The Javascript Let keyword
The Javascript let keyword is more prescriptive than the simple var assignment of vsriables.
A search using Microsoft Bing turned up an answer to the query about "Javescript let".
The AI solution/explanation is show below:
<script>
// Block Scope Example
if (true) {
let message = "Hello, block scope!";
console.log(message); // Output: Hello, block scope!
}
// console.log(message); // Error: message is not defined
// Reassignment Example
let count = 10;
count = 20; // Works fine
console.log(count); // Output: 20
// Temporal Dead Zone Example
console.log(name2); // Output Uncaught ReferenceError: Cannot access 'name' before initialization
let name = "Alice";
console.log(name); // Output: Alice
</script>
The scoping of the variables can be seen using console.