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8. difference between `==` and `===`
==
is a loose equality comparison operator in JavaScript. It means that it will compare two values after doing type coercion if necessary. For example, 5 == "5"
would return true because the string "5"
is coerced to the number 5
.
On the other hand, ===
is a strict equality comparison operator in JavaScript. It means that it will compare two values without doing type coercion. So, 5 === "5"
would return false because the values have different types.
In summary, ==
compares values after doing type conversion if necessary, while ===
compares values without doing any type conversion.