritance details and sample code, and javascript sample code If you cannot understand some knowledge at the time, you can put it down for the moment. You may understand it later. A few months ago, with "JavaScript advanced programming (

In AngularJS, compare whether two arrays are the same and angularjs two arrays. Javascript cannot directly use = OR = to determine whether two arrays are equal, no matter whether they are equal or full, the following two lines of JS Code will

JavaScript to convert HTML Escape characters, jshtml escape characters // Remove the html Tag Function removeHtmlTab (tab) {return tab. replace (/] +?> /G, ''); // delete all HTML tags} // Convert normal characters to escape characters function html2