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Rich Trott
f44969a5ab
We have been stalled on ESLint 3.8.0 for some time. Current ESLint is 3.13.0. We have been unable to upgrade because of more aggressive reporting on some rules, including indentation. ESLint configuration options and bugfixes are now such that we can reasonably upgrade. PR-URL: https://github.com/nodejs/node/pull/10561 Reviewed-By: Teddy Katz <teddy.katz@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
var toInteger = require('./toInteger'),
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toNumber = require('./toNumber'),
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toString = require('./toString');
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/* Built-in method references for those with the same name as other `lodash` methods. */
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var nativeMin = Math.min;
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/**
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* Creates a function like `_.round`.
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*
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* @private
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* @param {string} methodName The name of the `Math` method to use when rounding.
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* @returns {Function} Returns the new round function.
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*/
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function createRound(methodName) {
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var func = Math[methodName];
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return function(number, precision) {
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number = toNumber(number);
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precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);
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if (precision) {
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// Shift with exponential notation to avoid floating-point issues.
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// See [MDN](https://mdn.io/round#Examples) for more details.
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var pair = (toString(number) + 'e').split('e'),
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value = func(pair[0] + 'e' + (+pair[1] + precision));
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pair = (toString(value) + 'e').split('e');
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return +(pair[0] + 'e' + (+pair[1] - precision));
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}
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return func(number);
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};
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}
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module.exports = createRound;
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