panates / jsopen-objects / 24282533777

coverage: 93.857% (+0.4%) from 93.463%
24282533777

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erayhanoglu 
2.2.1

134 of 150 branches covered (89.33%)

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523 of 550 relevant lines covered (95.09%)

26.75 hits per line

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65.63
/src/update-error-message.ts
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/**
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 * Updates the error message and stack trace at sametime.
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 * @param err
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 * @param newMessage
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 */
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export function updateErrorMessage(err: Error, newMessage: string) {
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  err.message = String(newMessage);
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  const stack = typeof err.stack === 'string' ? err.stack : null;
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  if (!stack) return err;
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  const name = err.name || 'Error';
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  const lines = stack.split('\n');
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  const firstFrameIdx = lines.findIndex(l => /^\s*at\s+/.test(l));
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  if (firstFrameIdx === -1) {
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    const msgLines = String(newMessage).split(/\r?\n/);
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    lines[0] = `${name}: ${msgLines[0] ?? ''}`;
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    lines.splice(1, 0, ...msgLines.slice(1));
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    err.stack = lines.join('\n');
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    return err;
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  }
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  const frameLines = lines.slice(firstFrameIdx);
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  const msgLines = String(newMessage).split(/\r?\n/);
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  const newHead = [`${name}: ${msgLines[0] ?? ''}`, ...msgLines.slice(1)];
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  err.stack = [...newHead, ...frameLines].join('\n');
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  return err;
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}
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