CODEWITHSUNDEEP
javascript
Rue Kennington
Rue Kennington

Reputation: 67

Javascript createElement vs. getElementById

Is it safe to use tile to identify the newly created div here:

var tile = document.createElement("div");
document.getElementById('tileBlock').appendChild(tile);
var tileName = 'tile' + numbersToLetters(tileX) + numbersToLetters(tileY);
tile.setAttribute('id', tileName);
tile = blah blah blah...

Or do I need to reattach tile?

var tile = document.createElement("div");
document.getElementById('tileBlock').appendChild(tile);
var tileName = 'tile' + numbersToLetters(tileX) + numbersToLetters(tileY);
tile.setAttribute('id', tileName);
tile = document.getElementById(tileName);
tile = blah blah blah...

Upvotes: 2

Views: 103

Answers (1)

Pointy
Pointy

Reputation: 413818

You don't need to re-fetch the element, and you don't really need to use .setAttribute():

tile.id = tileName;

Changing the "id" property does not "break" your reference to the element. The value of the variable "tile" remains unchanged, in other words.

Upvotes: 3

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