[d565449] | 1 | import isSymbol from './isSymbol.js';
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| 2 |
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| 3 | /**
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| 4 | * Compares values to sort them in ascending order.
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| 5 | *
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| 6 | * @private
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| 7 | * @param {*} value The value to compare.
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| 8 | * @param {*} other The other value to compare.
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| 9 | * @returns {number} Returns the sort order indicator for `value`.
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| 10 | */
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| 11 | function compareAscending(value, other) {
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| 12 | if (value !== other) {
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| 13 | var valIsDefined = value !== undefined,
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| 14 | valIsNull = value === null,
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| 15 | valIsReflexive = value === value,
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| 16 | valIsSymbol = isSymbol(value);
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| 17 |
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| 18 | var othIsDefined = other !== undefined,
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| 19 | othIsNull = other === null,
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| 20 | othIsReflexive = other === other,
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| 21 | othIsSymbol = isSymbol(other);
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| 22 |
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| 23 | if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
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| 24 | (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
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| 25 | (valIsNull && othIsDefined && othIsReflexive) ||
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| 26 | (!valIsDefined && othIsReflexive) ||
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| 27 | !valIsReflexive) {
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| 28 | return 1;
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| 29 | }
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| 30 | if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
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| 31 | (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
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| 32 | (othIsNull && valIsDefined && valIsReflexive) ||
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| 33 | (!othIsDefined && valIsReflexive) ||
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| 34 | !othIsReflexive) {
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| 35 | return -1;
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| 36 | }
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| 37 | }
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| 38 | return 0;
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| 39 | }
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| 40 |
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| 41 | export default compareAscending;
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