带有按钮单击和动态输入定位的表单中的空数组
Empty array in form with button click and dynamic input positioning
我有一个用于计算数字数组的总和和平均值的表格。我正在使用一个按钮来触发表单出现,然后用户可以添加额外的输入字段来输入他们想要的任意数量的值。当他们单击 'Calc' 按钮时,他们会收到总和和平均值的提醒。这么多工作正常。问题是当我再次单击触发器关闭然后重新打开表单时,出现与用户选择的输入字段数量相同的输入字段,尽管能够清除它们的值,但我无法清空关联的数组.因此,当用户第二次输入值并尝试执行计算时,先前的值将添加到这些新值中。
最重要的是,我希望动态添加的输入一个一个地出现在另一个之上,对于“.remove-field”div(或至少它包含的图标)出现在每个输入字段的右侧。我已经尝试了各种显示值、定位等,但似乎没有什么能产生一致的外观。
这是我的 HTML 标记:
<button class="form-launch" data-icon="">AVG</button>
<div class="form-space">
<form role="form" action="/wohoo" method="POST" class="form-add-remove">
<label class="label">Average Calculation</label>
<div id="horizontal_bar"></div>
<div class="multi-field-wrapper">
<div class="add-field"><i class="fa fa-plus-circle"></i></div>
<div class="multi-fields">
<div class="multi-field">
<input type="text" name="stuff[]" class="input-field"/>
<div class="remove-field"><i class="fa fa-minus-circle"></i></div>
</div>
</div>
</div>
<button type="button" class="check">Calc</button>
</form>
</div>
我的CSS:
.form-launch {
position: absolute;
top: 20px;
left: 20px;
}
.form-space {
opacity: 0;
}
.form-add-remove {
font-family: "DJB Chalk It Up";
color: #FFF;
font-size: 30px;
width: 600px;
height: 300px;
padding: 20px;
border: 2px solid #FFF;
border-radius: 25px;
box-shadow: 0px 0px 10px 5px #000;
background: transparent url("http://mrlambertsmathpage.weebly.com/files/theme/blackboard.jpeg") repeat-y scroll left center;
text-align: center;
vertical-align: middle;
display: inline-flex;
-moz-box-pack: center;
justify-content: center;
align-items: center;
-moz-box-orient: vertical;
opacity: 1;
position: absolute;
top: 50%;
left: 50%;
margin-left: -300px;
margin-top: -125px;
display: inline-block;
}
.label {
position: absolute;
top: 20px;
left: 20px;
}
#horizontal_bar {
position: absolute;
top: 60px;
left: 0px;
width: 95%;
height: 4px;
border-radius: 2px;
background: #00A2E8 none repeat scroll 0% 0%;
margin: 2.5%;
box-shadow: 0px 0px 6px 3px #000, 0px 0px 1px #000 inset;
}
.multi-field-wrapper {
height: 130px;
width: 90%;
padding: 20px;
margin-left: 0px;
margin-top: 80px;
border: 2px dashed rgba(255, 255, 255, 0.1);
border-radius: 10px;
transition: all 1.5s ease-in-out 0.5S;
overflow-y: scroll;
}
.multi-field-wrapper:hover {
border: 2px solid rgba(255, 255, 255, 0.1);
transition: all 1.5s ease-in-out 0s;
}
.multi-field {
display: inline-block;
}
.add-field {
position: absolute;
right: 20px;
bottom: 20px;
}
i {
color: #00a2e8;
}
.calc {
position: absolute;
left: 20px;
bottom: 20px;
}
input {
font-family: "Borders Divide, But Hearts Shall Conquer";
border-radius: 5px;
border: 2px inset rgba(0, 0, 0, 0.4);
width: 100px;
text-align: right;
padding-right: 10px;
}
还有我的jQuery:
var launchCount = 0;
var arr = [],
sum = 0;
$('.form-launch').click(function() {
launchCount++;
if ((launchCount % 2) == 1) {
$('.form-space').css('opacity', '1');
// Initialize Average Form
$('.multi-field-wrapper').each(function() {
var $wrapper = $('.multi-fields', this);
$(".add-field", $(this)).click(function(e) {
$('.multi-field:first-child', $wrapper).clone(true).appendTo($wrapper).find('input').val('').focus();
});
$('.multi-field .remove-field', $wrapper).click(function() {
if ($('.multi-field', $wrapper).length > 1)
$(this).parent('.multi-field').remove();
});
});
$(".calc").click(function() {
$("input[type=text]").each(function() {
arr.push($(this).val());
sum += parseInt($(this).val());
});
var n = arr.length;
var AVG = (sum / n);
alert(sum + "," + AVG);
});
// End Average Form
} else if ((launchCount % 2) == 0) {
$('.form-space').css('opacity', '0');
$('.form-add-remove').find("input[type=text]").val('');
if ($('.multi-field', $wrapper).length > 1) {
$(this).parent('.multi-field').remove(); // does not seem to work!
