常用JS

$_format = function (source, params) {
    if (arguments.length == 1)
        return function () {
            var args = $.makeArray(arguments);
            args.unshift(source);
            return $.validator.format.apply(this, args);
        };
    if (arguments.length > 2 && params.constructor != Array) {
        params = $.makeArray(arguments).slice(1);
    }
    if (params.constructor != Array) {
        params = [params];
    }
    $.each(params, function (i, n) {
        source = source.replace(new RegExp("\\{" + i + "\\}", "g"), isNull(n) ? ‘‘ : n);
    });
    return source;
};

//获取URL参数
function GetQueryString(name) {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
    var r = window.location.search.substr(1).match(reg);
    if (r != null) return r[2]; return null;
}

function FilterPasteText(str) {
    if (!str) {
        return ‘‘;
    }
    //str = str.replace(/[\n\r]/ig, "");
    //remove html body form
    str = str.replace(/<\/?(html|body|form)(?=[\s\/>])[^>]*>/ig, "");
    //remove doctype
    str = str.replace(/<(!DOCTYPE)([^<>])*?>/ig, "");
    //remove xml tags
    str = str.replace(/<(\/?(\?xml(:\w+)?|xml|\w+:\w+)(?=[\s\/>]))[^>]*>/gi, "");
    //remove head
    str = str.replace(/<head[^>]*>[\s\S]*?<\/head>/ig, "");
    //remove <xxx />
    str = str.replace(/<(script|style|link|title|meta|textarea|option|select|iframe|hr)[\s\S]*?\/>/ig, "");
    //remove empty span
    str = str.replace(/<span[^>]*?><\/span>/ig, "");
    //remove <xxx>...</xxx>
    str = str.replace(/<(head|script|style|textarea|button|select|option|iframe)[^>]*?>[\s\S]*?<\/\1>/ig, "");
    str = str.replace(/<(head|script|style|textarea|button|select|option|iframe)[^>]*?>/ig, "");
    //remove table and <a> tag, <img> tag,<input> tag (this can help filter unclosed tag)
    str = str.replace(/<\/?(a|table|tr|td|tbody|thead|th|img|input|iframe|div)[^>]*>/ig, "");
    //remove bad attributes
    do {
        len = str.length;
        str = str.replace(/(<[a-z][^>]*\s)(?:id|name|language|type|class|on\w+|\w+:\w+)=(?:"[^"]*"|\w+)\s?/gi, "$1");
        str = str.replace(/[<>]/gi, "");
    } while (len != str.length);

    return str;
}