cruks-lib-object v1.3.1

cruks-lib-object

Provides set of object modification utilities.

Examples

var AccessorPropertyDescriptor = require("cruks-lib-object").AccessorPropertyDescriptor,
    obj = {};

Object.defineProperty(obj, "length", new AccessorPropertyDescriptor());

obj.length = 1;

With setter function:

var assert = require("assert"),
    AssertionFailureException = require("cruks-lib-config").AssertionFailureException,
    AccessorPropertyDescriptor = require("cruks-lib-object").AccessorPropertyDescriptor,
    obj = {};

Object.defineProperty(obj, "length", new AccessorPropertyDescriptor(function (item, AssertionFailure) {
    if ("number" !== typeof item) {
        throw new AssertionFailure();
    }

    return item;
}));

obj.length = 1;

assert.throws(function () {
    object.length = "not-a-number";
}, AssertionFailureException);