如何添加一个对象到一个数组 [英] How to add an object into an array
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问题描述
我如何添加对象到一个数组(在JavaScript或jQuery的)?
例如,这个问题这是什么code?
< - 语言:郎JS - >
功能(){
VAR一个=新阵列();
变种B =新的对象();
一个[0] = B;
}
我想用这个code到许多对象保存到在功能1阵列和调用函数2使用数组对象。
- 如何保存对象到一个数组?
- 在一个阵列怎样才能得到一个对象,并将其保存到一个变量?
解决方案
使用的Array.push将任何东西放入数组()。
VAR A = [],B = {};
a.push(二);
// a [0] === B:
的阵列上的额外信息的
一次添加多个项目
VAR X = ['一'];
x.push('B','C');
// X = ['一','B','C']
将项目添加到一个数组的开头
VAR X = ['C','D'];
x.unshift('一个','B');
// X = ['一','B','C','D']
一个阵列中的内容添加到其他
VAR X = ['一','B','C'];
变种Y = ['D','E','F'];
x.push.apply(X,Y);
// X = ['一','B','C','D','E','F']
// Y = ['D','E','F'(保持不变)
创建两个数组内容的新数组
VAR X = ['一','B','C'];
变种Y = ['D','E','F'];
变种Z = x.concat(Y);
// X = ['一','B','C'(保持不变)
// Y = ['D','E','F'(保持不变)
// Z = ['一','B','C','D','E','F']
How can I add an object into an array (in javascript or jquery)? For example, what is the problem this code?
<!-- language: lang-js -->
function(){
var a = new array();
var b = new object();
a[0]=b;
}
I would like to use this code to save many objects into the array in function1 and call function2 to use the object in array.
- How can I save an object into an array?
- How can get an object in an array and save it to a variable?
解决方案
Put anything into an array using Array.push().
var a=[], b={};
a.push(b);
// a[0] === b;
Extra information on Arrays
Add more than one item at a time
var x = ['a'];
x.push('b', 'c');
// x = ['a', 'b', 'c']
Add items to the beginning of an array
var x = ['c', 'd'];
x.unshift('a', 'b');
// x = ['a', 'b', 'c', 'd']
Add the contents of one array to another
var x = ['a', 'b', 'c'];
var y = ['d', 'e', 'f'];
x.push.apply(x, y);
// x = ['a', 'b', 'c', 'd', 'e', 'f']
// y = ['d', 'e', 'f'] (remains unchanged)
Create a new array from the contents of two arrays
var x = ['a', 'b', 'c'];
var y = ['d', 'e', 'f'];
var z = x.concat(y);
// x = ['a', 'b', 'c'] (remains unchanged)
// y = ['d', 'e', 'f'] (remains unchanged)
// z = ['a', 'b', 'c', 'd', 'e', 'f']
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