babel-plugin-shield

A babel plugin to shield your code against annoying undefined property errors (Uncaught TypeError: Cannot read property 'xyz' of undefined").

Let's say you have a deep nested object something like this:

var testObj = {
    func1: function () {
        return { b : 2 };
    },
    testFunc:function(){
        var value = this.func2().b; // undefined property func2
    }
}

So as you would have guessed correctly this would through our not so favourite undefined error.

till now most of you would have been solving this problem using && something like,

var value = this && this.func2 && this.func2() && this.func2().b;

Well, not anymore this plugin is here to shield you against all such troubles.

Getting Started

$ npm install --save babel-plugin-shield
//add shield as plugin in your babelrc
{
    plugins: ['shield']
}

Usage

var value = shield_(this.func2().b);

That's pretty much it.

License

babel-plugin-shield is released under the MIT License

Thanks