var global = require('../internals/global');
+var fails = require('../internals/fails');
+var uncurryThis = require('../internals/function-uncurry-this');
+var toString = require('../internals/to-string');
var trim = require('../internals/string-trim').trim;
var whitespaces = require('../internals/whitespaces');
-var $parseFloat = global.parseFloat;
-var FORCED = 1 / $parseFloat(whitespaces + '-0') !== -Infinity;
+var charAt = uncurryThis(''.charAt);
+var n$ParseFloat = global.parseFloat;
+var Symbol = global.Symbol;
+var ITERATOR = Symbol && Symbol.iterator;
+var FORCED = 1 / n$ParseFloat(whitespaces + '-0') !== -Infinity
+ // MS Edge 18- broken with boxed symbols
+ || (ITERATOR && !fails(function () { n$ParseFloat(Object(ITERATOR)); }));
// `parseFloat` method
// https://tc39.es/ecma262/#sec-parsefloat-string
module.exports = FORCED ? function parseFloat(string) {
- var trimmedString = trim(String(string));
- var result = $parseFloat(trimmedString);
- return result === 0 && trimmedString.charAt(0) == '-' ? -0 : result;
-} : $parseFloat;
+ var trimmedString = trim(toString(string));
+ var result = n$ParseFloat(trimmedString);
+ return result === 0 && charAt(trimmedString, 0) == '-' ? -0 : result;
+} : n$ParseFloat;