JavaScript

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ObjectiveJavaScript is a weakly typed language, which is much closer to Python and Perl than it is for Java and C. So the small partners who are accustomed to the strong type language see some alternative writing is quite normal;Some things are not

The following two ways to put two pages in the same folder, is a sibling file.The HTML link is defined by the tag.(the page naming method here is not accurate, it needs to be named according to specific circumstances)Second, another link is

Each of the values of JavaScript is a data type of some kind.In the ES5???, data type is divided into six kinds: five kinds of raw data types, the type of data types.In the original data type?, divided into five categories:Number (numeric) type:

Some common compatibility issues in JavaScript are organized1) scroll bar: Document.documentElement.scrollTop||Document.body.scrollTop2Gets the style compatible Functiongetstyle (DOM, stylename) {returnDom.currentstyle?Dom.currentstyle[stylename]

Basic Solutionsfunction palindrome (str) { return str.replace (/[\w_]/g, "). toLowerCase () = = = str.replace ( /[\w_]/g, "). toLowerCase (). Split ("). Reverse (). Join (');}Intermediate Code Solutionfunction palindrome (str) { =

The following two ways to put two pages in the same folder, is a sibling file.The HTML link is defined by the tag.(the page naming method here is not accurate, it needs to be named according to specific circumstances)Second, another link is

 Recently, when reviewing JavaScript, see the settimeout function. I think of the time when I saw the setTimeout () in a book. The interval between the execution of a callback function in a read () is not a value that is set later. Had not thought

JS is a functional language, because the power of JS depends on whether it is used as a functional language. In JS, we usually use a lot of functional programming styles. Functional programming focuses on: few but good, usually no side effects, and

1:if......else ...is to execute certain statements according to certain conditions, without executing certain statements. if () {}else if () {}else if () {}else{}else you can only have one, and be sure to put it in the end. Indicates that all

CSS variable and cssvariablePrevious For a long time, CSS has no variables. To use CSS variables, you can only use pre-compilers such as SASS or LESS. After the new draft is published, it is no longer an illusion to define and use variables directly

Understanding and application of three positions in CSS format and layout, css layout The first type of location relationship: position: fixed locking position (relative to the entire browser), usually in the lower right corner of each major

CSS deep understanding of Study Notes padding and csspadding 1. Relationship between padding and container size 　　For horizontal block elements: ① When the padding value is exposed, the size will be affected; ② If width is not auto, padding affects

1-1, test81-1 We need to use bootstrap, The frontend framework of Twitter, to implement this task. First, put the psd diagram. Uploading these images is pretty big. Therefore, I used office picture manager to compress images. Method: alt + p + o,

Git bash uploads code to github, gitbash uploads github Today, the notebook of the old man started to get stuck. I decided to reinstall the system. By the way, let's review the usage of git local commands. 1. Configuration 2. Skip normal

CSS compatibility details, css detailsPrevious For front-end engineers, compatibility is a problem that they do not want to face. A few years ago, the compatibility of Low-version IE browsers was generally handled. In recent years, with the

[Http] What is the difference between post and get requests? postget requestsTwo common HTTP request methods: post and get: Request from the specified resource. The data length is limited (2048 characters) and can be cached and retained in the

FAQs about how to create a webpage navigation bar Unordered Lists are very useful tags frequently used in html page layout. However, when using Unordered Lists, newbies often encounter problems in horizontal layout, the author provides several

HTML specification and html encoding SpecificationPrevious HTML is a hypertext markup language used to describe the structure of a webpage. HTML standards can make HTML code styles consistent, making HTML easier to understand and maintain. This

Webpage Structure and Performance principles, and webpage Structure Performance principles The structure and performance principles of web pages are as follows: First write code by structure and Semantics Then set the CSS style Reduced HTML and