JavaScript Object is() Method Examples
Example: In this example, Object.is() returns true for the first comparison because both values are 5, but false for the second comparison because 5 and '5' are of different types. It returns true for NaN comparison because NaN is considered the same value as itself, and false for 0 and -0 comparison because they are considered different values.
console.log(Object.is(5, 5)); // true
console.log(Object.is(5, '5')); // false
console.log(Object.is(NaN, NaN)); // true
console.log(Object.is(0, -0)); // false
Output
true false true false
JavaScript Object is() Method
JavaScript Object.is() method is used to compare if two values are the same value.
Object.is() returns true if the values are the same, and false otherwise. It differs from the strict equality operator === in the handling of NaN and positive/negative zero.
Syntax:
Object.is(value1, value2)
Parameters:
Object.is() Method takes two parameters:
- value1: It is the first value to be compared.
- value2: It is the second value to be compared.
Return Value:
Object.is() returns a boolean indicating whether the two arguments are the same or not.