function parseBoard(source) {
  const normalized = source
    .replaceAll('11', '___________')
    .replaceAll('10', '__________')
    .replaceAll('9', '_________')
    .replaceAll('8', '________')
    .replaceAll('7', '_______')
    .replaceAll('6', '______')
    .replaceAll('5', '_____')
    .replaceAll('4', '____')
    .replaceAll('3', '___')
    .replaceAll('2', '__')
    .replaceAll('1', '_')
    .replaceAll('/', '')
    
  return normalized
}

parseBoard('b/qbk/n1b1n/r5r/ppppppppp/11/5P5/4P1P4/3P1B1P3/2P2B2P2/1PRNQBKNRP1')

Test #2

Title *

Async

Code *

function parseBoard(source) {
  let normalized = '';

  for (let i = 0; i < source.length; i++) {
  	const current = source[i]
    if (current === '1') {
      const next = source[i + 1]
      if (next === '0') {
        i++;
        normalized += '__________';
      } else if (next === '1') {
        i++;
        normalized += '___________';
      } else {
        normalized += '_';
      }
    } else if (current === '2') {
      normalized += '__';
    } else if (current === '3') {
      normalized += '___';
    } else if (current === '4') {
      normalized += '____';
    } else if (current === '5') {
      normalized += '_____';
    } else if (current === '6') {
      normalized += '______';
    } else if (current === '7') {
      normalized += '_______';
    } else if (current === '8') {
      normalized += '________';
    } else if (current === '9') {
      normalized += '_________';
    } else if (current !== '/') {
      normalized += source[i];
    }
  }

  return normalized;
}

parseBoard('b/qbk/n1b1n/r5r/ppppppppp/11/5P5/4P1P4/3P1B1P3/2P2B2P2/1PRNQBKNRP1')

Test case details

Preparation Code

Test cases

Test #1

Test #2