2016-01-28 01:16:24 -08:00
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define(['./_root', './toString'], function(root, toString) {
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2015-12-16 17:53:20 -08:00
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2025-12-10 17:03:07 -05:00
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/** Used to match leading whitespace. */
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2016-09-25 13:37:46 -07:00
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var reTrimStart = /^\s+/;
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2015-12-16 17:53:20 -08:00
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/* Built-in method references for those with the same name as other `lodash` methods. */
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2015-01-08 00:37:01 -08:00
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var nativeParseInt = root.parseInt;
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/**
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* Converts `string` to an integer of the specified radix. If `radix` is
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2016-03-26 00:00:01 -07:00
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* `undefined` or `0`, a `radix` of `10` is used unless `value` is a
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* hexadecimal, in which case a `radix` of `16` is used.
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2015-01-08 00:37:01 -08:00
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*
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2016-03-26 00:00:01 -07:00
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* **Note:** This method aligns with the
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* [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
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2015-01-08 00:37:01 -08:00
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*
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* @static
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* @memberOf _
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2016-03-26 00:00:01 -07:00
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* @since 1.1.0
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2015-01-08 00:37:01 -08:00
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* @category String
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* @param {string} string The string to convert.
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2016-02-15 20:20:54 -08:00
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* @param {number} [radix=10] The radix to interpret `value` by.
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2016-03-26 00:00:01 -07:00
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* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
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2015-01-08 00:37:01 -08:00
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* @returns {number} Returns the converted integer.
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* @example
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*
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* _.parseInt('08');
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* // => 8
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*
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* _.map(['6', '08', '10'], _.parseInt);
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* // => [6, 8, 10]
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*/
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function parseInt(string, radix, guard) {
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2015-12-16 17:53:20 -08:00
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if (guard || radix == null) {
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2015-01-08 00:37:01 -08:00
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radix = 0;
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2015-12-16 17:52:15 -08:00
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} else if (radix) {
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radix = +radix;
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2015-01-08 00:37:01 -08:00
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}
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2016-09-25 13:37:46 -07:00
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return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);
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2015-01-08 00:37:01 -08:00
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}
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return parseInt;
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});
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