Javascript 视差对<;脚本>;块
我试图将视差效果应用于脚本块,该脚本块在页面加载的基础上旋转图像。当HTML div的内容是静态的Javascript 视差对<;脚本>;块,javascript,jquery,html,css,Javascript,Jquery,Html,Css,我试图将视差效果应用于脚本块,该脚本块在页面加载的基础上旋转图像。当HTML div的内容是静态的时,它通常工作。因为Javascript查找$(“#视差img”).css,由于将静态替换为随机化()我的视差效果不再起作用,因此不再使用它。我尝试过改变很多事情,但没有成功 如何让“标题视差效果”脚本查找新的动态块,而不是以前的 HTML: Javascript/jQuery: /*Header parallax effect ===================================
时,它通常工作。因为Javascript查找$(“#视差img”).css
,由于将静态
替换为随机化()
我的视差效果不再起作用,因此不再使用它。我尝试过改变很多事情,但没有成功
如何让“标题视差效果”脚本查找新的动态
块,而不是以前的
HTML:
Javascript/jQuery:
/*Header parallax effect
======================================================*/
(function($){
$(document).ready(function(){
$(window).scroll(function(){
var window_scroll_position = $(this).scrollTop();
var parallax_value = window_scroll_position/4;
$('#parallaxical img').css({
'-webkit-transform': 'translateY('+ parallax_value +'px)',
'-moz-transform': 'translateY('+ parallax_value +'px)',
'-o-transform': 'translateY('+ parallax_value +'px)',
'-ms-transform': 'translateY('+ parallax_value +'px)',
'transform': 'translateY('+ parallax_value +'px)'
});
});
$('#parallaxical a').click(function(e){
var title = $(this).attr('title');
_gaq.push(['_trackEvent', 'Takeovers', 'Clickthrough to Page', title]);
});
});
})(jQuery)
/*Header rotate
======================================================*/
function Randomize() {
var images = new Array("images/banner/banner1.jpg","images/banner/banner2.jpg","images/banner/banner3.jpg","images/banner/banner4.jpg");
var imageNum = Math.floor(Math.random() * images.length);
document.getElementById("parallaxical").style.backgroundImage = "url('" + images[imageNum] + "')";
document.getElementById("parallaxical").style.backgroundSize = 'cover';
}
window.onload = Randomize;
这将完成以下工作:
var Randomize = (function() {
var imageDirectory = 'images/banner/';
var images = new Array(
"banner1.jpg",
"banner2.jpg",
"banner3.jpg",
"banner4.jpg"
);
return function() {
//get a random number
var imageNum = Math.floor(Math.random() * images.length);
//create the image
var image = document.createElement('img');
image.src = imageDirectory + images[imageNum];
//add it to the containing element
document.getElementById('parallaxical').appendChild(image);
}
}());
更改
- 我把代码包装在生活中
- 已创建imageDirectory变量。看起来好多了
/*Header parallax effect
======================================================*/
(function($){
$(document).ready(function(){
$(window).scroll(function(){
var window_scroll_position = $(this).scrollTop();
var parallax_value = window_scroll_position/4;
$('#parallaxical img').css({
'-webkit-transform': 'translateY('+ parallax_value +'px)',
'-moz-transform': 'translateY('+ parallax_value +'px)',
'-o-transform': 'translateY('+ parallax_value +'px)',
'-ms-transform': 'translateY('+ parallax_value +'px)',
'transform': 'translateY('+ parallax_value +'px)'
});
});
$('#parallaxical a').click(function(e){
var title = $(this).attr('title');
_gaq.push(['_trackEvent', 'Takeovers', 'Clickthrough to Page', title]);
});
});
})(jQuery)
/*Header rotate
======================================================*/
function Randomize() {
var images = new Array("images/banner/banner1.jpg","images/banner/banner2.jpg","images/banner/banner3.jpg","images/banner/banner4.jpg");
var imageNum = Math.floor(Math.random() * images.length);
document.getElementById("parallaxical").style.backgroundImage = "url('" + images[imageNum] + "')";
document.getElementById("parallaxical").style.backgroundSize = 'cover';
}
window.onload = Randomize;
var Randomize = (function() {
var imageDirectory = 'images/banner/';
var images = new Array(
"banner1.jpg",
"banner2.jpg",
"banner3.jpg",
"banner4.jpg"
);
return function() {
//get a random number
var imageNum = Math.floor(Math.random() * images.length);
//create the image
var image = document.createElement('img');
image.src = imageDirectory + images[imageNum];
//add it to the containing element
document.getElementById('parallaxical').appendChild(image);
}
}());