_.partial

_.partial(func, [partials])

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

func (Function): The function to partially apply arguments to.
[partials] (...*): The arguments to be partially applied.

Returns

(Function): Returns the new partially applied function.

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'

Links:

https://lodash.com/docs/4.17.2#partial

doc_Lodash

2025-01-10 15:47:30

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