learn javascript for unity

Original: Learn JavaScript from the beginning (vii)--functionFirst, returnThe function stops and exits immediately after executing the return.return value, with return;Here are two examples:1 function sum (NUM1, num2) {2 num1= num1 + num2; 3 return NUM1; 4 }56 var result = SUM (5, ten); 7 alert (result);//15function sum (NUM1, num2) { Num1= num1 + n

Learn JavaScript with Demopu (concat function)Definition and usageThe Concat method can concatenate two or more arrays together to form a new array.Grammar Concat(array1,array2,......,arrayn) Parameters Description Array1 Necessary. The parameter can be a specific value, or it can be an array object. can be any number. Example

I have been in touch with jQuery for a long time. I have too many questions about its implementation. I only know what it is, and I have no idea about its essence. Sadly! Therefore, it is necessary to study the principles. The Ancients "Teach fish, it is better to teach fish". Without a teacher, they can only learn "fish" by themselves. Let's start with something simple! The following code is the most familiar, but do you know why? Why is the jQuery o

The Ancients "Teach fish, it is better to teach fish". Without a teacher, they can only learn "fish" by themselves. Let's start with something simple! The following code is the most familiar, but do you know why? Why is the jQuery object introduced by adding the code to the page. Copy codeThe Code is as follows: (function ($ ){ // Function implementation code }) (JQuery ); I started from here! Programmers all know how to google and baidu. The same is

This writer is a member of the Peter Rybin,chrome developer tools team.In this article, we'll use Chrome's developer tools to learn two important concepts in JavaScript, "closures" and "internal properties."Closed Package The first thing to say is one of the most famous things in the closure (closure) –javascript. A closure is a function that uses an external var

The Ancients have "given the fish, as the award of the fishing", without teachers, they can only learn "fishing". Let's start with a simple one! The following code is the most familiar, but do you know why it's written? Why add this code to the page, the jquery object has been introduced. Copy Code code as follows: (function ($) { Implementation code for the function }) (JQuery); That's where I started! Programmers know how t

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given property in the current object instance, rather than in the prototype of the instance. where the attribute name (PropertyName) as a parameter must be specified as a string (for example: O.hasownproperty ("name"))isPrototypeOf (object)--Used to check if an incoming object is a prototype of another objectpropertyIsEnumerable (PropertyName)--Used to check whether a given property can use the For-in statement to enumerateToString ()--Returns the string representation of an objectValueOf ()--R

As a front-end worker, you should be aware of some JavaScript development history, JavaScript implementations, and versions. The basic concepts include syntax, keywords, variables, data types, operators, statement controls, and functions, and they are basically similar to the other languages we learn, C + +, Java, C #, and so on, but there are subtle differences.

processing, which means that when we start the request, we tell them to call our functions when they are done. In practice, the onReadyStateChange event handler also has to consider the failure of the request, where we assume that the XML file exists and can be successfully loaded by the browser. In this example, the asynchronous function is assigned to the onReadyStateChange event, so it is not executed immediately. Finally, the second Console.log statement executes first because the callback

memory, memory consumption is very large, so can not abuse closures, otherwise it will cause the performance of the Web page, in IE may cause memory leaks. The workaround is to remove all unused local variables before exiting the function.2) The closure changes the value of the inner variable of the parent function outside the parent function. So, if you use the parent function as an object, and the closure as its public method, and the internal variable as its private property (private value),

, memory consumption is very large, so can not abuse closures, otherwise it will cause the performance of the Web page, in IE may cause memory leaks. The workaround is to remove all unused local variables before exiting the function.2) The closure changes the value of the inner variable of the parent function outside the parent function. So, if you use the parent function as an object, and the closure as its public method, and the internal variable as its private property (private value), be car

JavaScript is my university to do website interest, plus a year to maintain the company's JavaScript-related framework.By the way, review your own methods and techniques for learning JavaScript and share them with your friends who need them.1, base base, Compatibility 2, Dom Dom Operation 3, Ajax Ajax principle 4, jquery implementation principle, tripartite Libra

puzzle, like groovy to a DSL. I will record and discuss some of the language features, but will not discuss the likely important but trivial parts of most syntactic sugars. If it's just a pure study note that's boring, it's better to write it as a spit. I fought from Java and JavaScript to Haskell and groovy, and for these four languages, a feature is a feature-by-landscape comparison, such as standing at the angle of the type system, weak type, st

Today, I write this article, because of being asked questions, a lot of things although have been learned to read, but there is no real understanding??? In order to learn better, I wrote this summary, of course, this article is only a document. Just a tutoring role.Some people say JavaScript is difficult, but this is H5 development of the basic language, let us cross the threshold together ....

Closures, is an important concept in JavaScript, for beginners, closures are a particularly abstract concept, especially the ECMA specification to the definition, if there is no actual combat experience, you can not understand it from the definition. Therefore, this article does not have a large description of the concept of closures, directly on the dry goods, let you learn to close the pack minutes!1 Clos

Closures are a unique concept in JavaScript, and for beginners, closures are a particularly abstract concept, especially the definition given by the ECMA specification, and it is difficult to understand it from the definition without actual combat experience. Therefore, this article does not have a large description of the concept of closures, directly on the dry goods, let you learn to close the pack minut

Original: Learn JavaScript from the beginning (10)--garbage collectionFirst, garbage collection1.1javascript garbage collection mechanism:Automatic garbage collection, the execution environment is responsible for managing the memory used during code execution. In languages such as C and C + +, a basic task for developers is to manually track memory usage, which is a source of many problems. When writing

Easy to learn JavaScript-Part 1: Understanding the let statement and javascriptlet The let statement allows you to create block range local variables in JavaScript. Let statements are introduced in the ECMAScript 6 standard of JavaScript. Before learning about let statements, we recommend that you first view the Ignite

the function directly without adding to reference 28: Multiple pairs like sharing the same event: Fourth chapter: C#.net Grammar Foundation In this chapter, you will learn some of the following 1: The choice of writing asp.net language 2:vs.net 2005 Interface Tips 3: How to add server-side code to the page 4: How to import namespaces in a page 5:c#.net Grammar Basics 6: Dynamically adding JavaScript to