JavaScript字符串精确匹配变量进行分割与过滤教程

let str = 'a abc a a bac';
let m = 'a';
let result = str.split(m);
console.log(result); // 输出: ["", " bc ", " ", " b", "c"]

const str = 'a abc a a bac';
const words = str.split(/\s+/);
console.log(words); // 输出: ["a", "abc", "a", "a", "bac"]

const m = 'a';
const filteredWords = words.filter(word => word !== m);
console.log(filteredWords); // 输出: ["abc", "bac"]

const str = 'a abc a a bac';
const m = 'a';

// 1. 使用/\s+/分割字符串为单词数组
// 2. 使用filter()过滤掉与变量m精确匹配的单词
const result = str.split(/\s+/).filter(word => word !== m);

console.log(result); // 预期输出: ["abc", "bac"]

/**
 * 从字符串中移除精确匹配指定变量的单词。
 *
 * @param {string} inputString 原始输入字符串。
 * @param {string} targetWord 要精确匹配并移除的目标单词。
 * @returns {string[]} 移除目标单词后的单词数组。
 */
function removeExactWordMatch(inputString, targetWord) {
  if (typeof inputString !== 'string' || typeof targetWord !== 'string') {
    console.error("输入参数必须是字符串。");
    return [];
  }

  // 使用一个或多个空白字符作为分隔符，将字符串分割成单词数组
  // 然后过滤掉所有与targetWord精确匹配的单词
  return inputString.split(/\s+/).filter(word => word !== targetWord);
}

// 示例用法
const myString = 'a abc a a bac another_a';
const wordToRemove = 'a';

const processedWords = removeExactWordMatch(myString, wordToRemove);
console.log(`原始字符串: "${myString}"`);
console.log(`要移除的单词: "${wordToRemove}"`);
console.log(`处理结果: `, processedWords); // 输出: ["abc", "bac", "another_a"]

const anotherString = 'hello world hello again';
const removeHello = 'hello';
console.log(`\n原始字符串: "${anotherString}"`);
console.log(`要移除的单词: "${removeHello}"`);
console.log(`处理结果: `, removeExactWordMatch(anotherString, removeHello)); // 输出: ["world", "again"]

const emptyString = '';
const removeEmpty = 'a';
console.log(`\n原始字符串: "${emptyString}"`);
console.log(`要移除的单词: "${removeEmpty}"`);
console.log(`处理结果: `, removeExactWordMatch(emptyString, removeEmpty)); // 输出: []