CODEWITHSUNDEEP
javascriptfunctionarguments
Sowmay Jain
Sowmay Jain

Reputation: 955

How to write multiple arguments with single variable in Javascript?

I'm using a single structure dynamically for many function as shown below:

Parent[funcName](data, function(err) {
   // further operations
});

The variable "data" in the function have 0, 1, 2 or 3 as per the function requirement. It works fine when single argument is passed in "data" but if more than 1, it shows error - "more argument are expected".

So how can I pass multiple arguments by using single variable? Is there any work around?

Upvotes: 0

Views: 2099

Answers (2)

Akash
Akash

Reputation: 4553

You can use the spread operator

Parent[funcName](...data, function(err) {
   // further operations
});

where data is the array of all the parameters you have passed.

Upvotes: 4

messerbill
messerbill

Reputation: 5629

Just make use of the arguments object:

function myFunction() {
  for (var i = 0; i < arguments.length; i++) {
    console.log(arguments[i]);
  }
}

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/arguments

or this way:

function foo(...args) {
  return args;
}
foo(1, 2, 3); // [1,2,3]

greetings

Upvotes: 1

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