JQuery 获取动态添加的图片在追加之前的高度 DOM
JQuery Get the height of dynamically added pictures before appending into the DOM
这个问题很简单,我的目的是稍后根据图片使用的垂直 space 将图片附加到 3 个不同的列中,这就是我需要知道高度的原因图片的数量。
以下是我的脚本
$( document ).ready(function() {
//----------------------------------image feed-----------------------------
//random generator
//array length
arr = []; arr.length = 94; //Number of images
$.each(arr, function(i,v){v = i+1; arr[i] = v;});
//random
var i= arr.length, j, temp;
while(--i > 0){
j = Math.floor(Math.random() * (i + 1));
temp = arr[j]; arr[j] = arr[i]; arr[i]=temp;
};
//end of image feed and random
//load all thumbnails
window.imagesThumb = [];
$.each(arr, function(i,v){
myImagethumb = $(new Image()).attr({
"src":"img/pictures/thumbnails/img"+v+".jpg",
"id":v,
"class":"image"
});
imagesThumb[i] = myImagethumb;
});
//--------------------------------END OF IMAGE FEED-------------------------
});
异步加载时尝试以下操作:
var i = new Image;
i.src= 'https://YOUR_IMAGESRC';
i.onload = function(){ console.log(i.width, i.height) }
所以基本上,使用您的代码,您只需要做:
myImagethumb.onload = function(){/**...*/}
var i = new Image;
i.src= 'https://media.giphy.com/media/l0HlSF89is7bCAjte/giphy.gif';
i.onload = function(){ alert(i.width); alert(i.height) }
这个问题很简单,我的目的是稍后根据图片使用的垂直 space 将图片附加到 3 个不同的列中,这就是我需要知道高度的原因图片的数量。
以下是我的脚本
$( document ).ready(function() {
//----------------------------------image feed-----------------------------
//random generator
//array length
arr = []; arr.length = 94; //Number of images
$.each(arr, function(i,v){v = i+1; arr[i] = v;});
//random
var i= arr.length, j, temp;
while(--i > 0){
j = Math.floor(Math.random() * (i + 1));
temp = arr[j]; arr[j] = arr[i]; arr[i]=temp;
};
//end of image feed and random
//load all thumbnails
window.imagesThumb = [];
$.each(arr, function(i,v){
myImagethumb = $(new Image()).attr({
"src":"img/pictures/thumbnails/img"+v+".jpg",
"id":v,
"class":"image"
});
imagesThumb[i] = myImagethumb;
});
//--------------------------------END OF IMAGE FEED-------------------------
});
异步加载时尝试以下操作:
var i = new Image;
i.src= 'https://YOUR_IMAGESRC';
i.onload = function(){ console.log(i.width, i.height) }
所以基本上,使用您的代码,您只需要做:
myImagethumb.onload = function(){/**...*/}
var i = new Image;
i.src= 'https://media.giphy.com/media/l0HlSF89is7bCAjte/giphy.gif';
i.onload = function(){ alert(i.width); alert(i.height) }