我试图在方程式中的两个不同时间进行四舍五入,但我一直以小数结尾。理想情况下,该等式应采用“镜头”,将其乘以 12,四舍五入到最接近的整数,乘以 3.5,乘以 1.05%,再次四舍五入到最接近的整数,并将其作为“总计”的值用于“picketQuantity”的值。不幸的是,我不断得到小数,答案与我的预期相差甚远。例如,如果您在“footage”中输入“100”,在“fenceHeight”中输入“6ft”,理想情况下为“total”和“1x3.5x6”,因此“picketQuantity”应该返回 361,但我得到的是 447.3。
如果有人能指出我哪里出错了,将不胜感激。谢谢大家!这是一个 JSFiddle - http://jsfiddle.net/gv0029/xw3DA/
HTML:
<form>
<fieldset id="fence">
<div name="inputFence" class="inputFence">
<legend><strong>Fence Description</strong>
</legend>
<label>Footage:
<input name="footage_1" class="footage" />
</label>
<select name="fenceHeight_1" class="fenceHeight">
<option value="select">Select Fence Height</option>
<option value="6" id="fH6">6 Ft.</option>
<option value="8" id="fH8">8 Ft.</option>
</select>
<select name="fenceStyle_1" class="fenceStyle">
<option value="select">Style</option>
<option value="bnb" id="bnb">Board on Board</option>
<option value="sbs" id="sbs">Side By Side</option>
</select>
<select name="picketSize_1" class="picketSize">
<option value="select">Picket Size</option>
<option value="1x3.5x6" id="1x4">1 x 3.5 x 6</option>
<option value="1x4x6" id="1x4">1 x 4 x 6</option>
<option value="1x5x6" id="1x4">1 x 5 x 6</option>
<option value="1x5.5x6" id="1x4">1 x 5.5 x 6</option>
<option value="1x6x6" id="1x4">1 x 6 x 6</option>
</select>
<legend><strong>Post Type</strong>
</legend>
<label>Picket Quantity
<input name="picketQuantity_1" class="picketQuantity" />
</label>
</div>
</fieldset>
</form>
JS:
//Quantity for Pickets
$(document.body).on('keypress keydown keyup change', '[class^="footage"],[class^="fenceHeight"], [class^="picketSize"],[class^="fenceStyle"], [class^="picketQuantity"]', function() {
var parts = $(this).attr('name').split("_");
fenceNumber = parts[1],
footage = parseFloat($(":input[name='footage_" + fenceNumber + "'" + ']').val(), 10),
fenceHeight = $(":input[name='fenceHeight_" + fenceNumber + "'" + ']').find('option:selected').val(),
fenceStyle = $(":input[name='fenceStyle_" + fenceNumber + "'" + ']').find('option:selected').val(),
picketSize = $(":input[name='picketSize_" + fenceNumber + "'" + ']').find('option:selected').val(),
picketQuantity = $(":input[name='picketQuantity_" + fenceNumber + "'" + ']'),
total = '';
if (!isNaN(Number(fenceHeight))) {
if(fenceHeight == '6') {
if (fenceStyle == 'sbs') {
if (picketSize == '1x3.5x6' || picketSize == "1x4x6" || picketSize == "1x5x6") {
total = Math.ceil((Math.ceil((footage * 12) / 3.5))*1.05);
} else if (picketSize == '1x5.5x6' || picketSize == "1x6x6") {
total = Math.ceil((Math.ceil((footage * 12) / 5.5)) * 1.05);
} else {
total = "Select Picket Size";
}
picketQuantity.val(total);
} else if (fenceStyle == 'bnb') {
if (picketSize == '1x3.5x6' || picketSize == "1x4x6" || picketSize == "1x5x6") {
total = ((Math.ceil((footage * 12) / 8.5) * 3) * 1.05);
} else if (picketSize == '1x5.5x6' || picketSize == "1x6x6") {
total = ((Math.ceil((footage * 12) / 10.5) * 3) * 1.05);
} else {
total = "Select Picket Size";
}
picketQuantity.val(total);
} else {
picketQuantity.val("Select Fence Style");
}
} else if (fenceHeight == '8') {
total = (Math.ceil(footage / 8))*3;
picketQuantity.val(total);
}
} else {
picketQuantity.val("Select Fence Height");
}
});