--- /dev/null
+var $parseFloat = require('./_global').parseFloat
+ , $trim = require('./_string-trim').trim;
+
+module.exports = 1 / $parseFloat(require('./_string-ws') + '-0') !== -Infinity ? function parseFloat(str){
+ var string = $trim(String(str), 3)
+ , result = $parseFloat(string);
+ return result === 0 && string.charAt(0) == '-' ? -0 : result;
+} : $parseFloat;
\ No newline at end of file