In ES6, which scenario would necessitate using let over const?
- When the variable needs to be reassigned
- When the variable should remain constant throughout its scope
- When the variable is used in a loop
- When the variable is a function declaration
The 'let' keyword should be used when the variable needs to be reassigned within its scope, as 'const' variables cannot be reassigned after initialization. 'const' is appropriate for variables that should remain constant throughout their scope.
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