eslint/default-case-last Style
What it does
Requires the default clause in switch statements to be the last one.
Why is this bad?
By convention and for readability, the default clause should be the last one in a switch. While it is legal to place it before or between case clauses, doing so is confusing and may lead to unexpected "fall-through" behavior.
Examples
Examples of incorrect code for this rule:
js
/* default-case-last: "error" */
switch (foo) {
default:
bar();
break;
case "a":
baz();
break;
}
switch (foo) {
case 1:
bar();
break;
default:
baz();
break;
case 2:
qux();
break;
}Examples of correct code for this rule:
js
/* default-case-last: "error" */
switch (foo) {
case 1:
bar();
break;
case 2:
qux();
break;
default:
baz();
break;
}
switch (foo) {
case "x":
bar();
break;
case "y":
default:
baz();
break;
}How to use
To enable this rule using the config file or in the CLI, you can use:
json
{
"rules": {
"default-case-last": "error"
}
}ts
import { defineConfig } from "oxlint";
export default defineConfig({
rules: {
"default-case-last": "error",
},
});bash
oxlint --deny default-case-lastVersion
This rule was added in v0.0.16.