JavaScript – Not-Equal (!=)
JavaScript Not-Equal (!=) Comparison Operator is used to check if two values are not equal. Not-Equal operator returns a boolean value. The return value is true if the two values are not equal, else, the return vale is true.
Not-Equal Operator Symbol
The symbol used for Not-Equal Operator is !=.
Syntax
The syntax to use Not-Equal Operator with operands is
operand1 != operand2
Each operand can be a value or a variable.
Since Not-Equal operator returns a boolean value, the above expression can be used as a condition in If-statement.
Not-Equal operator does not check the type of values being compared. For example, the expression 5 != '5' returns false in JavaScript.
Examples
In the following example, we take two values in variables: x and y; and check if the values in x and y are not equal using Not-Equal Operator.
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Since not-equal operator does not check the type of the operands, but the values alone, let us check if 5 is not equal to '5'. Not-equal operator must return false.
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In the following example, let us use the not-equal operator in the If statement’s condition.
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Conclusion
In this JavaScript Tutorial, we learned about Not-Equal Comparison Operator, its syntax, and usage with examples.