ts-guards/dist/standard-object.js

A collection of basic type guards.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.areObjectPropertiesOf = exports.isObjectPropertyOf = exports.isArrayOf = exports.isArray = void 0;
const primitive_type_1 = require("./primitive-type");
/**
 * Standard built-in objects
 * See also https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
 */
// Array
function isArray(x) {
    return Array.isArray(x);
}
exports.isArray = isArray;
function isArrayOf(x, y) {
    return isArray(x) && x.length > 0 && x.every(i => y(i));
}
exports.isArrayOf = isArrayOf;
// Object
function isObjectPropertyOf(x, property) {
    if (!primitive_type_1.isObject(x)) {
        return false;
    }
    return property in x;
}
exports.isObjectPropertyOf = isObjectPropertyOf;
function areObjectPropertiesOf(x, property) {
    if (!primitive_type_1.isObject(x)) {
        return false;
    }
    property.forEach(p => {
        if (!(p in x)) {
            return false;
        }
    });
    return true;
}
exports.areObjectPropertiesOf = areObjectPropertiesOf;
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