字符串去除多余的空格
function trimExtraSpaces(str) {
return str.trim().replace(/\s+/g, ' ');
}
console.log(trimExtraSpaces(" Hello World! ")); // "Hello World!"
字符串去除多余的空格
https://blog.fullsize.cn/2025/03/28/notion/zi-fu-chuan-qu-chu-duo-yu-de-kong-ge/