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Building strings
// String concatenation
var stringBuilder = '';
for (var i = 0, len = 30; i < len; i++) {
stringBuilder += 'word' + i;
}
console.log(stringBuilder);
// Array joining, faster in some browsers
var stringBuilder = [];
for (var i = 0, len = 30; i < len; i++) {
stringBuilder.push('word' + i);
}
console.log(stringBuilder.join(''));
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