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(",").match(/([^,]+)(?!.*\1)/ig).reverse());