Turning a JSON formatted string into parameters for a function

Question

Turning a JSON formatted string into parameters for a function

Looking to convert a string of JavaScript objects into function arguments. The string format is as follows:

"{ "item1": "foo 1", "item2": "bar 1" }, { "item1": "foo 1", "item2": "bar 2" }"

While I can use JSON.parse to turn it into an array, the challenge lies in passing each object as separate arguments rather than as an array.

For example:

functionCall({ "item1": "foo 1", "item2": "bar 1" }, { "item1": "foo 1", "item2": "bar 2" });

The number of objects in the string is dynamic, making it difficult to determine how many arguments the function should accept.

I would prefer to group multiple objects under one variable and then pass that variable like so:

var objects = { "item1": "foo 1", "item2": "bar 1" }, { "item1": "foo 1", "item2": "bar 2" }

Is there a way to achieve this or any alternative approach available?

javascript json function object arguments

Answer 1

Answer №1

To assign a specific scope to a function, you can utilize the Function.prototype.apply() method:

functionCall.apply(context, arguments);

(Replace context with the desired scope for the function.)

The second parameter should be an array of arguments, so simply gather the arguments into an array before using apply.

Answer 2

To assign a specific scope to a function, you can utilize the Function.prototype.apply() method:

functionCall.apply(context, arguments);

(Replace context with the desired scope for the function.)

The second parameter should be an array of arguments, so simply gather the arguments into an array before using apply.

Answer 3

Answer №2

If you want to transform an array into function arguments, one way is to utilize Function.prototype.apply:

functionCall.apply(null, objects);

The initial argument of null serves as the context for the function; if you're not calling a method on an object, using null in its place works just fine.

Answer 4

If you want to transform an array into function arguments, one way is to utilize Function.prototype.apply:

functionCall.apply(null, objects);

The initial argument of null serves as the context for the function; if you're not calling a method on an object, using null in its place works just fine.

Turning a JSON formatted string into parameters for a function

Answer №1

Answer №2

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