linqts/dist/src/helpers.js

LinQ + TypeScript

var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
/**
 * Checks if the argument passed is an object
 */
export var isObj = function (x) { return !!x && typeof x === 'object'; };
/**
 * Determine if two objects are equal
 */
export var equal = function (a, b) {
    return Object.entries(a).every(function (_a) {
        var _b = __read(_a, 2), key = _b[0], val = _b[1];
        return isObj(val) ? equal(b[key], val) : b[key] === val;
    });
};
/**
 * Comparer helpers
 */
export var composeComparers = function (previousComparer, currentComparer) { return function (a, b) {
    return previousComparer(a, b) || currentComparer(a, b);
}; };
export var keyComparer = function (_keySelector, descending) { return function (a, b) {
    var sortKeyA = _keySelector(a);
    var sortKeyB = _keySelector(b);
    if (sortKeyA > sortKeyB) {
        return !descending ? 1 : -1;
    }
    else if (sortKeyA < sortKeyB) {
        return !descending ? -1 : 1;
    }
    else {
        return 0;
    }
}; };
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