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Explain few difference between null, undefined or undeclared javascript variable?
List different ways of empty an array in javascript?
How to add a new property in existing function javascript?
How to encode and decode a url in javascript?
What does the instanceof operator do?
What is the difference between let and var?
What are different types of scope chain available in javascript?
What is difference between local and global scope in javascript ?
What is output of undefined * 2 in javascript?
Explain function hoisting in javascript?
What is difference between array.splice() and array.slice() method in javascript?
List some design patterns in javascript?
How host objects are different from native objects in javascript?
How to redirect a page to another page in javascript?
What is the difference between ‘let’ and ‘const’?
