The onloadstart
property of the GlobalEventHandlers
mixin is an EventHandler
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 | Status | Comment |
---|---|---|
HTML Living Standard onloadstart |
Living Standard | Initial definition |
Browser Compatibility
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