@beenotung/tslib/compare.js

utils library in Typescript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.compare_by_keys = exports.compare = exports.CompareResult = exports.isBetween = void 0;
/**
 * inclusive
 * */
function isBetween(lowerBound, value, upperBound) {
    return lowerBound <= value && value <= upperBound;
}
exports.isBetween = isBetween;
var CompareResult;
(function (CompareResult) {
    CompareResult[CompareResult["Smaller"] = -1] = "Smaller";
    CompareResult[CompareResult["Equal"] = 0] = "Equal";
    CompareResult[CompareResult["Larger"] = 1] = "Larger";
})(CompareResult = exports.CompareResult || (exports.CompareResult = {}));
function compare(a, b) {
    return a < b
        ? CompareResult.Smaller
        : a > b
            ? CompareResult.Larger
            : CompareResult.Equal;
}
exports.compare = compare;
function compare_by_keys(_keys) {
    const keys = _keys.map(key => {
        if (typeof key === 'object') {
            return key;
        }
        return { key, order: 'asc' };
    });
    return (a, b) => {
        for (const { key, order } of keys) {
            const cmp = compare(a[key], b[key]);
            if (cmp !== 0) {
                return order === 'desc' ? -cmp : cmp;
            }
        }
        return 0;
    };
}
exports.compare_by_keys = compare_by_keys;
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