no-const-assign.md

Pattern: Reassignment of const variable

Issue: -

Description

Variables declared with const cannot be reassigned. Attempting to modify a const variable will raise a runtime error. Use let or var instead if the variable needs to be reassigned.

Examples

Example of incorrect code:

const a = 0;
a = 1;

const b = 0;
b += 1;

const obj = {};
obj = { prop: 1 };

Example of correct code:

const a = 0;
console.log(a);

let b = 0;
b += 1;

const obj = {};
obj.prop = 1;  // Modifying properties is allowed