Convert string to Dom node javascript? - Stack Overflow

admin管理员组

文章数量:1330659

i have this code

var tmpEl = document.createElement('div')
tmpEl.innerHTML = stringEl;
return tmpEl.firstChild

which i use for converting text to Dom node. The problem is that if stringEl contains <tr> tag i must create table tag not div for this to work.Also if want this code to work with stringEl contaning li tag i must create ol or ul insted of div tag. Is there any generic for converting string to Dom node?
Best Regards,
Iordan

i have this code

var tmpEl = document.createElement('div')
tmpEl.innerHTML = stringEl;
return tmpEl.firstChild

which i use for converting text to Dom node. The problem is that if stringEl contains <tr> tag i must create table tag not div for this to work.Also if want this code to work with stringEl contaning li tag i must create ol or ul insted of div tag. Is there any generic for converting string to Dom node?
Best Regards,
Iordan

• javascript
• dom

Share Follow asked Oct 19, 2012 at 13:50 IordanTanevIordanTanev 6,25055 gold badges4141 silver badges4949 bronze badges 2

• If you provide different values of your stringEl and what you expect at the end, it might be helpful for understanding your problem. – skovalyov Commented Oct 19, 2012 at 13:54
• I think you underestimate the plexity of this problem. This snippet is useful when you deal with the restricted set of elements, but it's way too loose if intended to be generic. Check the related functions of jQuery (.parseHTML, .buildFragment) to see how it's solved there; hint: it's far from 3 lines of code. – raina77ow Commented Oct 19, 2012 at 13:58

Add a ment  | 

2 Answers 2

Sorted by: Reset to default 3

There is a method of DOM Range designed for this: createContextualFragment(). It's specified in the DOM Parsing and Serialization spec and is implemented Mozilla, WebKit and Opera browsers (but not IE, yet).

Here's an example: http://jsfiddle/gbWCS/

HTML:

<table id="table">
    <tr id="firstRow"><td>One</td><td>Two</td></tr>
</table>

JavaScript:

var html = "<tr><td>Three</td><td>Four</td></tr>";
var table = document.getElementById("table");
var range = document.createRange();
range.selectNodeContents(table);
var frag = range.createContextualFragment(html);
table.appendChild(frag);

function domNode(nodeType, text) {
var node = document.createElement(nodetype);
node.appendChild(document.createTextNode(text));
return node;
}

domNode('p', 'Hello World!');

Something like that allows you to choose a tag.

Edit: In fact...

function domNode(nodeType, text) {
    var node = document.createElement(nodetype);
    if (text) node.appendChild(document.createTextNode(text));
    return node;
    }

var myList = domNode('ul').appendChild(domNode('li', 'This is a list item!'));

本文标签： Convert string to Dom node javascriptStack Overflow