}
arr = []; // also does not seem to work
}
});
我在 jQuery 的底部评论了几行来说明我的尝试。我还查看了将数组长度设置为 0,但我也无法让它工作。
显然,这是一项正在进行的工作。我的 jsfiddle 在这里:http://jsfiddle.net/e3b9bopz/77/
你能试试这个吗?
$(".calc").click(function() {
$("input[type=text]").each(function() {
arr.push($(this).val());
sum += parseInt($(this).val());
});
var n = arr.length;
var AVG = (sum / n);
alert(sum + "," + AVG);
arr = []; # How about putting your reset here?
sum = 0; # reinitialized the sum
});
我认为你需要在计算后重新设置arr
。
不完全是您需要的,但是将 $(".check").click
移出 $('.form-launch').click
,并将整个内容包装在 jquery 中。
$(function() {
$(".check").click(function() {
$("input[type=text]").each(function() {
arr.push($(this).val());
sum += parseInt($(this).val());
});
var n = arr.length;
var AVG = (sum / n);
alert(sum + "," + AVG);
arr = [];
});
})
我有一个用于计算数字数组的总和和平均值的表格。我正在使用一个按钮来触发表单出现,然后用户可以添加额外的输入字段来输入他们想要的任意数量的值。当他们单击 'Calc' 按钮时,他们会收到总和和平均值的提醒。这么多工作正常。问题是当我再次单击触发器关闭然后重新打开表单时,出现与用户选择的输入字段数量相同的输入字段,尽管能够清除它们的值,但我无法清空关联的数组.因此,当用户第二次输入值并尝试执行计算时,先前的值将添加到这些新值中。
最重要的是,我希望动态添加的输入一个一个地出现在另一个之上,对于“.remove-field”div(或至少它包含的图标)出现在每个输入字段的右侧。我已经尝试了各种显示值、定位等,但似乎没有什么能产生一致的外观。
这是我的 HTML 标记:
<button class="form-launch" data-icon="">AVG</button>
<div class="form-space">
<form role="form" action="/wohoo" method="POST" class="form-add-remove">
<label class="label">Average Calculation</label>
<div id="horizontal_bar"></div>
<div class="multi-field-wrapper">
<div class="add-field"><i class="fa fa-plus-circle"></i></div>
<div class="multi-fields">
<div class="multi-field">
<input type="text" name="stuff[]" class="input-field"/>
<div class="remove-field"><i class="fa fa-minus-circle"></i></div>
</div>
</div>
</div>
<button type="button" class="check">Calc</button>
</form>
</div>
我的CSS:
.form-launch {
position: absolute;
top: 20px;
left: 20px;
}
.form-space {
opacity: 0;
}
.form-add-remove {
font-family: "DJB Chalk It Up";
color: #FFF;
font-size: 30px;
width: 600px;
height: 300px;
padding: 20px;
border: 2px solid #FFF;
border-radius: 25px;
box-shadow: 0px 0px 10px 5px #000;
background: transparent url("http://mrlambertsmathpage.weebly.com/files/theme/blackboard.jpeg") repeat-y scroll left center;
text-align: center;
vertical-align: middle;
display: inline-flex;
-moz-box-pack: center;
justify-content: center;
align-items: center;
-moz-box-orient: vertical;
opacity: 1;
position: absolute;
top: 50%;
left: 50%;
margin-left: -300px;
margin-top: -125px;
display: inline-block;
}
.label {
position: absolute;
top: 20px;
left: 20px;
}
#horizontal_bar {
position: absolute;
top: 60px;
left: 0px;
width: 95%;
height: 4px;
border-radius: 2px;
background: #00A2E8 none repeat scroll 0% 0%;
