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The Object.is() method in JavaScript serves the purpose of comparing two values for equality. It returns a boolean value indicating whether the two values are the same.
Syntax:
Object.is(value1, value2)
Parameter:
value1: The first value to compare.value2: The second value to compare.
Example: Here,
- In the first example,
Object.is(5, 5) returns true because both values are numerically equal.
- In the second example,
Object.is(5, "5") returns false because the values are of different types (number and string).
- In the third example,
Object.is(NaN, NaN) returns true because both values are NaN.
- In the fourth example,
Object.is(+0, -0) returns false because the two zero values have different signs.
Javascript
console.log(Object.is(5, 5));
console.log(Object.is(5, "5"));
console.log(Object.is(NaN, NaN));
console.log(Object.is(+0, -0));
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Output
true
false
true
false
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