dynamically create element using jquery

问题

I am trying to create element using jquery. When i click on a link, i want to create an element "p", give it some text, and then put it in one of my divs. Also, i want to check which link is clicked on, so i can put the created "p" in the right div. Any solutions on where i am doing it wrong?

Javascript/Jquery

$(document).ready(function () {

function createElement() {
  var a = $("#menu").find('a').each(function(){
    if(a == "l1"){
    var text = $(document.createElement('p');
    $('p').text("Hej");
    $("#contentl1").append("text");
    }
  });
}

$("#menu").find('a').each(function () {
    $(this).click(function () {
        createElement();
    });
});

createElement();

});

HTML

      <html>

<head>
<title>Inl1-1</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link rel="stylesheet" type="text/css" href="style-1.css">
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" src="Uppg1.js"></script>
</head>

<body>

<ul class="meny" id="menu">
<li><a href="#" id="l1">Utvärdering/Feedback</a></li>
<li><a href="#" id="l2">Kontakt</a></li>
<li><a href="#" id="l3">Öppettider</a></li>
<li><a href="#" id="l4">Om Asperöd</a></li>
</ul>

<div id="contentl1">

</div>

<div id="contentl2">

</div>

<div id="contentl3">

</div>

<div id="contentl4">

</div>

</body>

</html>

回答1:

Here is the best way to add new <p> element with text "Hej" to #contentl1 using jQuery:

$("<p />", { text: "Hej" }).appendTo("#contentl1");

回答2:

function createElement() {
  var a = $("#menu").find('a').each(function(){
    if(a == "l1"){
    var p = $("<p>");
    p.text("Hej");
    $("#contentl1").append(p);
    }
  });
}

回答3:

For a start the click function can be done like this instead of having to use .find():

$('#menu a').click(function() { }

The .each() loop can be done like:

$('#menu a').each(function () {
    var aId = $(this).attr('id');
    var contentId = content + aId;
    $(contentId).append('<p>Hej</p>');
})

回答4:

I know it doesn't realate to answering your question but it is hard to leave this as a comment:

var a = $("#menu").find('a').each(function(){ <-- this "a" will only be created after the each completes
    if(a == "l1"){ <-- this "a" that you are verifying is a global variable
    var text = $(document.createElement('p');
    $('p').text("Hej");
    $("#contentl1").append("text");
    }
  });

You can try this to solve your issue:

function createElement() {
  if($(this).attr("id") == "l1"){
   $("#contentl1").append('<p>hej</p>');
  }
}

$("#menu a").each(function () {
    $(this).click(function () {
        createElement.apply(this);
    });
});

回答5:

Something like this fiddle?

$('#menu').on('click', 'a', function(e) {
    e.preventDefault();
    $('<p>').text($(this).text()).appendTo('#content'+this.id);
});

回答6:

try this script, it'll do place the text in correct div.

$(document).ready(function () {

$("#menu").find('a').each(function () {
    $(this).on('click',function () {
        $("#content"+$(this).attr("id")).append("<p>link "+$(this).attr("id")+" is clicked</p>");
    });
});


});

来源：https://stackoverflow.com/questions/14725248/dynamically-create-element-using-jquery

标签

javascript

jquery

html

createelement