Question

182

Passing variable number of arguments from one function to another

rated 0 times [ 185] [ 3] / answers: 1 / hits: 17659 / 13 Years ago, sun, september 4, 2011, 12:00:00

Possible Duplicate:

Is it possible to send a variable number of arguments to a JavaScript function?

I can use arguments to get a variable number of arguments within a function, but how can I pass them to another function without knowing its prototype?

function show(foo, bar) { window.alert(foo+' '+bar); }

function run(f) { f(arguments); } // not correct, what to do?

run(show, 'foo', 'bar');

Note: I cannot guarantee the number of arguments needed for the function f that is passed to run. Meaning, even though the example shown has 2 arguments, it could be 0-infinite, so the following isn't appropriate:

function run(f) { f(arguments[1], arguments[2]); }

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

kevonmoisesf

Add To Favorites

Follow

Total Points: 693

Total Questions: 101

Total Answers: 128

Location: Reunion

Member since Mon, Dec 28, 2020

3 Years ago

kevonmoisesf questions

1 Bootstrap 5 update Tooltip Title with Javascript

Sat, Jan 23, 21, 00:00, 3 Years ago

1 How to wait for reaction and only then send message [discord.js]

Thu, Aug 13, 20, 00:00, 4 Years ago

1 How do you display content of a .JSON file using Discord.js?

Tue, Feb 18, 20, 00:00, 4 Years ago

1 Flatpickr : set default date only if date value is null/empty

Tue, Nov 5, 19, 00:00, 5 Years ago

1 VueJs object key/value is not reactive in v-for loop

Wed, Jun 12, 19, 00:00, 5 Years ago

View All

answered 13 Years ago kiyam · Accepted Answer

The main way to pass a programmatically generated set of arguments to a function is by using the function's 'apply' method.

function show(foo, bar) {

  window.alert(foo+' '+bar);

}

function run(f) {

  // use splice to get all the arguments after 'f'

  var args = Array.prototype.splice.call(arguments, 1);

  f.apply(null, args);

}



run(show, 'foo', 'bar');