使用节点js / javascript替换字符串的最后一个单词

function replaceLastWord(str, newWord) {
  // 使用正则表达式匹配最后一个单词，并替换为新的单词
  return str.replace(/\b(\w+)\b(?=\s*$)/, newWord);
}

const sentence = "I love coding";
const newWord = "programming";

const newSentence = replaceLastWord(sentence, newWord);
console.log(newSentence); // 输出: "I love programming"

function replaceLastWord(str, newWord) {
  // 将字符串分割成单词数组
  const words = str.split(' ');

  // 替换数组中最后一个单词
  words[words.length - 1] = newWord;

  // 将数组重新组合成字符串
  return words.join(' ');
}

const sentence = "I love coding";
const newWord = "programming";

const newSentence = replaceLastWord(sentence, newWord);
console.log(newSentence); // 输出: "I love programming"