get-safe

> Safe access to deeply nested properties or functions in JS objects without getting a TypeError but undefined instead.

You can even call a nested function in objects if the last nested key ends with (). You can pass arguments by adding them as last parameters of the get-safe function call.

#### Install:

Using npm
``
npm install get-safe --save
`

Using yarn:
`bash
yarn add navscroll
`

Directly include it in html:
`html






`


Warning! The only gotcha here is Safari 10 doesn’t support the nomodule attribute, but you can solve this by inlining a JavaScript snippet in your HTML prior to using any <script nomodule> tags. (Note: this has been fixed in Safari 11).



The browser version adds the getSafe function to the 'window' object that you can use !


#### How to use
`JavaScript

const _ = require ('get-safe');
const myObj = {
foo: {
bar: {
baz: ['winter','is','coming'],
fifo (arg1, arg2) {
console.log("I'am a function, arguments are:",...arguments);
return 42;
}
}
}
};

// Tests
console.log(_('foo.bar.baz.2',myObj)); // logs 'coming'
console.log(_('foo.bar.fifo()',myObj,'arg1','arg2')); // calls the nested function 'fifo' and logs its result
console.log(_('foo.inexistant.property.baz',myObj)); // logs 'undefined'
`

_NOTE:_ If you are NOT making a function call and just accessing a property, you can pass a default value as the third argument, this will be returned instead of undefined` if the nested property doesn't exsit.