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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:

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

Live Demo:

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


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JavaScript: Tips of the Day

Chunks an array into n smaller arrays

Example:

const tips_chunkIntoN = (arr, n) => {
  const size = Math.ceil(arr.length / n);
  return Array.from({ length: n }, (v, i) =>
    arr.slice(i * size, i * size + size)
  );
}
console.log(tips_chunkIntoN([1, 2, 3, 4, 5, 6, 7,8], 4)); 

Output:

[[1,2],[3,4],[5,6],[7,8]]