IONIC is currently the most promising HTML5 mobile application development framework. Build applications through SASS, which provides many UI components to help developers develop powerful applications. It uses the JavaScript MVVM framework and AngularJS
Let’s talk about logic and (&&), it can understand the first level from three levels, the simplest is the logical and the simplest, that is, when the lvalue and rvalue are true, return true, both sides are false or one side of the values are fasle
Image ping: The image can be loaded from any URL, so setting the src of img to the URL of other domains can achieve a simple cross-domain. You can use onload and onerror events to determine whether the response has been received var img=new Image();img.on
The examples in this article share with you the effect of js to achieve image switching for your reference. The specific content is as follows:<div id="box"><div id="img_box"><img src="../raw/b1.jpg" >
[Problem] When developing WeChat pages, the jump between each home page is completely done through the a link, but it jumps back and forth a few times. When jumping back to the home page from other home pages again, a jump loading progress bar appeared on
arguments defines that all functions have their own arguments object, which is used to store the parameters it actually receives, without being limited to the parameter list defined when the function is declared. It is not an array but is similar to an ar
1. Simple method, regardless of it, just do it like this: document.createStyleSheet().cssText = 'Tag {color:red;' + // This comment only helps understand in the current JS and will not be written to CSS'width:3
Currying origins and the name of mathematician Haskell Curry (the programming language Haskell is also named after him). Curry is also commonly known as partial evaluation. Its meaning is to pass parameters to a function step by step. After each parameter
Reference Types Reference types are data structures used to organize data and functions together. It is also often called a class, but this title is not appropriate. Although ECMAScript is technically an object-oriented language, it does not have the basi
We know that after object-oriented development, almost all languages can be based on objects "once overnight", and JavaScript is also an object-based language. The behavior of a user on the browser is called "events", and a series of a
1. Use js to calculate 12.32 * 7 What is the result? Answer: 86.2400000000000001 Why does this problem occur? How to solve it? There is a bug when js deals with multiplication and division of decimals. The solution can be: turn the decimal into an integer
The introduction if statement should be a statement that programmers use more often. Many times, if judgment is required. If statements generally use double signs to determine whether the two elements before and after are consistent. If they are consisten
In fact, this is a cliché issue. There are a lot of articles about this. Actually, I thought I had figured it out long ago, but yesterday, I still had a little doubt during the project. I thought about an article I had collected and read in JavaScript wee
