In the process of learning JS, it is good to find this guy do special effects, although the current level is not enough, but also can write some simple effect.Share a simple motion framework today. Then use this framework to achieve a simple
String class Attribute and MethodAnchor () Create an instance of the tag and set its Name property to the string passed to this methodBig () converts a string to an instance of the tagBlink () Converts a string to an instance of a tagBold ()
1.break: Jump out of the loop.2.continue: Skips an iteration in the loop. (Iteration: The sliding of the repetitive feedback process, which is intended to approximate the desired target or result.) Each repetition of a process is called an iteration,
What is JS pre-compilationImmediately to find a job, before learning JS are very basic fur, as the most fiery language, I must be research, but just contact with the pre-compilation I was going crazy, for a brain does not work really too round,
Index.html page Box2d Test Your browser does not support HTML5 Canvas Box2d.js page var world;var scale = 30;//30 pixels on canvas represents 1 meters in the world of Box2D Function init ()
Common function definition methods:function abs (x): { if (x >= 0) { return x; } else { return-x; }} The two methods are equivalent var abs = function (x): { if (x >= 0) { return x; }
1. There are two forms of JavaScript code leather:Method one can effectively improve the reusability of code2, JavaScript code storage location
In the head of HTML
The bottom of the body code block of HTML (recommended)
Because the
It is hard to imagine that this is a 60-page bestseller, and it is conceivable that the book is the greatest Truth in the world.Why we "know", but "cannot", the missing link is that there is intermittent repetition, that is, repetition, repetition,
[Declaration and invocation of functions]1. Function declaration format:Function name (parameter 1, parameter 2, Parameter 3 ...) {//function body return result;} function call format: function name (value of parameter 1, value of parameter 2, ...) ;
Town Field Poem:The Pure Heart sentiment wisdom language, does not have the world name and the benefit. Learn water under the hundred rivers, give up arrogant slow meaning.Learn to have a small return to feed root, willing to cast a conscience blog.
Town Field Poem:The Pure Heart sentiment wisdom language, does not have the world name and the benefit. Learn water under the hundred rivers, give up arrogant slow meaning.Learn to have a small return to feed root, willing to cast a conscience blog.
A simple JavaScript code thinkingFirst look at a simple code, print the result is?? Why??From the above printing results are not difficult to see, in the Print basic variable num, function expression FN, function declaration fun, we already know
One, Object traversalES6 there are altogether 5 ways to traverse the properties of an object.1 , For-inWhen you use the for-in loop, you return all the enumerable (enumerated) attributes that can be accessed through the object, including the
Town Field Poem:The Pure Heart sentiment wisdom language, does not have the world name and the benefit. Learn water under the hundred rivers, give up arrogant slow meaning.Learn to have a small return to feed root, willing to cast a conscience blog.
The JavaScript language has a mechanism: when parsing, you can automatically insert a semicolon after a sentence to modify the semicolon delimiter that is omitted at the end of the statement.However, since this automatically inserted semicolon
Js disables browser rollback events and js disables browser events
Come directly to an ultimate solution:
This method can be used to remove all the backward actions. This includes keyboard and mouse gestures.
This method is now used in our project.
Pure JS image verification code and compatible with IE6-8 (recommended), jsie6-8
I recently want to develop an image verification code function, but I don't want to write the background code myself. So I prepared a front-end verification code
Use localResizeIMG in. net MVC + Bootstrap to upload images,
The example in this article shares the code for using localResizeIMG to upload images for your reference. The details are as follows:
Header file to be loaded
Html:
repair photo upload
How does Vue introduce remote JS files? How does vue introduce js files?
Problem
Recently, we have been using Vue to do things and use the dingtalk login scan function. We need to introduce remote js files because the Vue method is different from
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