opendash
Version:
open.DASH data visualization framework
36 lines • 1.44 kB
JavaScript
// based on https://github.com/lodash/lodash/blob/4.17.11/lodash.js
export function compare(mapper, desc) {
if (desc === void 0) { desc = false; }
return function (a, b) {
if (mapper) {
a = mapper(a);
b = mapper(b);
}
if (a !== b) {
var aIsDefined = a !== undefined;
var aIsNull = a === null;
var aIsReflexive = a === a;
var aIsSymbol = false; // isSymbol(a);
var bIsDefined = b !== undefined;
var bIsNull = b === null;
var bIsReflexive = b === b;
var bIsSymbol = false; // isSymbol(b);
if ((!bIsNull && !bIsSymbol && !aIsSymbol && a > b) ||
(aIsSymbol && bIsDefined && bIsReflexive && !bIsNull && !bIsSymbol) ||
(aIsNull && bIsDefined && bIsReflexive) ||
(!aIsDefined && bIsReflexive) ||
!aIsReflexive) {
return desc ? -1 : 1;
}
if ((!aIsNull && !aIsSymbol && !bIsSymbol && a < b) ||
(bIsSymbol && aIsDefined && aIsReflexive && !aIsNull && !aIsSymbol) ||
(bIsNull && aIsDefined && aIsReflexive) ||
(!bIsDefined && aIsReflexive) ||
!bIsReflexive) {
return desc ? 1 : -1;
}
}
return 0;
};
}
//# sourceMappingURL=compare.js.map