hasify

Overview

hasify is a utility function that extends an object with a has method, allowing to easily check for nested child elements. So, instead of this:

if (obj && obj.child && obj.child.property && obj.child.property.value) {
    // do stuff!
}

You get this:

if (obj.has('child.property.value')) {
    // do stuff!
}

In addition, you can use hasify as a standalone utility function.

if (hasify(obj, 'child.property.value')) {
    // do stuff!
}

Usage

As a standalone function, hasify allows you to pass an object and string to determine if the object has nested children.

var has = require('hasify');
var obj = {};

obj.name = {};
obj.name.value = 1;

console.log(has(obj, 'name')); // logs 'true'
console.log(has(obj, 'name.value')); // logs 'true'
console.log(has(obj, 'name.value.nope')); logs 'false'

If preferred, hasify can extend an object with a has method, as shown below:

var hasify = require('hasify');
var restful = require('our-totally-cool-service');

restful.make('user', 'password', function(err, res) {
    if (!err) {
        hasify(res);
        
        if (res.has('user.last.accessed')) {
            // continue
        } else {
            // new instance
        }
    }
});

Finally, hasify also allows object instantiation with a helper has method.

var newStateObject = hasify();
newStateObject = syncLogUserIn(token);

if (newStateObject.has('user.isLoggedIn')) {
    // Do stuff...
}

Installation

hasify can easily be installed via npm.

npm install hasify --save