learn javascript for unity

　　JavaScript Data TypesA string (string), a number, a Boolean (Boolean), an array, an object (objects), null (NULL), undefined (Undefined).var carname=new String;var x= new number;var y= new Boolean;var cars= new Array;var person= new Object;javascript-learn a _var

Every day, Bootstrap is required to fold. This article explains the Bootstrap fold operation. If you are interested, you can refer to this article to learn about the JavaScript plug-in-fold. 1. Transition Effect About transition effectFor the simple transition effect, you only need to introduce transition. js and other JS files. If you are using a compiled (or compressed) bootstrap. js file, you do not n

(); T3.sayhi ();Obj3 inherits Obj2,obj2 inheritance Obj1. When our Obj3 instance object accesses Sayhi, we go to Obj3 's instance object and look for the Sayhi method (not found), then go to the OBJ3 prototype (not found), then go to the parent OBJ2 prototype (not found), and then go to the OBJ1 prototype (found). The path to finding is the prototype chain. This is a learning record, not a tutorial. You can point out mistakes, but don't be mean. Original link: http://haojima.net/zh

= "false" // initialize hide. If yes, click the button to trigger, the first click cannot be displayed. The second click is displayed. Data-show = "false" // load index.html to the container once href = "index.html"Of course, you can also set it directly in JavaScript.// Declare $ ('# mymodal'). modal ({show: true, backdrop: false, keyboard: false, remote: 'index.html',}) through jQuery ',});3. MethodIf the pop-up window is not displayed by default,

; - ahref= "#none">This code is wrong, because the variable i has never been back locked livea>BR/> - ahref= "#none">This is available because he is inside the self-executing function expression closurea> - Body> - HTML>Simulating private variables1 function Counter (start) {2 var count = start;3 return {4 increment:function () {5 ++count;6 },7 getcount:function () {8 return count;9 }Ten } One } A - var obj = Counter (ten); - the obj.increment ();//c

interior divide a new constructor init? jquery uses the Init method on the new prototype prototype as the constructor, so the prototype chain method of Init is the method of the instance, so jquery divides 2 different invocation modes by 2 constructors, one static and one prototype.method is shared, and the instance method is taken from a static method, 2 constructors are completely isolated, how do you handle this?Look at the scenario that jquery gives:The finishing touch of a init.prototype =

, it will first look for the football in its own closure, and if not, go to house. Go up one layer at a level until you find it. Of course, this example may not be appropriate. But at least it shows the relationship between scopes and closures.Again, closures are a private scope that exists when a function is created, and can access all of the parent scopes. So, theoretically, any function is a closure!Swift a little bunny.Links: Https://www.jianshu.com/p/6f5833e261acSource: PinterestThe copyrig

, you can also use square brackets notation. cat["lovely brother"]= "Tom"; The property name contains a space so you cannot access it by using dot notation. Useful when property names are dynamic (property names can be determined only at run time), as described in the for...in loop below Iv. enumerating all properties of an object For...in cycle Object.keys (o) Object.getownpropertynames (o) 4.1for...in cycleThis method accesses the propertie

); }) RemoveEventListener () var btn = document.getElementById ("btn"); function info () { console.log (this.value); } Btn.addeventlistener ("click", info); Btn.addeventlistener ("click", Function () { console.log (this.id); }); Btn.addeventlistener ("click", Function Valueandid () { Console.log (this.value + "" + this.id); }); Btn.removeeventlistener ("click", info); Valid btn.removeeventlistener ("click", Function () { console.log (this.id); });//Invalid Btn.removeevent

the original function returned ; Return fn.apply (this, arguments); }; /* Analog data validation/ var validate = function () { if (username = = "") { console.log validation failed! "); return false; } return true; } /* Simulate AJAX submission/ var formsubmit = function () { console.log ("Submit!!! "); } Username = 1; Formsubmit = before (formsubmit, validate); Submit!!! formsubmit (); Username = ""; Formsubmit = before (formsubmit, validate

node. Please see:What's the good of being in trouble? Let's take a closer look at this bubbling node Click event, did you find out that we just took one of the outermost div elements through getElementById, and we only used one method ( though the logic in the method is more complex ). This is just 3 elements, what if there are 30 of them? Even hundreds? We define only the outermost elements, which reduces the number of DOM references ( which directly reduces the time it takes to retrieve the e

Original: Learn JavaScript from the beginning (vi)--statementOne, Conditional branch statement: ifBasic format:if (}else if (}else{}Execution process:Second, the circular statement2.1 Pre-Test loop statement: The exit condition is evaluated before the code in the loop body is executed.2.1.1 While statementBasic format:do {} while ( Execution process:2.1.2 For statementBasic format:for (}Execution process:2.

To engage in web development, do not know where to begin?JavaScript language but don't know how to step!The best way is to constantly do Web pages, write code, constantly look at other people's Code, research other people's Code!Practice JS with code every skill point: listen to more read more ask more write!Learn to System, you can also find a super-practical XXX code snippet, carefully grind!Keep track of

To engage in web development, do not know where to begin?JavaScript language but don't know how to step!The best way is to constantly do Web pages, write code, constantly look at other people's Code, research other people's Code!Practice JS with code every skill point: listen to more read more ask more write!Learn to System, you can also find a super-practical XXX code snippet, carefully grind!Keep track of

To engage in web development, do not know where to begin?JavaScript language but don't know how to step!The best way is to constantly do Web pages, write code, constantly look at other people's Code, research other people's Code!Practice JS with code every skill point: listen to more read more ask more write!Learn to System, you can also find a super-practical XXX code snippet, carefully grind!Keep track of

JavaScript is a Class C language, and it's pretty easy for me to learn.1 outputConsole.log (* *); Equivalent to printConsole.assert (*); popup 2 variable JS is a dynamic variable similar to Python but to precede with var such as var a = 3 or 3.0 or ' name ' and so on if not add Var to the global variable is not recommended so use 3 comparison operator with ' = = ', ' = = ' Converts a variable type 4 object

　　JavaScript is sensitive to capitalization.When writing JavaScript statements, be aware of whether to turn off the case toggle key.The function getElementById is different from the getElementById.Similarly, variable myvariable and myvariable are also different. JavaScript ignores extra spaces. You can add spaces to the script to improve its readability. The foll

This article mainly introduces nine ways to create objects to help you better learn javascript object-oriented, interested friends can refer to this article to share nine ways to create javascript objects for your reference. The specific content is as follows: [1] constructing functions using objects[Disadvantage] using the same interface to create many objects

understand the = = in JavaScript? 　　6. Iterative methodEvery (), filter (): Returns an array that matches the condition, which is useful when you want to filter items that meet certain criteria. foreach (), map (): Returns an array of specific processing, some ().1 var New Array (1, 2, 3, 4, 5, ten); 2 var newarray = Num.filter (function(item, index, array) {return item > 2;}); 3 alert (NewArray); // 3, 4, 5, tenOver. If you feel good, please help me

Easy to learn JavaScript 26: How to dynamically add JS scripts and CSS styles in DOM programming LearningThe following HTML document code is used: div Region 1. dynamically load external JS files Code for dynamically loading the external index. js file: alert("I am JS file!"); Code for dynamically loading external JS files: // Dynamically load the external JS file var flag = true; // set true and then lo