Learn Javascript Object.is() method for Beginners
The Javascript Object.is() method compares two or more objects and returns true if both are the same or returns false.
The checking is not just limited to type checking or checking of value it goes beyond and checks its instance or the objects are the same.
Syntax
Object.is(object1, object2, object3...);
It returns a boolean value.
var arr = [1,2,3]; var copy = arr; console.log(Object.is(arr,copy)); //Console Output true
Comparing all objects, string, and numbers with Object.is() method.
var str1 = "Javascript";
var str2 = "Javascript";
console.log(Object.is(str1,str2)); // true
var num1 = 100.25;
var num2 = 100.25;
console.log(Object.is(num1,num2)); // true
console.log(Object.is(null,null)); // true
var arr1 = [];
var arr2 = [];
console.log(Object.is(arr1,arr2)); // false
var arr3 = arr1;
console.log(Object.is(arr1,arr3)); // false
var obj1 = {};
var obj2 = {};
console.log(Object.is(obj1,obj2)); // false
var obj3 = obj1;
console.log(Object.is(obj1,obj3)); // true
Comparing multiple objects
var obj1 = {};
var obj2 = {};
var obj3 = obj1;
console.log(Object.is(obj1,obj2,obj3));
//Console Output
false
We can compare multiple objects and the checking ours in AND the logic that is to return true all for the above 3 objects these objects must be the same if one object is different this does not match with other objects and the method returns false.
Conclusion
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