Rediscovering JavaScript

Chapter 6

Here are the solutions to the ​Exercises​, for the Chapter 6, ​Literals and Destructuring​ chapter.

Exercise 1

'use strict';

const greet = function(name, gender) {
  return `Hello, ${gender === Symbol.for('female') ? 'Ms.' : 'Mr.'} ${name}`;
};

console.log(greet('Sara', Symbol.for('female'))); //Hello, Ms. Sara
console.log(greet('Tom', Symbol.for('male'))); //Hello, Mr. Tom

Exercise 2

'use strict';

const stripMargin = function(texts, ...expressions) {
  const exceptLast = expressions.map(function(expression, index) {
    return `${texts[index]}${expression.toString().toUpperCase()}`;
  }).join('');

  const result = `${exceptLast}${texts[texts.length - 1]}`;