noConfusingLabels
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Diagnostic Category: lint/suspicious/noConfusingLabels
Since: v1.0.0
Sources:
- Inspired from:
no-labels
Disallow labeled statements that are not loops.
Labeled statements in JavaScript are used in conjunction with break and continue to control flow around multiple loops.
Their use for other statements is suspicious and unfamiliar.
The rule ignores reactive Svelte statements in Svelte components.
Examples
Section titled ExamplesInvalid
Section titled Invalidlabel: f();code-block.js:1:1 lint/suspicious/noConfusingLabels ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Unexpected label.
> 1 │ label: f();
│ ^^^^^
2 │
ℹ Only loops should be labeled.
The use of labels for other statements is suspicious and unfamiliar.
label: { f(); break label;}code-block.js:1:1 lint/suspicious/noConfusingLabels ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Unexpected label.
> 1 │ label: {
│ ^^^^^
2 │ f();
3 │ break label;
ℹ Only loops should be labeled.
The use of labels for other statements is suspicious and unfamiliar.
label: if (a) { f() break label;}code-block.js:1:1 lint/suspicious/noConfusingLabels ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Unexpected label.
> 1 │ label: if (a) {
│ ^^^^^
2 │ f()
3 │ break label;
ℹ Only loops should be labeled.
The use of labels for other statements is suspicious and unfamiliar.
label: switch (a) { case 0: break label;}code-block.js:1:1 lint/suspicious/noConfusingLabels ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Unexpected label.
> 1 │ label: switch (a) {
│ ^^^^^
2 │ case 0:
3 │ break label;
ℹ Only loops should be labeled.
The use of labels for other statements is suspicious and unfamiliar.
Valid
Section titled Validouter: while (a) { while(b) { break outer; }}<script>$: { /* reactive block */ }</script>