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