forked from zhurui/management
43 lines
868 B
JavaScript
43 lines
868 B
JavaScript
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var toNumber = require('./toNumber');
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/** Used as references for various `Number` constants. */
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var INFINITY = 1 / 0,
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MAX_INTEGER = 1.7976931348623157e+308;
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/**
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* Converts `value` to a finite number.
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*
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* @static
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* @memberOf _
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* @since 4.12.0
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* @category Lang
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* @param {*} value The value to convert.
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* @returns {number} Returns the converted number.
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* @example
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*
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* _.toFinite(3.2);
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* // => 3.2
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*
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* _.toFinite(Number.MIN_VALUE);
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* // => 5e-324
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*
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* _.toFinite(Infinity);
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* // => 1.7976931348623157e+308
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*
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* _.toFinite('3.2');
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* // => 3.2
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*/
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function toFinite(value) {
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if (!value) {
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return value === 0 ? value : 0;
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}
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value = toNumber(value);
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if (value === INFINITY || value === -INFINITY) {
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var sign = (value < 0 ? -1 : 1);
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return sign * MAX_INTEGER;
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}
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return value === value ? value : 0;
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}
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module.exports = toFinite;
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