如何使用 jQuery 将新项目添加到列表末尾?
我有这个功能,可以将新项目添加到列表的开头并删除最后一个项目:
function addItem(id, text){
var el = $('#' + id);
var w = el.width();
el.css({
width: w,
overflow: 'hidden'
});
var ulPaddingLeft = parseInt(el.css('padding-left'));
var ulPaddingRight = parseInt(el.css('padding-right'));
el.prepend('<li>' + text + '</li>');
var first = $('li:first', el);
var last = $('li:last', el);
var fow = first.outerWidth();
var widthDiff = fow - last.outerWidth();
var oldMarginLeft = first.css('margin-Left');
first.css({
marginLeft: 0 - fow,
position: 'relative',
left: 0 - ulPaddingLeft
});
last.css('position', 'relative');
el.animate({ width: w + widthDiff }, 1500);
first.animate({ left: 0 }, 250, function() {
first.animate({ marginLeft: oldMarginLeft }, 1000, function() {
last.animate({ left: ulPaddingRight }, 250, function() {
last.remove();
el.css({
width: 'auto',
overflow: 'visible'
});
});
});
});
}
如何让它以相反的方式工作?我想将项目添加到末尾并删除第一个项目,并使其以相反的方式滑动,例如从右到左。
I have this function for adding a new item to the beginning of the list and removing the last one:
function addItem(id, text){
var el = $('#' + id);
var w = el.width();
el.css({
width: w,
overflow: 'hidden'
});
var ulPaddingLeft = parseInt(el.css('padding-left'));
var ulPaddingRight = parseInt(el.css('padding-right'));
el.prepend('<li>' + text + '</li>');
var first = $('li:first', el);
var last = $('li:last', el);
var fow = first.outerWidth();
var widthDiff = fow - last.outerWidth();
var oldMarginLeft = first.css('margin-Left');
first.css({
marginLeft: 0 - fow,
position: 'relative',
left: 0 - ulPaddingLeft
});
last.css('position', 'relative');
el.animate({ width: w + widthDiff }, 1500);
first.animate({ left: 0 }, 250, function() {
first.animate({ marginLeft: oldMarginLeft }, 1000, function() {
last.animate({ left: ulPaddingRight }, 250, function() {
last.remove();
el.css({
width: 'auto',
overflow: 'visible'
});
});
});
});
}
How can I make it work the other way around ? I want to add the item to the end and remove the first and also make it slide the other way around, like right to left.
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看一下 jQuery.append (以及用于列表开头的 jQuery.prepend)
Take a look at jQuery.append (and jQuery.prepend for beginning of list)
你的代码看起来真的很复杂。稍微简化一下可能会给你这样的结果:
祝你好运!
Your code seems really complicated. Simplifying it a little bit might give you something like this:
Good luck!