How to capitalize the first letter of each word in an array in JavaScript? -

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this question has answer here:

i've been trying last hours understand why code not working well. instead of capitalizing first letters of each item in array code capitalizes letters in array.

function titlecase(str) { str = str.tolowercase().split(' ');    (var = 0; < str.length; i++){     str[i] = str[i].split(' ');     str[i][0] = str[i][0].touppercase();      str[i] = str[i].join(' ');   }   return str.join(' '); }  titlecase("i'm little tea pot");

if want more functional way:

const titlecase = str => (   str.split(' ').map(c => c.slice(0, 1).touppercase() + c.slice(1)).join(' ') );  titlecase("i'm little tea pot");

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