freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-strict-equality-operator.english.md

id, title, challengeType

id	title	challengeType
56533eb9ac21ba0edf2244d1	Comparison with the Strict Equality Operator	1

Description

Strict equality (===) is the counterpart to the equality operator (==). However, unlike the equality operator, which attempts to convert both values being compared to a common type, the strict equality operator does not perform a type conversion. If the values being compared have different types, they are considered unequal, and the strict equality operator will return false. Examples

3 === 3 // true
3 === '3' // false

In the second example, 3 is a Number type and '3' is a String type.

Instructions

Use the strict equality operator in the if statement so the function will return "Equal" when val is strictly equal to 7

Tests

tests:
  - text: <code>testStrict(10)</code> should return "Not Equal"
    testString: assert(testStrict(10) === "Not Equal", '<code>testStrict(10)</code> should return "Not Equal"');
  - text: <code>testStrict(7)</code> should return "Equal"
    testString: assert(testStrict(7) === "Equal", '<code>testStrict(7)</code> should return "Equal"');
  - text: <code>testStrict("7")</code> should return "Not Equal"
    testString: assert(testStrict("7") === "Not Equal", '<code>testStrict("7")</code> should return "Not Equal"');
  - text: You should use the <code>===</code> operator
    testString: assert(code.match(/(val\s*===\s*\d+)|(\d+\s*===\s*val)/g).length > 0, 'You should use the <code>===</code> operator');

Challenge Seed

// Setup
function testStrict(val) {
  if (val) { // Change this line
    return "Equal";
  }
  return "Not Equal";
}

// Change this value to test
testStrict(10);

Solution

function testStrict(val) {
  if (val === 7) {
    return "Equal";
  }
  return "Not Equal";
}