no-dupe-args
NOTE: this rule is part of the
recommended rule set.Enable full set in
deno.json:{
"lint": {
"rules": {
"tags": ["recommended"]
}
}
}Enable full set using the Deno CLI:
deno lint --rules-tags=recommended
This rule can be explictly included to or excluded from the rules present in the current tag by adding it to the
include or exclude array in deno.json:{
"lint": {
"rules": {
"include": ["no-dupe-args"],
"exclude": ["no-dupe-args"]
}
}
}Disallows using an argument name more than once in a function signature.
If you supply multiple arguments of the same name to a function, the last instance will shadow the preceding one(s). This is most likely an unintentional typo.
Invalid:
function withDupes(a, b, a) {
console.log("I'm the value of the second a:", a);
}
Valid:
function withoutDupes(a, b, c) {
console.log("I'm the value of the first (and only) a:", a);
}