Extending Angular function to execute script on JSON dynamically

Question

I am designing a platform for a site, where site users are allowed to execute scripts on JSON in browser window only

Here is a screen shot of page:

enter image description here

user will be getting the JSON, and whatever script is written in form will execute on JSON.

I am using AngularJS as my front end scripting tool. I know there are ways to execute script using JavaScript eval() funciton. Also another way to execute script is

function runMe() {
        console.log('here you  go');
}
var fnstring = "runMe";
var ex = window[fnstring];
ex.apply();

But I am looking for a better approach in JavaScript/AngularJS only. Is there any way through which I can extend my Angular Scope function dynamically. Or is there any other Object oriented approach, I should use in order to maintain the script execution safe and optimize.

@Wawy : execute on Json means, basic javascript operation (push,indexOf,etc ) that will be written in script will apply on(execute upon) Json and will modify the json data accordingly — Prateek
– Prateek, Commented Jan 30, 2015 at 14:42

Wawy · Accepted Answer · 2015-01-30 14:56:09Z

0

Based on your comment you could do something like this:

Assuming you store your JSON in a variable called myArr.

You could execute expressions against that Array:

var myArr = [{a: 1}];
var expression = "this[0].b = this[0].a + 2"; //example expression
$parse(expression)(myArr);
console.log(myArr[0]);

More on angular expressions: AngularJS docs on expressions

And $parse: AngularJS docs on $parse

answered Jan 30, 2015 at 14:56

Wawy

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