JavaScript: Create a function that accepts up to one argument, ignoring any additional arguments

JavaScript fundamental (ES6 Syntax): Exercise-115 with Solution

Write a JavaScript program to create a function that accepts up to one argument, ignoring any additional arguments.

Note: Call the provided function, fn, with just the first argument given.

• Call the provided function, fn, with just the first argument supplied.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 
const unary = fn => val => fn(val);
console.log(['6', '8', '10'].map(unary(parseInt)));

Sample Output:

[6,8,10]

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-115-1 by w3resource (@w3resource) on CodePen.

Improve this sample solution and post your code through Disqus

Previous: Write a JavaScript program to uncurry a function up to depth n.
Next: Write a JavaScript program to check if the predicate (second argument) is truthy on all elements of a collection (first argument).