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| var regSpace = /^\s+/;
| exports = function(str, chars) {
| if (chars == null) {
| if (str.trimLeft) {
| return str.trimLeft();
| }
| return str.replace(regSpace, '');
| }
| var start = 0;
| var len = str.length;
| var charLen = chars.length;
| var found = true;
| var i;
| var c;
| while (found && start < len) {
| found = false;
| i = -1;
| c = str.charAt(start);
| while (++i < charLen) {
| if (c === chars[i]) {
| found = true;
| start++;
| break;
| }
| }
| }
| return start >= len ? '' : str.substr(start, len);
| };
|
| module.exports = exports;
|
|
