how to copy array

Array manipulation of JavaScript1 , creation of arraysvar arrayobj = new Array (); Create an arrayvar arrayobj = new Array ([size]); Create an array and specify the length, note not the upper limit, is the lengthvar arrayobj = new Array ([element0[,

When you do a project, you need to add a new attribute to the object, and you don't want to modify the original object. So write: var newObj = oldobj, but the object will change after the new object property is changed, because whether it is a new

1. Creation of arraysvar arrayobj = new Array (); Create an arrayvar arrayobj = new Array ([size]); Create an array and specify the length, note not the upper limit, is the length var arrayobj = new Array ([element0[, element1[, ...　[, ELEMENTN]]]);

In JavaScript Many people copy an object directly with the "=", because everyone thinks the scripting language is no pointers, references, addresses and so on, so directly with "=" can be used to copy an object to another object, the following

1. Topic title: Gauss Diary Gauss, the great mathematician, has a good habit of keeping a diary in any case. His diary has a different place, he never dated, but with an integer instead of, for example: 4210 Later, people knew that the whole number

System.arraycopy method: If the array is larger, then the use of system.arraycopy will be more advantageous, because it uses memory replication, eliminating a large number of array addressing access and other time public static native void

1. Creation of arraysvar arrayobj = new Array (); Create an arrayvar arrayobj = new Array ([size]); Create an array and specify the length, note not the upper limit, is the lengthvar arrayobj = new Array ([element0[, element1[, ...　[, ELEMENTN]]]);

Reprinted from: http://blog.sina.com.cn/s/blog_95fa28e60101mwup.htmlUnshift: Adds a parameter to the beginning of the original array and returns the length of the arrayPop: Deletes the last item of the original array and returns the value of the

With JS for a long time, but did not delve into the array of JS form. Occasionally used as simple string.split (char). This period of time to do a project, using the array of places a lot, since the JS master himself unexpectedly, a am, I learn! Oh.

1. Creation of arraysvar arrayobj = new Array (); Create an arrayvar arrayobj = new Array ([size]); Create an array and specify the length, note not the upper limit, is the lengthvar arrayobj = new Array ([element0[, element1[, ...　[, ELEMENTN]]]);

I. Array Operations 1. Create an arrayCopy codeThe Code is as follows:Var arrayObj = new Array (); // create an ArrayVar arrayObj = new Array ([size]); // create an Array and specify the length. Note that the length is not the upper limit.Var

1 , creation of arraysvar arrayobj = new Array (); Create an arrayvar arrayobj = new Array ([size]); Create an array and specify the length, note not the upper limit, is the lengthvar arrayobj = new Array ([element0[, element1[, ...　[, ELEMENTN]]]);

1. Creation of arraysvar arrayobj=New Array(//create an array  var arrayobj = new array ([size]//create an array and specify the length, note not the upper limit, is the length  var arrayobj = new array ([element0][element1],[... ],[elementn]) 　;

I have been using js for a long time, but I have never gotten into the js array form. Occasionally, it is a simple string. split (char ). During this period of time, there were a lot of projects that used arrays. I thought I could not help myself as

This article describes in detail how to operate arrays in javascript. For more information about how to create arrays, see section 1. Create arrays. The Code is as follows: Var arrayObj = new Array (); // create an ArrayVar arrayObj = new Array ([

This article mainly introduces the javascript Array Operation Method summary and three attributes in detail. If you need them, please refer to those who have been using js recently and study the operations of js arrays, here is a summary. 1. Create

This article describes how to operate javascript arrays. For more information, see 1. Create an array Var arrayObj = new Array (); // create an ArrayVar arrayObj = new Array ([size]); // create an Array and specify the length. Note that the length

In js, arrays have many operations, including array creation, sorting, length, value, deletion, access, and other data operation methods. Below I will summarize js Array Operations, for more information, see. Js array definition: The Code

Conversion of arrays to strings================================================Operation of JS Array1. Creation of arraysvar arrayobj = new Array (); Create an arrayvar arrayobj = new Array ([size]); Create an array and specify the length, note not

array manipulation of JavaScript ????? 1. Creation of arrays ? ? ? ? ? var arrayobj = new Array ();　Create an array var arrayobj = new Array ([size]); Create an array and specify the length, note not the upper limit, is the length var arrayobj =