does_the_const_variable_make_the_value_immutable.md

Does the const variable make the value immutable

Does the const variable make the value immutable?

No, const only ensures that the variable identifier cannot be reassigned. It does not make the value immutable. If the value is an object or array, its properties or elements can still be modified.

Example:

const arr = [1, 2, 3];
arr.push(4);  // Works fine
arr = [4, 5, 6];  // Error: Assignment to constant variable

Tags: intermediate, JavaScript, Variables

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