Javascript trim









function trim(str){
    return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
}


function trim (str) {
    var    str = str.replace(/^\s\s*/, ''),
        ws = /\s/,
        i = str.length;
    while (ws.test(str.charAt(--i)));
    return str.slice(0, i + 1);
}




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