JavaScript

From Manfredhu Blog: http://www.manfredhu.com/2016/04/02/15-veryGoodForUsing/ 1. Use reduce to count the number of distinct words in an arrayvar arr = [ Span class= "hljs-string" > "Apple" , "Orange" , , , " pear ", " Orange "]; function

Commonjs/nodejs implementation Variables provided by the node. JS context Require: a function that refers to a dependent module, the dependent module is referenced as an object, can consume the provided methods and variables, and

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Determine the status of the phone screen:1 //determine the status of the phone screen:2 3 functionhengshuping () {4 if(window.orientation = = | | window.orientation==0){5Alert ("Vertical screen state! ");}6 }7 if(window.orientation = = | |

function Jquery () { this.name = ' YSR '; This.sex = ' man '; return { x:this, age:26 }}var b = new Jquery (); b = = {x:jquery, age:26}//b.x = Jquery; B.x.name = ' YSR ';//b.x.sex = ' man 'var B = Jquery ();b.x =

JavaScript Language Essence notesMastering every feature of the language can make you pushy, but it is not recommended, because some of the features may cause more trouble than they are worth. As the book says, bad material does not carve out good

Recently busy, no time to update the blog, and so busy will be finishing an article using Angularjs to build a medium-sized single-page application (SPA) articles, look forward to! Occupy a hole first.There are many kinds of algorithms for array

First, what are the browser objects?The main browser objects are: History object, location address object, Document object, Window Object Browser object,Navigator object (information of client browser), screenobject (Information on the client screen)

The dataset is the central concept of ADO. Datasets can be treated as an in-memory database, which is a separate collection of data that is not dependent on the database. The so-called independence, that is, even if the data link is disconnected, or

1, the definition of the function of JavaScript species:@ There are two ways to define a function, one to be anonymous and one to assign to a variable. @ When you set parameters to a function, you can pass in a number of arguments and then refer to

The recent study of JavaScript callback functions, the learning experience of their own collation, not necessarily correct.callback function Concept: A callback is a function, that is, passed as an argument to another function and are executed after

1 /**2 * Type Conversion3 *4 * JavaScript Data type5 * 1. Different data types6 * String7 * Number8 * Object9 * BooleanTen * Function One * A * 2. Object Type - * Object - * Date the * Array - * - * 3. Data types that do not contain any values - *

The knowledge points involved:1, Onmouseover,onmouseout2. Dom Getelementbytagname3, the new node element createelement; New Document Study No. name Operations xh001 Wang Xiaoming Delete xh002 Liu Xiaofang Delete About tables--adding deleted

JavaScript is the most Popular front-end development programming language. It provides web developers with the ability to design Web applications with rich functionality and a clean user interface. The JavaScript framework makes the design of Web

Web page Visible area width: document.body.clientWidthWeb page Visible Area height: document.body.clientHeightWeb page Visible Area width: document.body.offsetWidth (including edge width)Web page Visible Area High: document.body.offsetHeight

First, the positive to find factorial function factorial (n) { var product = 1, i = 2; while (I n) { product *= i; } return product; } Alert (factorial (4)); Second, the inverse to find factorial

I will briefly talk about my understanding of the circle in htm and css ., About htmcss In the past few days, we have found that many border images require rectangular rounded corners or directly draw a circle. The following is an example of how to

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Use the Sticky component to implement the tab navigation and scroll navigation with sticky effect, stickytab The sticky component is usually used in a navigation bar or toolbar. When a webpage is rolling in a certain area, the elements such as the

JQuery toggle, instead of jquerytoggle The specific content is as follows: $('.back_left