问题:从字符串中删除删除注释代码
描述:
solution(weex,rex # and react\nflutter\nnative ssss !hybrid app
, [#
, !
])
写一个solution函数清除后面参数数组里面的字符串
打印效果
代码1
思路:
- 将字符全凡是有去掉标志符号的全部添加\n进行换行;
- 进行循环过滤出没有标识的数组;
- 将数组转换成字符串。
const solution = (str, arr) => {arr.forEach(item => {str = str.replaceAll(item, `\n${item}`);});const newArr = str.split(`\n`).filter(item => {return !arr.includes(item[0]);});return newArr.join(`\n`);}console.log(solution(`weex,rex # and react\nflutter\nnative ssss !hybrid app`, [`#`, `!`]))
代码2
思路:
- 将字符以换行转数字;
- 进行循环将里面包含需要删除字符重新定义;
- 返回所定义的值,拿到新数组;
- 进行对数组转换字符串;
let result = solution("weex, rex # and react\nflutter\nnative !hybrid app", ["#","!",]);function solution(str, arr) {const newList = str.split('\n')let newFilter = newList.map(e => {arr.forEach(item => {e.indexOf(item) != -1 ? e = e.split(item)[0].trim() : e});return e})return newFilter.join("\n")}console.log(result);
代码3
思路:
- 将字符全凡是有去掉标志符号的全部添加\n进行换行;
- 通过双重循环进行重新赋值给对象;
- 进行对对象循二次排除;
- 转换成字符串;
let result = solution("weex, rex # and react\nflutter\nnative !hybrid app", ["#","!",]);function solution(str, arr) {let a = str.split("\n");let b = {};a.forEach((item, index) => {arr.forEach((res) => {b[index] = item.split(res)[0].trim();});});for (const key in b) {arr.forEach((res) => {b[key] = b[key].split(res)[0].trim();});}return Object.values(b).join("\n");}