4.17.11
3.10.1
2.4.2
1.3.1

_.partial(func, [partials])

sourcenpm package

Creates a function that invokes func with partials prepended to the arguments it receives. This method is like _.bind except it does not alter the this binding.

The _.partial.placeholder value, which defaults to _ in monolithic builds, may be used as a placeholder for partially applied arguments.

Note: This method doesn't set the "length" property of partially applied functions.

Since

0.2.0

Arguments

argument
func
[partials]
type
Function
...*
description
The function to partially apply arguments to.
The arguments to be partially applied.

Returns

(array)

Example

function greet(greeting, name) {
  return greeting + " " + name;
}

var sayHelloTo = _.partial(
  greet,
  "hello"
);
sayHelloTo("fred");
// => 'hello fred'

// Partially applied with placeholders.
var greetFred = _.partial(
  greet,
  _,
  "fred"
);
greetFred("hi");
// => 'hi fred'

function greet(greeting, name) {
  return greeting + " " + name;
}

var sayHelloTo = _.partial(greet, "hello");
sayHelloTo("fred");
// => 'hello fred'

// Partially applied with placeholders.
var greetFred = _.partial(greet, _, "fred");
greetFred("hi");
// => 'hi fred'