Is there a simple way I can populate an Array with objects containing an id and name from A to Z?

Question

Currently my code is doing this:

wordLetterSelect = [
    {
        id: 'A',
        name: 'A'
    }, {
        id: 'B',
        name: 'B'
    }
];

But I need to do it for every character in the alphabet. Is there a simple way that I could do this without just repeating one character after the other in the same way as I have done for A and B?

Update

The possible duplicate question does something similar but does not do what I am looking for. Hope someone can help with this. Thanks

Possible duplicate of [How to generate an array of alphabet in jQuery?](http://stackoverflow.com/questions/24597634/how-to-generate-an-array-of-alphabet-in-jquery) .you can push objects to array — Madhawa Priyashantha, Apr 30 '16 at 12:11
answer is not using jquery .also you can split a string as 2nd answer.then dynamically push objects to array — Madhawa Priyashantha, Apr 30 '16 at 12:13
The other question does explain something similar but I'm not sure how to make this generate the array of objects like I need. — Samantha J T Star, Apr 30 '16 at 12:15

Ali Mamedov · Answer 1 · 2016-04-30T12:52:05.917

5

Use this sample (no maps required):

var wordLetterSelect = [];

for (var i = 65; i <= 90; i++) {

  var letter = String.fromCharCode(i);

  wordLetterSelect.push({id: letter, name: letter});
}

console.log(wordLetterSelect);

This code generates an object with letters from their codes. 65 is A, 66 - B ... 90 - Z.

edited Apr 30 '16 at 12:52

answered Apr 30 '16 at 12:20

Ali Mamedov

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1

`String.fromCharCode()` returns a string, you can simply assign to the `letter`, without concatenating – isvforall Apr 30 '16 at 12:51

score 2 · Answer 2 · answered Apr 30 '16 at 12:19

2

use a loop.you can create and push objects to array.

wordLetterSelect = [];
alphabet = 'abcdefghijklmnopqrstuvwxyz'.split('');
for(var i=0;i<alphabet.length;i++){
    wordLetterSelect.push({id:alphabet[i],name:alphabet[i]});
}
console.log(wordLetterSelect);

answered Apr 30 '16 at 12:19

Madhawa Priyashantha

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you can use `toUpperCase()` or UpperCase string if you want uppercase letters – Madhawa Priyashantha Apr 30 '16 at 12:22

score 1 · Accepted Answer · edited Apr 30 '16 at 13:49

1

Using map:

var wordLetterSelect = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.split('').map(function(param){ 
   return {
        id: param,
        name: param
   };
});

Of course you can do the same with a loop if you don't like the map thing.

edited Apr 30 '16 at 13:49

Andy

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answered Apr 30 '16 at 12:23

JohnIdol

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This is giving me a message saying "cannot find name obj" – Samantha J T Star Apr 30 '16 at 12:26
1

Why not do `A..Z` and spare yourself the `.toUppercase()`s? – Andy Apr 30 '16 at 12:35
You are either setting a global variable named `obj`, or getting a ReferenceError. – Apr 30 '16 at 12:53

score 0 · Answer 4 · answered Apr 30 '16 at 12:36

0

var getLetter = n => String.fromCharCode(n + 65);

var wordLetterSelect = new Array(26).fill(0).map((_, i) => ({
    id: getLetter(i),
    letter: getLetter(i)
}));

document.write('<pre>' + JSON.stringify(wordLetterSelect, 0, 2) + '</pre>');

answered Apr 30 '16 at 12:36

isvforall

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Is there a simple way I can populate an Array with objects containing an id and name from A to Z?

4 Answers4