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24 lines
620 B
JavaScript
24 lines
620 B
JavaScript
/** Native method references. */
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var pow = Math.pow;
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/**
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* Creates a `_.ceil`, `_.floor`, or `_.round` function.
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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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precision = precision === undefined ? 0 : (+precision || 0);
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if (precision) {
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precision = pow(10, precision);
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return func(number * precision) / 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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