margin: 2.5%;
box-shadow: 0px 0px 6px 3px #000, 0px 0px 1px #000 inset;
}
.multi-field-wrapper {
height: 130px;
width: 90%;
padding: 20px;
margin-left: 0px;
margin-top: 80px;
border: 2px dashed rgba(255, 255, 255, 0.1);
border-radius: 10px;
transition: all 1.5s ease-in-out 0.5S;
overflow-y: scroll;
}
.multi-field-wrapper:hover {
border: 2px solid rgba(255, 255, 255, 0.1);
transition: all 1.5s ease-in-out 0s;
}
.multi-field {
display: inline-block;
}
.add-field {
position: absolute;
right: 20px;
bottom: 20px;
}
i {
color: #00a2e8;
}
.calc {
position: absolute;
left: 20px;
bottom: 20px;
}
input {
font-family: "Borders Divide, But Hearts Shall Conquer";
border-radius: 5px;
border: 2px inset rgba(0, 0, 0, 0.4);
width: 100px;
text-align: right;
padding-right: 10px;
}
还有我的jQuery:
var launchCount = 0;
var arr = [],
sum = 0;
$('.form-launch').click(function() {
launchCount++;
if ((launchCount % 2) == 1) {
$('.form-space').css('opacity', '1');
// Initialize Average Form
$('.multi-field-wrapper').each(function() {
var $wrapper = $('.multi-fields', this);
$(".add-field", $(this)).click(function(e) {
$('.multi-field:first-child', $wrapper).clone(true).appendTo($wrapper).find('input').val('').focus();
});
$('.multi-field .remove-field', $wrapper).click(function() {
if ($('.multi-field', $wrapper).length > 1)
$(this).parent('.multi-field').remove();
});
});
$(".calc").click(function() {
$("input[type=text]").each(function() {
arr.push($(this).val());
sum += parseInt($(this).val());
});
var n = arr.length;
var AVG = (sum / n);
alert(sum + "," + AVG);
});
// End Average Form
} else if ((launchCount % 2) == 0) {
$('.form-space').css('opacity', '0');
$('.form-add-remove').find("input[type=text]").val('');
if ($('.multi-field', $wrapper).length > 1) {
$(this).parent('.multi-field').remove(); // does not seem to work!
}
arr = []; // also does not seem to work
}
});
我在 jQuery 的底部评论了几行来说明我的尝试。我还查看了将数组长度设置为 0,但我也无法让它工作。
显然,这是一项正在进行的工作。我的 jsfiddle 在这里:http://jsfiddle.net/e3b9bopz/77/
你能试试这个吗?
$(".calc").click(function() {
$("input[type=text]").each(function() {
arr.push($(this).val());
sum += parseInt($(this).val());
});
var n = arr.length;
var AVG = (sum / n);
alert(sum + "," + AVG);
arr = []; # How about putting your reset here?
sum = 0; # reinitialized the sum
});
我认为你需要在计算后重新设置arr
。
不完全是您需要的,但是将 $(".check").click
移出 $('.form-launch').click
,并将整个内容包装在 jquery 中。
$(function() {
$(".check").click(function() {
$("input[type=text]").each(function() {
arr.push($(this).val());
sum += parseInt($(this).val());
});
var n = arr.length;
var AVG = (sum / n);
alert(sum + "," + AVG);
arr = [];
});
})