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tools: add docs for prefer-util-format-errors rule #17376

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tools: add docs for prefer-util-format-errors rule #17376

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5 changes: 5 additions & 0 deletions tools/eslint-rules/prefer-util-format-errors.js
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,11 @@ module.exports = {
if (!isArrowFunctionWithTemplateLiteral(msg))
return;

// Checks to see if order of arguments to function is the same as the
// order of them being concatenated in the template string. The idea is
// that if both match, then you can use `util.format`-style args.
// Would pass rule: (a, b) => `${b}${a}`.
// Would fail rule: (a, b) => `${a}${b}`, and needs to be rewritten.
const { expressions } = msg.body;
const hasSequentialParams = msg.params.every((param, index) => {
const expr = expressions[index];
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