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Since I started using JS heavily lately, it's nice to be reminded of some things. Thanks for posting. One question though, it says: If you want to append

Since I started using JS heavily lately, it's nice to be reminded of some things. Thanks for posting. One question though, it says: If you want to append an item to an array, the safest way to do it is like this: a[a.length] = item; // same as a.push(item); a.push() variant seems more elegant to me. Why is a[] variant "safer"?

bpierre 13y ago
It must be for the compatibility, Array.prototype.push() has been added to IE 5.5: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push#Browser_compatibility https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...
- cstuder 13y ago
  Thirteen years ago... I would argue that you could use a.push() safely now. So, why should a[a.length] be safer?
  - coldtea 13y ago
    He said it already, JUST for the compatibility. No other reason compared to push nowadays.
unstabilo 13y ago
Both methods are equally safe, what the author meant is that both are safer than a[14] = item or a[myCounter] = item.