kr-observable/dist/esm/main/src/Utils.js

Adds reactivity power for your JavaScript

export class Utils {
    static AdmKey = Symbol.for('adm');
    static IGNORED = 0;
    static ACCESSOR = 1;
    static SHALLOW = 2;
    static WRITABLE = 3;
    static isPlainObject(value) {
        const ctor = value?.constructor;
        return !ctor || ctor === Object;
    }
    static isPrimitive(val) {
        return val === null || (typeof val !== 'object' && typeof val !== 'function');
    }
    static isDeepEqual(a, b) {
        if (a == null || b == null)
            return Object.is(a, b);
        const A = a.valueOf();
        const B = b.valueOf();
        if (typeof A === 'object') {
            if (typeof B !== 'object')
                return false;
            const keys = Object.keys(A);
            if (keys.length !== Object.keys(B).length)
                return false;
            for (const key of keys) {
                if (!Utils.isDeepEqual(A[key], B[key]))
                    return false;
            }
            return true;
        }
        return Object.is(a, b);
    }
    static getAdm(value) {
        return value[Utils.AdmKey];
    }
}