javascript : Object.isDate
javascript : Object .isDate Target: Applicable with any javascript Object Variable that holds date value . Description : When an object holds an date then it return true otherwise undefined . basically it is defined in Date prototype. Many time in programming we face a problem that an object variable holds Date value or other object structure then it help us. Before writing the code of Date manipulation we can check whether a variable holds Date value or not. Note: It is an property of Date, that is defined in Date Prototype. It is useful to check an object variable is Date or any other type. When we check the typeof(object_variable) it return 'object' not 'date'. Syntax: Object .isDate return true when object hold's Date value otherwise undefined Usase: var obj = 'date'; if(obj.isDate){ console.log('Object holds date value'); } else{ console.log('Object is not a date value'); ...