Please use regular realize String.trim ()

　　String.prototype.trim1=function(){
　　　　return this.replace(/(^\s*)|(\s*$)/g,"");
　　};

 

 

Write a function, to clear a space before and after the string (compatible with all browsers)

 

　　function trim1(str){
　　　　return str.replace(/(^\s*)|(\s*$)/g,"");
　　}