Question

How to declare a const (readonly) array in TypeScript

Answer 1

const arr = [4, 13, 9] as const;

console.log(arr[0]);
console.log(arr[1]); 
console.log(arr[2]); 

// arr[0] = 12; // Cannot assign to '0' because it is a read-only property.

 


/*
run:
 
4 
13 
9
 
*/

 

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