no-var
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-var"],
"exclude": ["no-var"]
}
}
}Enforces the use of block scoped variables over more error prone function scoped
variables. Block scoped variables are defined using const and let keywords.
const and let keywords ensure the variables defined using these keywords are
not accessible outside their block scope. On the other hand, variables defined
using var keyword are only limited by their function scope.
Invalid:
var foo = "bar";
Valid:
const foo = 1;
let bar = 2;