Why is this an issue?
Marking a variable that is unchanged after initialization const is an indication to future maintainers that "no this isn’t updated,
and it’s not supposed to be". const should be used in these situations in the interests of code clarity.
Noncompliant code example
function seek(input) {
let target = 32; // Noncompliant
for (let i of input) { // Noncompliant
if (i == target) {
return true;
}
}
return false;
}
function getUrl(query) {
let url; // Noncompliant
url = "http://example.com";
return url;
}
Compliant solution
function seek(input) {
const target = 32;
for (const i of input) {
if (i == target) {
return true;
}
}
return false;
}
function getUrl(query) {
const url = "http://example.com";
return url;
}
