GlobalEventHandlers.onloadstart
The onloadstart
property of the
GlobalEventHandlers
mixin is an event handler representing
the code to be called when the loadstart
event is raised (when progress has
begun on the loading of a resource.)
Syntax
img.onloadstart = funcRef;
Value
funcRef
is the handler function to be called when the resource's
loadstart
event fires.
Examples
HTML content
<img src="myImage.jpg">
JavaScript content
// 'loadstart' fires first, then 'load', then 'loadend'
image.addEventListener('load', function(e) {
console.log('Image loaded');
});
image.addEventListener('loadstart', function(e) {
console.log('Image load started');
});
image.addEventListener('loadend', function(e) {
console.log('Image load finished');
});
Specifications
Specification |
---|
HTML Standard # handler-onloadstart |
Browser compatibility
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