adom adom - 7 months ago 24
Javascript Question

Increment Alphabet in JavaScript

I want to show alphabet like this in Javascript;

A,B,C,D....ZX,ZY,ZZ

I tried like this;

var cols[A, B, C, D...Z];

cols.join(',');

for (var i = cols[0]; i < cols.length; i++) {
for(var j = cols[0]; j < cols.length; j++) {
var k = 'i' + 'j';
}
}

document.write(<span> + cols.join + </span>);


Could you tell me how to write source code?

Answer

Yes, this is pretty easy to accomplish with 2 arrays, with one containing an extra blank entry

var char1 = ['A','B','C','D','E','F']; // shortened for demo - make a..z
var char2 = ['','A','B','C','D','E','F']; // shortened for demo, make a..z

var result = [];
for(var i=0;i<char2.length;i++)
{   
   for(var j=0;j<char1.length;j++)
   {
      result.push(char2[i] + char1[j])
   }
}

for(var x=0;x<result.length;x++)
{
    document.write(result[x] + " ")
}

As was noted in comments, making an array of characters is much easier in practice using

var char1 = 'ABCDEF'.split('');