What are the key differences between 'var' and 'let' in JavaScript?

var is function-scoped, while let is block-scoped, leading to different behaviors in variable accessibility.

• Scope: 'var' is function-scoped; 'let' is block-scoped.

• Hoisting: 'var' is hoisted and initia...read more

var and let both are used to assign variable.

but there are some different. var defined variable are block level and let are not