array

Morse code is a time and time to break signal codes, in different order to express different English letters, numerals and punctuation, was invented by the American Samuel Morse in 1836.Each character (letter or number) corresponds to a different

When it comes to waterfall flow layout, let's take a picture to illustrate what waterfall flow is good. This is a screenshot of my graduation (the content is I temporarily climbed down from other sites to test ...). Then we can see from this

1. All functions have a arguments object of their own, which includes the parameters to be invoked by the function. He is not an array, and if you use typeof arguments, it returns ' object '. Although we can call the arguments using the method that

Let's start with how callbacks is used: the first example function A () {} Function B () {} var cb = $. Callbacks (); Cb.add (a); Cb.add (b); Cb.fire (); //You will execute the a method first and then execute the B method The above probably

In the array operation will often encounter the problem of removing duplicates, the following is a brief introduction to the method of array, and its execution efficiency Method OneUsing two loopsPrinciple: Take the current and the back of the

Although mostly done on the back end, however, because some of the time to write the front of the interface, so I learned the next jquery and Ajax knowledge, although this writing for the front of the great God for some of the feeling of teaching,

In S. For, you can traverse the dominant property of an object or array, which means that our own defined attributes are traversed, and those that are already on the prototype are the ones that are available by default, such as:

Referencing a type in JavaScript is a data structure that is organized together. It is also often called a class, but there is no concept of class in JavaScript. Although JavaScript is an object-oriented language, it does not have the basic

Don't write anything today, just share a thought.In the group before the discussion, the Shei Liang brothers said to determine whether the password is pure numbers, pure letters and so on.If you are writing with if or switch to look at the egg pain,

An array to repeat is a common requirement, and we temporarily consider the same type of array to repeat. The main reason is to clear the thinking and consider performance.The For loop deletes the following duplicate var uniquefor = function (arr)

It's strictly a custom pseudo-class selector, but it's also pretty interesting.Yesterday when I learned one of the jquery lazy load source, I saw it written at the end. /* Custom selectors for your convenience. Provide a custom choice for your

Today we'll explain how to use them in combat. I'm using a very popular library require.js. One, why should use Require.js? At the earliest, all of the JavaScript code was written in a file, and it was enough to load the file. Later, more and

Recent development encountered a page pass array to the action background list type, the Received list object is not imagined according to the array element position corresponding to the acceptance, such as the array of 0 bits inserted into the list

Brief summary: Apply (): Call the function as a method of the specified object, passed to it is the specified argument array--function.apply (thisobj, args) or function.apply (thisobj, args) Bind (): main function: Bind a function to an object,

JS full selection function code optimization Recently looking at JavaScript MVC that book, also feel that their own writing code is not elegant, so have been thinking of another mode to write JS code, so for the previous simple JS full selection

Before we talk about the shallow copy and deep copy of JavaScript, we need to discuss the data type of JS. We all know there are five types of number,boolean,string,null,undefined,object. And object also contains Function,array and object itself.

String is an indispensable element in JavaScript programming, and mastering the common method of string is also the only way in our learning process, we summarize some of the most common string methods.String.charat (postion)The Charat method

Advantages of the jquery paging effect var total=$ (. Class). length; Gets the total number of elements that need to be paginated var radio=3;//according to the width screen to obtain the number of offer per page display: var pagesize=parseint

Because JavaScript is divided into primitive types and reference types (similar to Java, C #). Array is a reference type, so directly with the = number assignment, only the address of the source array (or pointer) assigned to the destination array,

Article Introduction: jquery wrapper function to achieve the advantages of the array element paging effect. The advantage of using jquery's $ () wrapper function to achieve the paging effect of array elements In the last week in the