`react-doctor/no-object-or-array-coerced-to-string-in-template-literal`

Object or lossy array coerced in a template literal

Category: Bugs
Severity: warn
Source: oxlint-plugin-react-doctor
Framework: global
Enabled when: always
Default: Enabled

Validate the diagnostic

Confirm the reported code matches this rule before you edit it.

Confirm the reported code matches react-doctor/no-object-or-array-coerced-to-string-in-template-literal. Compare it with the Before example and verify the same API, framework, and execution context. Treat it as a false positive only when one of those conditions differs.

Compare the code

The corrected pattern shows a focused way to address the diagnostic.

Reported pattern

function f() {
  return `obj: ${{ id: 1 }}`;
}

Corrected pattern

function f() {
  return `obj: ${JSON.stringify({ id: 1 })}`;
}

How to fix

Use the corrected pattern as a reference. Preserve behavior that the rule does not require you to change.

Copyable fix prompt

Copy this self-contained prompt into your coding agent after you confirm the diagnostic.

Fix every confirmed react-doctor/no-object-or-array-coerced-to-string-in-template-literal diagnostic in the current repository. Required change: - Interpolating an object or structurally nested array can produce [object Object] or lose structure; read a specific value or use .join/JSON.stringify.

Reference transformation:Before:

function f() {
  return `obj: ${{ id: 1 }}`;
}

After:

function f() {
  return `obj: ${JSON.stringify({ id: 1 })}`;
}

Constraints: - Confirm the reported code matches the Before pattern. - Make the smallest change that fixes the root cause. - Preserve behavior and interfaces unrelated to this diagnostic. - Reuse existing project components, utilities, and conventions. - Do not introduce render-phase side effects, render-phase state updates, or Hooks rule violations. - Adapt identifiers and framework details instead of copying blindly. - Do not disable the rule or suppress matching code. Verification: - Run focused tests for the changed behavior. - Run React Doctor and confirm this diagnostic no longer appears. - Report the files changed and any checks you could not run.

More Bugs rules from the rules reference:

react-doctor/no-pass-data-to-parent: Disallow passing data to parents in an effect.
react-doctor/no-pass-live-state-to-parent: Disallow passing live state to parents in an effect.
react-doctor/no-predicate-function-reference-in-boolean-position: Predicate function used without calling it
react-doctor/no-prevent-default: Use `<form action={serverAction}>` (works without JS) or `<button>` instead of `<a>` with preventDefault
react-doctor/no-promise-then-side-effect-in-effect-without-catch: Effect promise .then sets state with no catch

react-doctor/no-object-or-array-coerced-to-string-in-template-literal