JavaScript

This article mainly introduced JavaScript in the judgement of the word type of the most concise implementation method, this paper gives a number of methods to determine the integer, finally summed up a shortest, most concise implementation method,

The constructor function (Constructor functions) is defined in the same way as any other function, and we can use function declarations, function expressions, or function constructors (see previous essays) to construct function objects. The

Nanyi This article is very well written.Http://www.ruanyifeng.com/blog/2011/06/designing_ideas_of_inheritance_mechanism_in_javascript.htmlThe notes are as follows:It has been difficult to understand the inheritance mechanism of JavaScript language.

Javascript EmbeddedCommentsor/ * content * /Variable name assignment valueVar variable name = valueOutput modedocument.write ( variable name )Window.alert ( variable name )Arithmetic operatorsa++;a--Assignment operatorsString operatorsComparison

Output:Window It is an object that represents the current browser window objectWindow.document.write (); outputting content to the body tagWindow.alert (); is to pop a warning box to the browser's windowConsole.log (); is to output the data in the

Using JavaScriptLearning Essentials:1. Create an HTML page2. This set of tags is the main method for inserting JS into an HTML page. It mainly has the following properties:1.charset: Optional. Represents the character set specified by the SRC

1. HTML: Hypertext Markup LanguageCSS: Cascading Style SheetsWorld Wide Web ConsortiumDOM: Document Object ModelBOM: Browser Object modelDhtml:dynamic HTML (Dynamic HTML)2. JScriptJavascript->ecmascript3. JavaScript is a scripting language that

(1) Event Bubblingthe event stream of IE is called event bubbling, where the event starts with the most specific element (the node that is the deepest nesting level in the document) and then propagates up to the less specific node (document).(2)

prototypeImplements the object and the object inheritance, in JS the variable, the function, almost everything is the object, but the object has the _ptoro_ attribute, this property is the commonly said prototype, is uses to point this object the

Guide: I see this book has been several times, every time will find a new continent, applauded! In order to further study again, but also to make this book into my handbook. Keep a good record of what you need, so you can review it over and over

CSS Reset and cssresetWhy reset the default CSS of the browser? The browser performs "default settings" on the "tag". The default settings of different browsers exist.Difference. In many cases, the default settings of browsers are useless for our

How to Make height: 100%; take effect, height100 % Take EffectWhy is the height: 100%? when designing a page, you placedivElement, you want it to fill the whole window height, the most natural way, you will give thisdivAddheight: 100%;. However, if

Three methods for dynamically creating elements in JS (recommended) and three js Methods 1. dynamically create element 1 document. write () For example, output A li tag to the page The body label will be inserted, but this method is almost

The current time instance code is displayed on the JavaScript page in real time. Preface I have read the relevant content again this time, and I will summarize the points that need attention as follows: 1. PassgetDay()The number of weeks starts from

How to Implement database read/write splitting in Node. js sequencee I. Preface When building highly concurrent Web applications, in addition to the load balancing scheme adopted at the application layer, the database must also support high

Detailed explanation of parameter transfer of Applet, detailed explanation of parameter transfer of Applet The launch of applets will undoubtedly trigger another wave in the mobile Internet industry. Some people will question whether a small program

Select2.js drop-down box usage summary, select2.js drop-down box After using the Select2 plug-in for so long, you should also write an article to sum up. At the beginning, I felt that Select2 was not particularly useful, but I couldn't find a better

Detailed description of the WXDropDownMenu component and instance code of the applet, dropdownmenu The WXDropDownMenu component of the applet is described in detail. Here is a small example to help you learn and understand, Function: Applicable to

Three pop-up windows in javascript and javascript pop-up windows Three pop-up windows in js 1)Alert pop-up warning no return value --------- alert ('first line \ n Second line '); 2)Confirm () Select OK or cancel, and return t or f ---- var result =

Use Node. JS to send emails, and use node. js to send emails Step 1: Configuration First, install the nodemailer library. Npm install nodemailer // The latest version is installed by default. For more information about this database, see nodemailer.