Basic Javascript (60/111) | Practice comparing different values | freeCodeCamp

Basic Javascript (60/111) | Practice comparing different values | freeCodeCamp

In the last two challenges, we learned about the equality operator (==) and the strict equality operator (===). Let's do a quick review and practice using these operators some more.

If the values being compared are not of the same type, the equality operator will perform a type conversion, and then evaluate the values. However, the strict equality operator will compare both the data type and value as-is, without converting one type to the other.

Examples

3 == '3' // returns true because JavaScript performs type conversion from string to number
3 === '3' // returns false because the types are different and type conversion is not performed
Note
In JavaScript, you can determine the type of a variable or a value with the typeof operator, as follows:

typeof 3 // returns 'number'