摘要： JS去除空格函数str为要去除空格的字符串:去除所有空格: str = str.replace(/\s+/g,""); 去除两头空格: str= str.replace(/^\s+|\s+$/g,"");去除左空格：str=str.replace( /^\s*/, '');去除右空格：str=str.replace(/(\s*$)/g, "");JS去除重复元素var a = new Array(1, 1, 1, 2, 3, 4, 1, 2, 5, 11);alert(a.reverse().join(",& 阅读全文