html lists - Javascript to create an li and append to an ol

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html lists - Javascript to create an li and append to an ol

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

html lists - Javascript to create an li and append to an ol

I'm trying to use JavaScript to create an li and append it to an existing ol. The code I am using is

<ol id=summaryOL>
</ol>

function change(txt) {
var x=document.getElementById("summaryOL");
newLI = document.createElementNS(null,"li");
newText = document.createTextNode(txt);
newLI.appendChild(newText);
x.appendChild(newLI);
}

change("this is the first change");
change("this is the second change");

These should look like:

1. this is ...
2. this is ...

But look like:

this is the first changethis is the second change

I have created a fiddle at: fiddle . Thanks for any help.

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1 Answer

深蓝 · Answer 1 · 2021-10-23T20:07:20+0000

Here is an example - jsfiddle

$(function() {
    var change = function( txt ) {
        $("#summaryOL").append( '<li>' + txt + '</li>' );
    };

    change("this is the first change");
    change("this is the second change");
});

To use jquery, put below code inside of <head></head>

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

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html lists - Javascript to create an li and append to an ol

html lists - Javascript to create an li and append to an ol

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