Is it possible to add a Function to a json?

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Let’s get to the problem. In datatable.js, to display the columns I define as follows:

    "aoColumns": [
                { "mDataProp": "IdProcesso", "sTitle": "Numero" }
                 ]

If you need to perform some function:

                 {
                    "mDataProp": "DataAbertura", "sTitle": "Data Abertura",
                    "fnRender": function (oObj) {
                        return //minha function vem aqui!
                    }
                },

Now comes the question is it possible to add this Function in the Json object dynamically? When I say dynamic I mean the fact that this object will be created by another Function and at the end it returns me a string generated by JSON.stringify and Function is rendered unusable. I hope I’ve been able to explain my doubt

jquery json
  • 2

    In a json not but an object yes, whether the datatable uses it or not is another question :) This object will be serialized in json or is to be consumed by the datatable API?

  • The application already receives a json I wanted to add the function. Then way will be to create the object and add the necessary function. Okay, thanks so much for the help.

  • This object will be serialized in json or is to be consumed by the datatable API?

  • Consumed by the API.

  • 1

    @Deividsonoliveira, I don’t know if it’s still relevant... but you can pass your Function as a string and when creating the object actually build it using the Function() class. However, this is far from good practice...

1 answer

1


There is an alternative, using the function eval

The function eval executes the string passed to her, as you can see in the example below:

https://jsfiddle.net/yrzruztw/

eval('alert("teste")');

This will make Alert appear on the screen. Therefore my suggestion is that you save your function in the format of string, and execute it so.

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