JavaScript Boolean, Boolean() | Basics
JavaScript has a Boolean data type and a boolean variable value is one that can either be TRUE or FALSE. The boolean function returns the… Read More »JavaScript Boolean, Boolean() | Basics
JS Basic
JavaScript abstract class | Basics
JavaScript is a prototype-oriented, not an object-oriented programing language. So JavaScript doesn’t have an abstract class concept. If you would like a class that cannot… Read More »JavaScript abstract class | Basics
Block scope JavaScript | Basics
A JavaScript block-scoped means that the variable defined within a block will not be accessible from outside the block. Variables declared inside a { }… Read More »Block scope JavaScript | Basics
JavaScript Number Object | Basics
JavaScript Number is a primitive data type that stores numeric values. In JavaScript don’t need to declare for integer or floating values using int, float,… Read More »JavaScript Number Object | Basics
JavaScript string Object | Basics
JavaScript string holds primitive type values which is a sequence of characters. JavaScript treats primitive values as objects when executing methods and properties. Strings can… Read More »JavaScript string Object | Basics
What is the difference between typeof and instanceof?
Use Use instanceof for custom types and use typeof for simple and complex built-in types, this is the main difference between typeof and instanceof in… Read More »What is the difference between typeof and instanceof?
JavaScript if else statement | Basic code
Using JavaScript if else statement you can decision maker program. The if statement executes a statement if a specified condition is truthy. If the condition… Read More »JavaScript if else statement | Basic code
How to avoid NaN in JavaScript | Basic code
JavaScript NaN is the return value from operations that have an undefined numerical result. NaN is an error value that means not a number. Below… Read More »How to avoid NaN in JavaScript | Basic code
Declare Boolean in JavaScript | Basic code
Just use the literal values, true or false to declare Boolean in JavaScript. You should never create a boolean using the Boolean constructor function because… Read More »Declare Boolean in JavaScript | Basic code
JavaScript Optional Chaining | Use and Examples
Using JavaScript optional chaining operator (?.) can get the value of a property located deep objects (Nested Object) without having to check that if each… Read More »JavaScript Optional Chaining | Use and Examples