How to enter the not equal symbol in js

The inequality operator is represented as != in JavaScript. It is used to compare whether two values ​​are not the same, and returns true if they are different, otherwise it returns false. It is different from the strict inequality operator (!==), which also compares value types.

How to enter the inequality symbol

in JS?

In JavaScript, the inequality operator is !=.

Purpose

The inequality operator is used to compare whether two values ​​are different. The operator returns true if the two values ​​are not the same, and false if they are the same.

Expression syntax

<code>expression1 != expression2</code>

where expression1 and expression2 are the values ​​to be compared.

Example

<code>console.log(1 != 2); // 输出：true
console.log("foo" != "bar"); // 输出：true
console.log(true != false); // 输出：true</code>

Note

Please note that the inequality operator (!= ) is different from the strict inequality operator (!==). The strict inequality operator compares not only values, but also types.

For example:

<code>console.log("1" != 1); // 输出：true
console.log("1" !== 1); // 输出：false</code>

In the first example, != returns true because the string "1" and the number 1 have different values . In the second example, !== returns false because they have the same value and type.

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