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javascript| Tutorial Using OLE Automation in JavaScriptIn the previous tutorial we have mentioned OLE Automation in JavaScript. In the tutorials in this section, we'll discuss how JavaScript leverages the power of automation to extend server-side scripting.In fact,

This article is the official HTML5 training course for h5edu institutions, mainly introduces: JavaScript intensive Tutorial--basic processing function of arrayArray.push (); add element at the end of the array and return the array to the new length Array.pop (); Delete the last element, decrease the length of the array, and return the last element Array.unshift (); add an element before the array Array.spl

This article is the official HTML5 training course for h5edu institutions, mainly introduces: JavaScript intensive Tutorial--Regular expression backtrackingThe following example shows the process of processing a regular expression:/h (ello|appy) hippo/.test ("Hello there,happy hippo");This regular expression "Hello Hippo" or "Happy Hippo". At the beginning of the matching process, an H is first found, and t

[Web API series tutorial] 3.6-practice: process data (create a JavaScript client) In this section, you will use the HTML, JavaScript, and Knockout. js libraries to create clients for applications. Follow these steps to create a client application:1. display the books list2. display detailed information about the book3. Add a new book The Knockout. js library uses

initial data.Getallbooks ();}; Ko.applybindings (NewViewModel ());In knockout, the observable class enables data binding. When the content of observable changes, observable notifies all data-bound controllers, so they are able to update themselves. (whereas the observable class is a observable array version.) Starting with this, our view model has two observable:1, books Maintain books list.2, error contains errors if the AJAX call failsThe Getallbooks method generates an Ajax call to get the b

I. Handling events (i)Events ( Event ) is the action that the user performs when the page is accessed. Submitting the form and moving the mouse over the image are two events. When a browser detects an event, such as a mouse click or keystroke, it can trigger the JavaScript object associated with the event, which is called the event handler ( EventHandler) or a listener. . 1. Set HTML tag properties as event handlers (avoid use)( 1 ) to directly JS c

Javascript| Tutorials | random | show Use JavaScript to randomly display pictures Sometimes you can see some of the changes displayed on some websites, except that you can use Flash to make Of course, you can also use this section of the tutorial introduced the method to achieve OH. All right, let's start with our creations. We can add the following

Javascript Tutorial: go deep into the PopUp object The company asked me to add the prompt function on an office system. I have studied for a long time and tried many methods. use window. the prompt is displayed on a regular basis, but the customer is impatient to say that the pop-up window is too complicated. so I came up with the CreatePopup () method, but the problem is that since it is an office system,

This article ish5eduAgency officialHTML5 Trainingtutorials, the main introduction:JavaScript Intensive Tutorials--Object value passing and reference passingFunctionsetname (obj) {obj.name= "Tom";//Before execution, the Name property of obj and person at this time is undefinedobj1=new Object (); obj1=obj;//declares a global object, then obj, obj1, and person should be the same object at this time }//setname function is executed, the Obj object is destroyed and the remaining objects are still pres

javascript| Tutorial Using JavaScript in HoTMetaL 2. How to add a button to the menu barThere are several ways to run JavaScript macros. The first approach is to link the button of the toolbar to the macro and add the button to the HoTMetaL user interface, as we've already said in the previous section. The first metho

javascript| Tutorial Use JavaScript to produce mouse-move-past pop-up windows This tutorial describes the design of a window that pops up when you move the mouse over the picture. This pop-up window is a standard page and you can set it to size. First, add the following code to the Header tab of the page: So how d

";break;case5:x="Todayit'sFriday";break;case6:x="Todayit'sSaturday";break;} X running result: Todayit'sSaturday Default keyword Use the default keyword to specify what to do when the match does not exist: Instance If today is not Saturday or Sunday, the default message will be output: varday=newDate().getDay();switch(day){case6:x="Todayit'sSaturday";break;case0:x="Todayit'sSunday";break;default:x="LookingforwardtotheWeekend";} Running result of x Todayit'sSaturday The above is the content of the

JavaScript: Pay attention to the test method of the RegExp object in JavaScript. Javascript tutorial The RegExp object in javascript is used for operations related to regular expressions. This object provides a method test to determine whether a string meets a certain patter

Timing of JavaScript advanced tutorial (lesson 3) events and browser recognition With the increasingly rich JavaScript, we can develop more and more complex applications. In the last course, we learned how to use JavaScripts to write Cookies. Today we will learn how to add the timing function. The time-based timing function is very useful in browsers, and can

HTML Dom tutorial 49-javascript number object In JavaScript, numbers are a basic data type. Javascript supports the number object, which is the packaging object of the original value. When necessary, JavaScript will automatically convert between the original data an

" (x==y) in the strict comparison operation,=== is the identity of the operator, while checking the expression value and type, the following if conditional statements return false:var x=10;vary=;if (x===y) This error often appears in the switch statement, The switch statement is compared using the identity calculation character (= = =): The following instance executes alert popup: Varx=10;switch (x) { case10:alert ("Hello");} The following instances do not execute because of type inconsistency a

viewing CPU execution time and memory consumption:This is not familiar, do not say more, or please refer to the end of the link.Audits label pageThis is useful for optimizing front-end pages and speeding up page loading (quite with YSlow):Click the Run button, you can start analyzing the page, you can see the analysis results are finished:It can even analyze what CSS is not being used in the style sheet on the page:Console tab pageIs the JavaScript c

PhantomJS quick start tutorial (WebKit for JavaScript APIs on the server side) and phantomjswebkit PhantomJS is a WebKit-based server-side JavaScript API. It fully supports the web without the support of the browser. It is fast and native supports various Web standards: DOM processing, CSS selector, JSON, Canvas, and SVG. PhantomJS can be used for page automation

How to dynamically load events in the Javascript tutorial This article mainly gives a detailed summary of several methods for loading events in js. If you need it, please refer to it and hope to help you. Some methods to dynamically load javascript events sometimes We often need to dynamically add events in JS, which involves browser compatibility issues. The fo

primarily performance-optimized, including viewing CPU execution time and memory consumption:This is not familiar, do not say more, or please refer to the end of the link.Audits label pageThis is useful for optimizing front-end pages and speeding up page loading (quite with YSlow):Click the Run button, you can start analyzing the page, you can see the analysis results are finished:It can even analyze what CSS is not being used in the style sheet on the page:Console tab pageIs the