Question

84

Return all values from array in lowercase using for loop instead of map

rated 0 times [ 88] [ 4] / answers: 1 / hits: 101712 / 11 Years ago, sat, april 27, 2013, 12:00:00

var sorted = words.map(function(value) {

    return value.toLowerCase();

}).sort();

This code returns all values from words array in lowercase and sorts them, but I wanna do the same with a for loop but I can't.

I tried:

for (var i = 0; i < words.length; i++) {

  sorted = [];

  sorted.push(words[i].toLowerCase());

};

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answered 11 Years ago nikhilh · Accepted Answer

With arrays, the += operator does not do what you expect - it calls .toString on the array and concatenates them. Instead, you want to use the array push method:

var sorted = [];

for (var i = 0; i < words.length; i++) {

    sorted.push(words[i].toLowerCase());

}

sorted.sort();