What is != And !== In JavaScript?

Question

7 авг. 2019 г. · != operator. The inequality operator (!=) is the logical opposite of the equality operator. It means “Not Equal” and returns true where equality .

What is difference between != and !== In JavaScript?

It means “Strictly Not Equal” and returns true where strict equality would return false and vice versa. Strict inequality will not convert data types. For example 1 !== '1' will return true since 1 is an integer and '1' is a character and no data type conversion take place.

What is meant by != In JavaScript?

The inequality operator ( != ) checks whether its two operands are not equal, returning a Boolean result. Unlike the strict inequality operator, it attempts to convert and compare operands that are of different types.

Why do we prefer === and !== Over == and != In JavaScript?

This is because the equality operator == does type coercion, meaning that the interpreter implicitly tries to convert the values before comparing. On the other hand, the identity operator === does not do type coercion, and thus does not convert the values when comparing.

What does the != operator do?

The not-equal-to operator ( != ) returns true if the operands don't have the same value; otherwise, it returns false .

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