jQuery? ?? ??? ?? ??
??
jQuery? ???? div? ?? ??? ??? ???? ?? ??? ?? ? ????. ??? ?? ??? ?????. ? ????? ? ??? ??? ????? ????? ??? ???? ?????.
??:
??: ?? ???? ??? ?? ? ???? jQuery? ???? div? ??(?? ? ??)? ??????
?? A:
?? ??? ??? ????? ?? ?? ??? ?????.
var image_url = $('#myDiv').css('background-image'),
image;
// Remove url() or url("")
image_url = image_url.match(/^url\("?(.+?)"?\)$/);
if (image_url[1]) {
image_url = image_url[1];
image = new Image();
// Load image if needed
$(image).load(function () {
alert(image.width + 'x' + image.height);
});
image.src = image_url;
}
?? B(2018 ????):
???? ???:
var getBackgroundImageSize = function(el) {
var imageUrl = $(el).css('background-image').match(/^url\(["']?(.+?)["']?\)$/);
var dfd = new $.Deferred();
if (imageUrl) {
var image = new Image();
image.onload = dfd.resolve;
image.onerror = dfd.reject;
image.src = imageUrl[1];
} else {
dfd.reject();
}
return dfd.then(function() {
return { width: this.width, height: this.height };
});
};
???:
getBackgroundImageSize(jQuery('#mydiv'))
.then(function(size) {
console.log('Image size is', size.width, size.height);
})
.fail(function() {
console.log('Could not get size because could not load image');
});? ??? jQuery? ???? Div? ?? ??? ??? ?? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
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