Generate Array Javascript

Question

I want to generate an array in jQuery/JS, which contains "code"+[0-9] or [a-z]. So it will look like that.

code0, code1 ..., codeA, codeB

The only working way now is to write them manually and I am sure this is a dumb way and there is a way to generate this automatically.

If you give an answer with a reference to some article where I can learn how to do similar stuff, I would be grateful.

Thank you.

• Sudhir Bastakoti: you could use for loop and array.push()...
• Pank: see this post...stackoverflow.com/questions/4011840/…

Answer 1

For a-z using the ASCII table and the JavaScript fromCharCode() function:

var a = [];
for(var i=97; i<=122; i++)
{
 a.push("code" + String.fromCharCode(i));
}

For 0-9:

var a = [];
for(var i=0; i<=9; i++)
{
 a.push("code" + i);
}

• user1823761: Define your variables with var.
• user1823761: And your i variable too. for (var i...).
• Alexxus: @Mojtaba Thanks again! I'm not an expert in JS, but I try and learn ;-)
• user1823761: It's also good idea to create a fiddle demo for HTML/CSS/JS answers. Here is the fiddle for your answer: jsfiddle.net/mojtaba/8ghkm

Answer 2

I'm using the unicode hexcode to loop through the whole symbols from 0-z:

var arr = [];
for (var i = 0x30; i < 0x7b;i++){
 // skip non word characters
 // without regex, faster, but not as elegant:
 // if(i==0x3a){i=0x41}
 // if(i==0x5b){i=0x61}
 char = String.fromCharCode(i);
 while(!/\w/.test(char)){char = String.fromCharCode(i++)};
 // generate your code
 var res = "code"+char;
 // use your result
 arr.push(res);
}
console.log(arr);

Here goes your example .

Docs:

Unicode Table
for loop
fromCharCode
JS Array and it's methods

• jonny pixel: Thanks for the links. I need to learn more about that stuff. :)

Answer 3

you can generate array in javascript by using following code.

var arr = [];
for (var i = 0; i < 5; i++) {
 arr.push("code"+ i);
}

please refer following links.

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

http://www.scriptingmaster.com/javascript/JavaScript-arrays.asp

Answer 4

a = [];
for(i = 48; i < 91; i++) { 
 if (i==58) i = 65
 a.push("code" + String.fromCharCode(i));
}
alert(a.join(',')) // or cou can print to console of browser: console.log(a);