Jquery 通过多个数字范围进行过滤
我认为我陷入了困境......我正在尝试获取项目列表并根据对象的属性创建过滤器。我将其简化为一个更简单的书籍示例,其中包含成本和年份。我当前在页面上有一个书籍列表和过滤器(复选框),可以选择这些过滤器仅显示一定成本和/或年份范围内的书籍。这是我到目前为止的代码:
<div id="filters">
<h1>FILTERS</h1>
<div class="filter filter_cost">
<input class="target" type="checkbox" min="0" max="9" />Under $10.00<br/>
<input class="target" type="checkbox" min="10" max="19" />$10-$19<br/>
<input class="target" type="checkbox" min="20" max="29" />$20-$29<br/>
<input class="target" type="checkbox" min="30" max="39" />$30-$39<br/>
<input class="target" type="checkbox" min="40" max="1000" />$40 and Over<br/>
</div>
<div class="filter filter_year">
<input class="target" type="checkbox" min="1700" max="1799" />18th Century<br/>
<input class="target" type="checkbox" min="1800" max="1899" />19th Century<br/>
<input class="target" type="checkbox" min="1900" max="1999" />20th Century<br/>
<input class="target" type="checkbox" min="2000" max="2999" />21st Centruy<br/>
</div>
</div>
<div id="books">
<h1>BOOKS</h1>
<div class="book">
<h1>Book 1</h1>
<input type="hidden" name="cost" value="13" />
<input type="hidden" name="year" value="1997" />
</div>
<div class="book">
<h1>Book 2</h1>
<input type="hidden" name="cost" value="22" />
<input type="hidden" name="year" value="1872" />
</div>
</div>
和我的 jQuery(使用 1.6.2):
$(document).ready(function () {
$("input.target").change(function () {
filterResults();
});
});
function filterResults(){
$(".book").each(function () {
var cost = $(this).find("input[name='cost']").val();
var year = $(this).find("input[name='year']").val();
var cover = $(this).find("input[name='cover']").val();
var isHidden = false;
//console.log("Cost in Range: "+filterRange(cost, ".filter_cost"));
//console.log("Year in Range: "+filterRange(year, ".filter_year"));
var filterCost = filterRange(cost, ".filter_cost")?showBook($(this)):hideBook($(this));
var filterYear = filterRange(year, ".filter_year")?showBook($(this)):hideBook($(this));
isHidden?"":filterCost;
isHidden?"":filterYear;
function showBook(obj) {
obj.show();
}
function hideBook(obj) {
isHidden = true;
obj.hide();
}
})
}
function filterRange(amount, elem) {
var checkedInputs = $(elem).find("input:checked").length;
var totalInputs = $(elem).find("input").length;
var inRange = function(){
$(elem).find("input:checked").each(function () {
var min = $(this).attr('min');
var max = $(this).attr('max');
if(amount >= min && amount <= max){
return true;
} else {
return false;
}
});
};
if(checkedInputs == 0 || totalInputs == checkedInputs ){
return true;
}
if(inRange()){
return true;
} else {
return false;
}
}
我的问题是,在 filterRange
函数中,我不确定如何根据每个输入创建一系列条件已检查。因此价格范围可能是 10-19 和 30-39。我的尝试(var inRange
)是遍历每个检查的输入,检查成本是否在范围内,然后返回 true,否则返回 false。我想我只是从根本上偏离了轨道,不确定这种方法是否有效。任何意见将不胜感激。
Think I'm getting stuck... I'm attempting to take a list of items and create filters based on attributes to the object. I stripped it down into an easier example of books with a cost and year. I currently have a list of books on the page and filters (checkboxes) that can be selected to only show books within a range of cost and/or year. Here is the code I have so far:
<div id="filters">
<h1>FILTERS</h1>
<div class="filter filter_cost">
<input class="target" type="checkbox" min="0" max="9" />Under $10.00<br/>
<input class="target" type="checkbox" min="10" max="19" />$10-$19<br/>
<input class="target" type="checkbox" min="20" max="29" />$20-$29<br/>
<input class="target" type="checkbox" min="30" max="39" />$30-$39<br/>
<input class="target" type="checkbox" min="40" max="1000" />$40 and Over<br/>
</div>
<div class="filter filter_year">
<input class="target" type="checkbox" min="1700" max="1799" />18th Century<br/>
<input class="target" type="checkbox" min="1800" max="1899" />19th Century<br/>
<input class="target" type="checkbox" min="1900" max="1999" />20th Century<br/>
<input class="target" type="checkbox" min="2000" max="2999" />21st Centruy<br/>
</div>
</div>
<div id="books">
<h1>BOOKS</h1>
<div class="book">
<h1>Book 1</h1>
<input type="hidden" name="cost" value="13" />
<input type="hidden" name="year" value="1997" />
</div>
<div class="book">
<h1>Book 2</h1>
<input type="hidden" name="cost" value="22" />
<input type="hidden" name="year" value="1872" />
</div>
</div>
And my jQuery (using 1.6.2):
$(document).ready(function () {
$("input.target").change(function () {
filterResults();
});
});
function filterResults(){
$(".book").each(function () {
var cost = $(this).find("input[name='cost']").val();
var year = $(this).find("input[name='year']").val();
var cover = $(this).find("input[name='cover']").val();
var isHidden = false;
//console.log("Cost in Range: "+filterRange(cost, ".filter_cost"));
//console.log("Year in Range: "+filterRange(year, ".filter_year"));
var filterCost = filterRange(cost, ".filter_cost")?showBook($(this)):hideBook($(this));
var filterYear = filterRange(year, ".filter_year")?showBook($(this)):hideBook($(this));
isHidden?"":filterCost;
isHidden?"":filterYear;
function showBook(obj) {
obj.show();
}
function hideBook(obj) {
isHidden = true;
obj.hide();
}
})
}
function filterRange(amount, elem) {
var checkedInputs = $(elem).find("input:checked").length;
var totalInputs = $(elem).find("input").length;
var inRange = function(){
$(elem).find("input:checked").each(function () {
var min = $(this).attr('min');
var max = $(this).attr('max');
if(amount >= min && amount <= max){
return true;
} else {
return false;
}
});
};
if(checkedInputs == 0 || totalInputs == checkedInputs ){
return true;
}
if(inRange()){
return true;
} else {
return false;
}
}
My issue is that in the filterRange
function I'm not sure how to create a range of conditionals based on each input that is checked. So that a price range could be 10-19 and 30-39. My attempt (var inRange
) was to go through each checked input, check if the cost was with in the range, then return true, else return false. I think I'm just fundamentally getting off track and unsure if this method would work at all. Any input would be much appreciated.
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在 jquery 中,dom 元素返回语句上的每个循环都会跳出循环。所以你的实现是错误的。试试这个。
In the jquery each loop on dom element return statement breaks out of the loop. So your implemenation is wrong. Try this.
尝试:
Try: