![]() Once you are done with comparison operators do have a look at logical operators. As a next step do spend some quality time practicing the operators understand how they differ from each other and also try breaking them. If x is a true value, x is false, and x is true. Its actually two operators, where x means (x), and behaves as follows: If x is a false value, x is true, and x is false. The double negation operator calculates the truth value of a value. In this tutorial, we covered the JavaScript not equal and the other comparison operators. Objects are true, but the undefined value and null are both false. Greater than or equal to (>=) - Checks if the value is greater than or equal to the value on the right.Greater than (>) - Checks if the value on the left is greater than the value on the right.Strict equal to (=) - Checks is two values are equal and of similar type. ![]() Equal to (=) - Check if two values are equal. ![]() Other Comparison Operators:Īpart from the JavaScript not equal and Strict inequality operators, we have a few other operators that solve different use cases. In the last case, we used the strict inequality operator and it returned true as the values were of different types. Do note that in the latter case even though we passed 10 as a string the operator was able to compare both the values. In the second and third cases, it returned a false cause the values are the same. In the first case, it returned true as the values were different. However, the “!=” or Strict inequality operator does not attempt to do so and returns false if the values are unequal or of different types.īoth these operators solve different purposes and hence I would recommend practicing them to facilitate further understanding.Ĭode and Explanation: console.log(5 != 10) Simply hold down the Alt Key and type 8800. This operator tries to compare values irrespective of whether they are of different types. If you have a keyboard with a numeric pad, you can use this method. The JavaScript not equal or inequality operator (!=) checks whether two values are not equal and returns a boolean value. A JavaScript string is zero or more characters written inside quotes. This article is a good starting point for the same, however, we do emphasize more on the JavaScript not equal (!= & !=) operators. Although they are called logical, they can be applied to values of any type, not only boolean. Here we cover the first three, the operator is in the next article. ![]() Given its vast usage, every developer should understand the functionality of each operator. There are four logical operators in JavaScript: (OR), & (AND), (NOT), (Nullish Coalescing). Hence these operators are used in decision making or as conditional statements for loops. These operators return a boolean value (true or false) based on the condition. However, it will typecast "Falsey" values like undefined and NaN into False ( ) which may lead to unexpected results, and it has worse readability because null isn't explicitly stated.Comparison operators in programming languages are used to compare two values. The Double Not Version !! has faster performance, than both the Strict Not Version != and the Non-Strict Not Version != ( ). My recommendation is to use the Strict Not Version. There are 3 ways to check for "not null". ![]()
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