42 lines
1.3 KiB
JavaScript
42 lines
1.3 KiB
JavaScript
import isSymbol from './isSymbol.js';
|
|
|
|
/**
|
|
* Compares values to sort them in ascending order.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {number} Returns the sort order indicator for `value`.
|
|
*/
|
|
function compareAscending(value, other) {
|
|
if (value !== other) {
|
|
var valIsDefined = value !== undefined,
|
|
valIsNull = value === null,
|
|
valIsReflexive = value === value,
|
|
valIsSymbol = isSymbol(value);
|
|
|
|
var othIsDefined = other !== undefined,
|
|
othIsNull = other === null,
|
|
othIsReflexive = other === other,
|
|
othIsSymbol = isSymbol(other);
|
|
|
|
if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
|
|
(valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
|
|
(valIsNull && othIsDefined && othIsReflexive) ||
|
|
(!valIsDefined && othIsReflexive) ||
|
|
!valIsReflexive) {
|
|
return 1;
|
|
}
|
|
if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
|
|
(othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
|
|
(othIsNull && valIsDefined && valIsReflexive) ||
|
|
(!othIsDefined && valIsReflexive) ||
|
|
!othIsReflexive) {
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
export default compareAscending;
|