JSX attribute quotes

Set formatter.jsxSingleQuote to prefer single quotes in JSX/TSX attributes:

import { defineConfig } from "vize";

export default defineConfig({
  formatter: { singleQuote: false, jsxSingleQuote: true },
});

singleQuote chooses ordinary JavaScript string delimiters. jsxSingleQuote chooses JSX attribute delimiters independently; its default is false. For example, the configuration above formats this script:

const label = "hello";
const view = <div title='world' />;

The preference minimizes escaping. An attribute containing an apostrophe, such as title="it's", keeps double quotes to avoid an entity. On tied quote counts, the preference applies: title="' "" becomes title='' "'.

The setting applies to JSX/TSX scripts, including Vue <script lang="tsx"> and <script lang="jsx"> blocks. Ordinary Vue template HTML attributes retain their existing quote policy. CLI/editor configuration and WASM SFC options expose the setting; native Node formatter options do not expose jsxSingleQuote yet.

Property quotes choose which object keys need quotes and remain independent of JSX attribute quotes.