ECMAScript proposal: Error cause (chaining errors) All In One

ECMAScript proposal: Error cause (chaining errors) All In One

function readFiles(filePaths) {
  return filePaths.map(
    (filePath) => {
      try {
        const text = readText(filePath);
        const json = JSON.parse(text);
        return processJson(json);
      } catch (error) {
        // (A)
      }
    });
}

throw new Error(error info =, {cause: error});

function readFiles(filePaths) {
  return filePaths.map(
    (filePath) => {
      try {
        // ···
      } catch (error) {
        // ✅
        throw new Error(`While processing ${filePath}`, {cause: error});
      }
    });
}

refs

https://2ality.com/2021/06/error-cause.html

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