JavaScript: String Concatenation slow performance? Array.join('')?
- by NickNick
I've read that if I have a for loop, I should not use string concation because it's slow. Such as:
for (i=0;i<10000000;i++) {
str += 'a';
}
And instead, I should use Array.join(), since it's much faster:
var tmp = [];
for (i=0;i<10000000;i++) {
tmp.push('a');
}
var str = tmp.join('');
However, I have also read that string…
