manipulate text

manipulate-text.js

function manipulateText(text, command) {
  let cursor = 0;
  let result = text.split('');

  for (let i = 0; i < command.length; i++) {
    const currentCommand = command[i];

    if (currentCommand === 'h') {
      cursor = Math.max(0, cursor - 1);
    } else if (currentCommand === 'l') {
      cursor = Math.min(result.length - 1, cursor + 1);
    } else if (currentCommand === 'r' && i + 1 < command.length) {
      const newChar = command[i + 1];
      result[cursor] = newChar;
      i++;
    }
  }

  return `${result.join('')} - cursor: ${cursor}`;
}