=== are two comparison operators that are used to compare two values or variables.
== operator performs type coercion before comparing the values, which means that if the operands are of different types, it will convert one or both of them to a common type before comparing. For example:
console.log(10 == '10'); // true console.log(true == 1); // true console.log(null == undefined); // true
On the other hand, the
=== operator does not perform type coercion and will only return
true if the values are of the same type and have the same value. For example:
console.log(10 === '10'); // false console.log(true === 1); // false console.log(null === undefined); // false
In general, it is considered a best practice to use the
=== operator for comparisons to avoid unexpected results due to type coercion. However, there may be cases where the
== operator is preferred, such as when checking for null or undefined values, where the two are considered equivalent.
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