JavaScript

1. Respect for object ownership? Do not add attributes for instances or prototypes;? Do not add methods to instances or prototypes;? Do not redefine a method that already exists.the best way to do this is to never modify the objects that are not

Implement chained invocation pattern by imitating jquerySometimes we need to call the method in a row like jquery, and this is what we're going to use. 　　var Deng = { smoke:function () { console.log ("smoke,cool!!"); return this;

+: addition of operator; connection stringAddition will automatically convert other types of values to strings, and then join operations!1 varA=1+2;2Console.log (' First: ' +a);3 vara=1+2+ ' 3 ';//calculate the 1+2 first and then connect to the ' 3 '

Http://www.jb51.net/article/48465.htm1. Converting numbers to stringsA. To convert a number to a string, simply add an empty string to it:Copy CodeThe code is as follows:var n = 100;var n_as_string = n + "";B. To make a number more explicitly

Array method: First, the array method has an array-prototype method, and there are methods that inherit from object objects. This is only a detailed description of the array's prototype method.(1) Join: Put all the elements in the array into a

The Confirm () method is used to display a dialog box with the specified message and confirmation and Cancel buttons.If the visitor clicks OK, this method returns True, otherwise false is returned.GrammarConfirm (str);Parameter description:STR: The

Inadvertently see fill this method, some puzzled, at first thought is someone else's custom method, later discovered that originally is not, JavaScript inside is really has this method, therefore specially studied under.The fill () method is used to

NodeListThe NodeList instance object is a class array object whose members are node objects, including the ChildNodes and Queryselectorall () method return valuesA dynamic collection is a change in the DOM structure that can be automatically

Using JavaScript in HTML elementsThe main way to insert JavaScript into an HTML page is to use the element. defines the following properties: type: Optional. Represents the content type (also known as the Mimi type) of the Footstep

Note: In JavaScript, the "." After the number The meaning of the operator is not deterministic. Because it can be either a floating-point flag or an operator that takes an object's properties. But the JavaScript interpreter took him as a sign of

In JavaScript, objects are data that owns properties and methods, which are values associated with an object, by actions that can be performed on an object. JavaScript implements object-oriented programming in a way called prototypes.

JavaScript Note BOM object (document type Object)Dom Object (Browser object)Variables are case-sensitive, multiple variables can be defined in the same row, middle use ', ' split JavaScript statements can be used at the end, or not, but

has been not understanding of the prototype and inheritance of JavaScript, referring to the JavaScript authoritative guide (sixth edition) and the JavaScript Advanced Programming (third Edition) of the knowledge of this point to do a tidy,

In object-oriented development, it is often the case to check object properties and Traverse object properties. JavaScript does not contain traditional class inheritance models such as Java and C, but instead uses the prototype prototype

Code:DOCTYPE HTML>HTMLLang= "en">Head> Metahttp-equiv= "Content-type"content= "text/html; charset=gb2312" /> 　　 title>Text highlightingtitle> style>. bg-red{Background-color:Red; } style>Head>Body> Divstyle= "margin:20px

Learning website:Http://www.w3school.com.cn/js/js_loop_for.aspJavaScript LoopsIf you want to run the same code over and over again, and the values are different each time, it is convenient to use loops.We can output the values of the array like this:

Use vue router-link to PASS Parameters and use the instance, vuerouter-link 1. Path:Http: // localhost: 8081/#/test? Name = 1 jump (id is a parameter) Use: this. $ route. query. id 2. Path:Http: // localhost: 8081/#/test/1 jump (Id is a

Vue component parent-child communication (3), vue parent-child The example in this article shares the code of the vue component's parent-child communication for your reference. The details are as follows: 3. Communication between components ($

Notice on the mint-ui loadmore component, mint-uiloadmore As follows: LoadTop () {this. $ store. dispatch ('getnewslist', {channelId: this. id, page: 0, size: this. size}); this. $ refs. loadmore. onTopLoaded ();}, For example, when performing a

More examples of rolling loading in vue and vue rolling Loading In the previous age of cutting-edge farming, we wanted to implement rolling loading more quickly. In vue, we had a little trouble. I recently studied it and made a simple demo, for your