JavaScript

This article translates the JavaScript Tutorial playlist of up master Kudvenkat on YouTubeSOURCE Address here:https://www.youtube.com/watch?v=PMsVM7rjupU&list=PL6n9fhu94yhUA99nOsJkKXBqokT3MBK0bIn this video we will discuss1.Javascript can appear in

Tag:htm    code    char    line Comment     line     def   cat   case   pop    JavaScript one, the form of JavaScript storage 1, there is a file 2, nested in the HTML file 3, the general JS code is placed on the bottom of the body tag, even if the

Since JavaScript is a weak type of language, type conversions are happening all the while in our code, so understanding the type conversion in JavaScript is critical to understanding how we know how JavaScript works.This paper mainly from the

After reading this book today, I finished the last comprehensive example. To tell the truth to gain a lot, finally understand what the front-h5 specifically doThe more you learn, the more ignorant it seems, this is really a truth. Post-planning:1,

BodyThe This and the function in JavaScript are closely related, so today I'll give you a detailed account of this: in the JavaScript function, this one comes out with a lot of dizzy, abstract concepts.Here I'll just say the core point-the this in

previously in the MU class network to learn a period of JavaScript, but the study is a number of relatively basic knowledge, recently in the Web and rookie tutorials and re-learn the JavaScript, belongs to the extension on the basis of the harvest.

CONST REG =/^ ([0-9]+) \. ([0-9]*) $/;//determine if it is a floating pointConst ISFLOAT =function(number) {returnreg.test (number);}//remove Decimal to IntegerConst FLOATTOINT =function(Head,tail) {//head:string tail:string //head and tail are

Understand the following diagram to understand JS prototype, prototype chain1, each object has its own prototype object, each object has a prototype property, which is a pointer to the object's prototype object, the prototype object holds a bunch of

First, the use of hook events to captureThere are 3 keyboard events:Keydown,keypress,keyup are pressed, press the not up, lift the keyboard.$ (document). KeyUp (function (event) { if (Event.keycode ==13) { $ ("#submit"). Trigger ("click");}

JavaScript uses a variable object to track the lifetime of a variable. The base type value is stored directly within the variable object, whereas the reference type value is stored as a pointer in the variable object, which points to where the

First, Member operators number.prototype.testfn=function () { Console.log ( this this Span style= "color: #000000;" >.valueof ());} var num = -1;num.testfn (); // true-1 (). TESTFN (); // false 22.testFn (); // uncaught

Summary of History objectsThe history object records the pages (URLs) that the user has browsed, and enables the browser to move forward and backward with similar navigation capabilities.Note: starting from the moment the window is opened, each

"Three ways to use JS"1, in the HTML tag, direct use of JS (do not promote the use of):Chestnut: Point Ben Does not meet the requirements of separation of content and behavior!2. Use the package JS code in the HTML page:Chestnut: The script tag

ECMAScript supports regular expressions through the REGEXP type. Using the following Perl -like syntax, you can create a positiveThe expressionvar expression =/pattern/flags;The patternsection can be any simple or complex regular expression that

Baffle.js is a JavaScript library designed to blur and uncover the text of DOM elements. These elements can be in the form of a CSS selector, a node list, or a single node. You can also pass a Selection object to the plugin.Online Demo Download

CharAt (n)//returns the character of the specified position (n)　 　　　　var str= "ABCDEFGE";Console.log (Str.charat (3)); Output dIndexOf (s,n)//Returns the position of the s first word backward from the position of n　　　　var str= "ABCDEFGE";Console.log

JavaScript as an object-oriented language, understanding of objects, prototypes, closures, module patterns and other technical points for becoming a qualified JavaScript programmer is very important, for many years did not write a blog, today to

Previous wordsIf something is like magic, it means seeing the dawning of new things, and any technology that is advanced enough is no different from magic.JavaScript, like Magic, is a vibrant, easy-to-use language and a language with many complex

When a text overflow occurs, three vertices are omitted at the end Sometimes we have this requirement: when the text content is too large and the width exceeds the parent container, three dots are displayed at the end, which indicates that something

CSS implements simple code for hovering the cursor infinitely to the lower-level display, css lower-level *{ margin: 0; padding: 0; } ul,li{ list-style: none; }