Last change
on this file since fa375fe was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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[6a3a178] | 1 | var toNumber = require('./toNumber');
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| 2 |
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| 3 | /** Used as references for various `Number` constants. */
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| 4 | var INFINITY = 1 / 0,
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| 5 | MAX_INTEGER = 1.7976931348623157e+308;
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| 6 |
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| 7 | /**
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| 8 | * Converts `value` to a finite number.
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| 9 | *
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| 10 | * @static
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| 11 | * @memberOf _
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| 12 | * @since 4.12.0
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| 13 | * @category Lang
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| 14 | * @param {*} value The value to convert.
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| 15 | * @returns {number} Returns the converted number.
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| 16 | * @example
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| 17 | *
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| 18 | * _.toFinite(3.2);
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| 19 | * // => 3.2
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| 20 | *
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| 21 | * _.toFinite(Number.MIN_VALUE);
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| 22 | * // => 5e-324
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| 23 | *
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| 24 | * _.toFinite(Infinity);
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| 25 | * // => 1.7976931348623157e+308
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| 26 | *
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| 27 | * _.toFinite('3.2');
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| 28 | * // => 3.2
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| 29 | */
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| 30 | function toFinite(value) {
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| 31 | if (!value) {
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| 32 | return value === 0 ? value : 0;
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| 33 | }
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| 34 | value = toNumber(value);
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| 35 | if (value === INFINITY || value === -INFINITY) {
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| 36 | var sign = (value < 0 ? -1 : 1);
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| 37 | return sign * MAX_INTEGER;
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| 38 | }
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| 39 | return value === value ? value : 0;
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| 40 | }
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| 41 |
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| 42 | module.exports = toFinite;
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