Undefined vs Undeclared [Javascript]

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May 18, 20241 min read

UndefinedUndeclared DefinitionA variable that has been declared but has not been assigned a value.A variable that has not been declared in any...

Undefined vs Undeclared [Javascript]

For In loop in JavaScript

May 26, 20243 min read

The for...in loop in JavaScript is used to iterate over the enumerable properties of an object. This includes both the object's own properties and...

For In loop in JavaScript

Exception Handling(error handling)

May 26, 20243 min read

Exception handling in JavaScript is a mechanism to handle runtime errors gracefully, ensuring that your application can handle unexpected situations...

Exception Handling(error handling)

Strict mode in JavaScript

May 26, 20244 min read

"Strict mode" in JavaScript is a way to opt into a restricted variant of the language, which aims to improve code quality and catch common mistakes...

Strict mode in JavaScript

IIFE in JavaScript

May 26, 20243 min read

An IIFE (Immediately Invoked Function Expression) is a JavaScript function that runs as soon as it is defined. It is a common design pattern used to...

IIFE in JavaScript

== vs === in JavaScript

May 26, 20242 min read

In JavaScript, == and === are comparison operators used to compare two values. However, they differ in how they handle type conversion. == (Equality...

== vs === in JavaScript