new Image(), how to know if image 100% loaded or not?
Use the load event:
img = new Image();img.onload = function(){ // image has been loaded};img.src = image_url;Also have a look at:
Using the Promise pattern:
function getImage(url){ return new Promise(function(resolve, reject){ var img = new Image() img.onload = function(){ resolve(url) } img.onerror = function(){ reject(url) } img.src = url }) }And when calling the function we can handle its response or error quite neatly.
getImage('imgUrl').then(function(successUrl){ //do stufff}).catch(function(errorUrl){ //do stuff})