I have an 'n' number of array and how can I concat all array into a single array using jQuery

Question

How can I concat 'n' number of arrays into a single array using jQuery.

     a1 = [a,b,c,d,f];
     a2 = [h,g,f,r];
     ...............
     an = [r,e,c,g,s,g];

and I need to get like

     A = [a,b,c,d,f,h,g,f,r,.....,r,e,c,g,s,g];

Please help. Thank you in advance for all replay

Answer 1

You're looking for array concat method

jsBin demo

var arr1 = ["a", "b"];
var arr2 = ["c", "d"];

var arr3 = arr1.concat(arr2);

console.log(arr3);  // ["a", "b", "c", "d"]

You can find more info here:

https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/concat

Answer 2

var A=a1.concat(a2,a3,a4,....,an);

Answer 3

Assuming your arrays are all named a<x> , and global variables, you can loop through them on the window object as follows:

var output = [];
for(var i = 1; window['a'+i]; i++){
    output = output.concat(window['a'+i]);
}

Working example

Output will then, at the end of the loop, be a concatenation of all the arrays.

window['a'+i] will refer to the a1 - aX arrays, since global variables are properties of the window object. As such, these are all identical:

var output = "Some content"

console.log(output);
console.log(window.output);
console.log(window['output']);
// These will all return "Some content"

You can also manually concatenate them like this if you know how many you have:

output = a1.concat(a2,a3,a<x>...);

Answer 4

Array.prototype.concat([1,2,3],[4,5])

要么

[1,2,3].concat([4,5])

Answer 5

Try with $.merge; example:

var new = $.merge( [0,1,2], [2,3,4] ); // new = [0,1,2,2,3,4]

Answer 6

Use concat() method.

var a1 = ["a","b","c","d","f"]; 
var a2 = ["h","g","f","r"]

var a3 = a1.concat(a2);

console.log(a3);  // Outputs: ["a", "b", "c", "d", "f", "h", "g", "f", "r"]

Answer 7

您可以使用标准功能concat 。

Answer 8

Something similar to:

for(a2...an){
    a1 = $.merge(a1,next);
}