JavaScript HTML DOM-dokument
Die HTML DOM-dokumentobjek is die eienaar van alle ander voorwerpe in jou webblad.
Die HTML DOM Dokument Object
Die dokumentvoorwerp verteenwoordig jou webblad.
As jy toegang tot enige element in 'n HTML-bladsy wil verkry, begin jy altyd met toegang tot die dokumentvoorwerp.
Hieronder is 'n paar voorbeelde van hoe jy die dokumentvoorwerp kan gebruik om toegang tot HTML te verkry en te manipuleer.
Vind HTML-elemente
| Method | Description |
|---|---|
| document.getElementById(id) | Find an element by element id |
| document.getElementsByTagName(name) | Find elements by tag name |
| document.getElementsByClassName(name) | Find elements by class name |
Verandering van HTML-elemente
| Property | Description |
|---|---|
| element.innerHTML = new html content | Change the inner HTML of an element |
| element.attribute = new value | Change the attribute value of an HTML element |
| element.style.property = new style | Change the style of an HTML element |
| Method | Description |
| element.setAttribute(attribute, value) | Change the attribute value of an HTML element |
Byvoeging en verwydering van elemente
| Method | Description |
|---|---|
| document.createElement(element) | Create an HTML element |
| document.removeChild(element) | Remove an HTML element |
| document.appendChild(element) | Add an HTML element |
| document.replaceChild(new, old) | Replace an HTML element |
| document.write(text) | Write into the HTML output stream |
Voeg gebeurtenishanteerders by
| Method | Description |
|---|---|
| document.getElementById(id).onclick = function(){code} | Adding event handler code to an onclick event |
Vind HTML-voorwerpe
Die eerste HTML DOM Vlak 1 (1998), het 11 HTML-voorwerpe, voorwerpversamelings en -eienskappe gedefinieer. Dit is steeds geldig in HTML5.
Later, in HTML DOM Vlak 3, is meer voorwerpe, versamelings en eienskappe bygevoeg.
| Property | Description | DOM |
|---|---|---|
| document.anchors | Returns all <a> elements that have a name attribute | 1 |
| document.applets | Deprecated | 1 |
| document.baseURI | Returns the absolute base URI of the document | 3 |
| document.body | Returns the <body> element | 1 |
| document.cookie | Returns the document's cookie | 1 |
| document.doctype | Returns the document's doctype | 3 |
| document.documentElement | Returns the <html> element | 3 |
| document.documentMode | Returns the mode used by the browser | 3 |
| document.documentURI | Returns the URI of the document | 3 |
| document.domain | Returns the domain name of the document server | 1 |
| document.domConfig | Obsolete. | 3 |
| document.embeds | Returns all <embed> elements | 3 |
| document.forms | Returns all <form> elements | 1 |
| document.head | Returns the <head> element | 3 |
| document.images | Returns all <img> elements | 1 |
| document.implementation | Returns the DOM implementation | 3 |
| document.inputEncoding | Returns the document's encoding (character set) | 3 |
| document.lastModified | Returns the date and time the document was updated | 3 |
| document.links | Returns all <area> and <a> elements that have a href attribute | 1 |
| document.readyState | Returns the (loading) status of the document | 3 |
| document.referrer | Returns the URI of the referrer (the linking document) | 1 |
| document.scripts | Returns all <script> elements | 3 |
| document.strictErrorChecking | Returns if error checking is enforced | 3 |
| document.title | Returns the <title> element | 1 |
| document.URL | Returns the complete URL of the document | 1 |