JavaScript Comparison Operators Examples: Practical Scenarios

📚 Quick Study Guide

• 🔑Equality (==): Checks if two values are equal after type coercion. For example, 5 == "5" returns true.
• ❗Inequality (!=): Checks if two values are not equal after type coercion. For example, 5 != "6" returns true.
• ✅Strict Equality (===): Checks if two values are equal without type coercion. The values and types must be identical. For example, 5 === "5" returns false.
• ⛔Strict Inequality (!==): Checks if two values are not equal without type coercion. The values or types must be different. For example, 5 !== "5" returns true.
• ✅Greater Than (>): Checks if the left value is greater than the right value. For example, 10 > 5 returns true.
• ✅Less Than (<): Checks if the left value is less than the right value. For example, 5 < 10 returns true.
• ✅Greater Than or Equal To (>=): Checks if the left value is greater than or equal to the right value. For example, 10 >= 10 returns true.
• ✅Less Than or Equal To (<=): Checks if the left value is less than or equal to the right value. For example, 5 <= 10 returns true.

Practice Quiz

1. Which comparison operator checks for equality without type coercion?
   1. ==
   2. !=
   3. ===
   4. !==
2. What will be the result of "10" == 10 in JavaScript?
   1. true
   2. false
   3. Error
   4. undefined
3. What will be the result of "10" === 10 in JavaScript?
   1. true
   2. false
   3. Error
   4. undefined
4. Which operator checks if a value is NOT equal, without type coercion?
   1. !=
   2. ==
   3. !==
   4. ===
5. What is the output of 5 > 3?
   1. true
   2. false
   3. 1
   4. 0
6. What is the output of 2 <= 2?
   1. true
   2. false
   3. undefined
   4. null
7. Which of the following is NOT a comparison operator in JavaScript?
   1. ==
   2. =
   3. >=
   4. <=