@walts81/linq-ts/lib/count.js

Typescript/Javascript LINQ implementation library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.count = void 0;
Array.prototype.count = count;
function count(expression) {
    if (!expression)
        return this.length;
    return this.filter((x, i) => expression(x, i)).length;
}
exports.count = count;