How to write not equal in js

The inequality operator (!=) in JavaScript is used to compare whether the values ​​of two operands are different, considering only the value, not the type.

The inequality operator in JavaScript

In JavaScript, the inequality operator is used to compare two Whether the operands are different. It is expressed using two equal signs (!=).

How to use

To use the inequality operator, just place the two operands that need to be compared on both sides of the operator. For example:

console.log(1 != 2); // true
console.log("a" != "b"); // true

In the above example, the comparison operations are all different values, so the results are all true.

是什么意思是什么

The inequality operator is different from the equality operator (===). In addition to comparing the values ​​of the operands, the identity operator also compares their data types. In contrast, the not-equal operator only compares values, regardless of data type.

Example

The following example illustrates the difference between the inequality operator and the equality operator:

console.log(1 != "1"); // true
console.log(1 !== "1"); // false

In the first example , the not equal operator returns true because the values ​​of the operands are different. In the second example, the equality operator returns false because although the values ​​of the operands are the same, they are of different types.

Summary

The inequality operator is used in JavaScript to compare whether two operands are different. It is represented using != and only compares the values ​​of the operands. Unlike the equality operator, it does not take data types into account.

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