Question

将类传递给HTML时，我想知道每个元素有多少个类被认为是最佳实践＆＃39;？

例如，愿意;

<html>
I am a </span><select name="parent_selection" id="parent_selection">
            <option value="">-- Please Select --</option>
            <option value="patient">Patient</option>
            <option value="doctor">Doctor or physician</option>
            <option value="school">School or parent</option>
            <option value="worker">Case worker</option>
        </select>
        <br /><span>and I need information on</span>
        <select name="child_selection" id="child_selection" onchange="location = this.options[this.selectedIndex].value;">
        </select>
</html>


<!------answer 1: not wokring --------------->
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<script>

var jq81 = jQuery.noConflict();
jq81(document).ready(function($){
//let's create arrays
var patient = [
    {display: "My initial visit", value: "patients#visit" },
    {display: "My initial evaluation", value: "patients#visit" },
    {display: "My appointments", value: "patients#appointments" },
    {display: "Your payment policies", value: "patients#policies" }];

var doctor = [
    {display: "Our approach", value: "doctors-and-physicians" },
    {display: "Our services", value: "services" },
    {display: "Referring patients", value: "patients#visit" }];

var school = [
    {display: "Our approach", value: "schools-and-parents" },
    {display: "My child's initial evaluation", value: "patients#visit" },
    {display: "Setting appointments", value: "patients#appointments" },
    {display: "Your payment policies", value: "patients#policies" }];

var worker = [
    {display: "Our approach", value: "case-workers" },
    {display: "Insurance policies", value: "clients#insurance" },
    {display: "Your Payment policies", value: "patients#policies" }];

//If parent option is changed
jq81("#parent_selection").change(function() {
        var parent = jq81(this).val(); //get option value from parent

        switch(parent){ //using switch compare selected option and populate child
              case 'patient':
                list(patient);
                break;
              case 'doctor':
                list(doctor);
                break;             
              case 'school':
                list(school);
                break; 
            case 'worker':
                list(worker);
                break;
            default: //default child option is blank
                jq81("#child_selection").html('');  
                break;
           }
});

//function to populate child select box
function list(array_list)
{
    jq81("#child_selection").html(""); //reset child options
    jq81(array_list).each(function (i) { //populate child options
        jq81("#child_selection").append("<option value=\""+array_list[i].value+"\">"+array_list[i].display+"</option>");
    });
}

});

</script>

被视为不正确的做法？

Answer 1

html标记中使用的类名没有限制，它只会影响代码的可读性，并且可能取决于您的团队或公司代码样式规则。

否则，如果您习惯为每个属性编写新类，则应重新考虑代码组织。即使Facebook或其他巨型应用程序最多使用~10个类，通常它不超过5个。

将考虑多少课程和不良实践＆＃39;

1 个答案: