JS去除空格和换行的正则表达式(推荐)

//去除空格 String.prototype.Trim = function() { return this.replace(//s+/g, ""); } //去除换行 function ClearBr(key) { key = key.replace(/<//?.+?>/g,""); key = key.replace(/[/r/n]/g, ""); return key; } //去除左侧空格 function LTrim(str) { return str.replace(/^/s*/g,""); } //去右空格 function RTrim(str) { return str.replace(//s*$/g,""); } //去掉字符串两端的空格 function trim(str) { return str.replace(/(^/s*)|(/s*$)/g, ""); } //去除字符串中间空格 function CTim(str) { return str.replace(//s/g,''); } //是否为由数字组成的字符串 function is_digitals(str) { var reg=/^[0-9]*$/; //匹配整数 return reg.test(str); }