计算表格中的运费 [英] Calculating shipping cost in a form
问题描述
我在 http：// www。 develop.check.com.au/hh/order.html 其中
一个扩展小计，然后计算一个总计
a数量由用户输入。我希望能够将
运费加到该总额中。
运费在邮资和邮件中处理费用链接，每箱价格为
。如果有人选择美国，加拿大，中东，从
下拉框中它应该重新计算运费，否则它将在默认情况下计算
。澳大利亚。
如果我在这里发布计算函数，它们将会换行，但它们位于
http://www.develop.check.com.au/hh/calculate2.js
很多TIA的帮助。
Howard Martin写道：我的表格在 http://www.develop.check.com.au/hh/order.html 其中<一旦用户输入数量，就会计算扩展的子总数，然后计算总计。我希望能够将
运费加到该总额上。
运费在邮资和邮件中。处理费用链接，是每箱的成本。如果有人选择美国，加拿大，中东，从
下拉框中它应该重新计算运费，否则它应该在默认情况下计算 - 澳大利亚。 caculate2.js计算
：
运费=新数组（''5.00''，''7.50''，''8.50 ''，'''9.50''）;
函数总数（what，number）{
var grandTotal = 0;
var quantTotal = 0;
for（var i = 0; i< number; i ++）{
if（what.elements [''price''+ i] .value ==''''）
what.elements [''price''+ i] .value =''0.00''; //修复Opera。
what.elements [''subtotal''+ i] .value =（what.elements [''quantity''+ i] .value
- 0）*（what.elements [''price''+ i] .value - 0）;
if（what.elements [''quantity''+ i ] .value ==" 0"）
what.elements [''subtotal''+ i] .value =" 0.00" ;;
subtotal = what.elements [''subtotal''+ i] .value
grandTotal + =（what.elements [''price''+ i] .value - 0）*
（what.elements [''quantity''+ i] .value - 0）;
quantTotal + = what.elements [''quantity''+ i ] .value * 1;
}
shippingCost = quantTotal *
运费[what.elements [''location'' ] .selectedIndex];
shippingCost = quantTotal> 200？ shippingCost * 0.8：
quantTotal> 100？ shippingCost * 0.9：
quantTotal> 50？ shippingCost * 0.95：
shippingCost * 1;
grandTotal + = shippingCost;
小计=舍入（Math.round（小计） * Math.pow（10,2））/ Math.pow（10,2））;
what.grandTotal.value =
roundoff（Math.round（grandTotal） * Math.pow（10,2））/ Math.pow（10,2））;
}
如果我在这里发布计算函数将包裹，但他们在
http： //www.develop.check.com.au/hh/calculate2.js
计算：
shipping = new Array（''5.00''，''7.50''，''8.50''，''9.50''）;
function total2（what）{
var quantTotal = 0;
var j = 0;
for（var i = 0; i< what.length; i ++）
if（what.elements [i] .name.substring（0,4）==''quant''）
j ++;
for（var i = 0; i< j; i ++）
quantTotal + = what.element s [''quantity''+ i] .value * 1;
shippingCost = quantTotal *
运费[what.elements [''location'']。selectedIndex] ;
shippingCost = quantTotal> 200？ shippingCost * 0.8：
quantTotal> 100？ shippingCost * 0.9：
quantTotal> 50？ shippingCost * 0.95：
shippingCost * 1;
what.grandTotal.value + = shippingCost;
what.grandTotal.value = roundoff（Math .round（what.gra ndTotal.value * Math.pow（10,2））/ Math.pow（10,2））;
}
-
Stephane Moriaux et son [moins] vieux Mac
JRS：文章< 42 ************ *********@news.wanadoo.fr> ;,日期为星期二，
2005年7月19日03:59:12，见于新闻：comp.lang.javascript，ASM< stephanemo
ri***********@wanadoo.fr >发表：Howard Martin写道：我的表格在 http://www.develop.check.com.au/hh/order.html 其中
计算caculate2.js ：
grandTotal + =（what.elements [''price''+ i] .value - 0）*
（what.elements [''quantity''+ i] .value - 0）;
在
乘法之前，无需将String显式转换为数字。
quantTotal + = what。元素[ '' 量 '' + I]。价值* 1;
无需乘以1即可将String转换为Number;一元一天+
更优雅。
见常见问题。
小计=舍入（Math.round（小计*数学） .pow（10,2））/ Math.pow（10,2））;
what.grandTotal.value =
舍入（Math.round（grandTotal * Math.pow（10,2）） /Math.pow(10,2））;
Math.pow（10,2）*总是* 100;没有必要计算每个
时间，甚至一次。并且没有定义舍入。
-
？约翰斯托克顿，英国萨里。 ?@merlyn.demon.co.uk Turnpike v4.00 IE 4？
< URL：http：//www.jibbering.com/faq/> JL / RC：新闻常见问题：comp.lang.javascript
< URL：http：//www.merlyn.demon.co.uk/js-index.htm> jscr数学，日期，来源。
< URL：http：//www.merlyn.demon.co.uk/> TP / BP / Delphi / jscr /& c，FAQ项目，链接。
John Stockton博士写道：JRS：在文章< ; 42 ********************* @ news.wanadoo.fr>，日期为星期二，
2005年7月19日03:59:12，在新闻中看到：comp.lang.javascript，ASM< stephanemo
ri ********* **@wanadoo.fr >发表：
grandTotal + =（what.elements [''price''+ i] .value - 0）*
（what.elements [''quantity'' + i] .value - 0）;
在
乘法之前不需要显式地将String转换为数字。
谁可以做更多可以做得更少:-)
quantTotal + = what.elements [''quantity''+ i] .value * 1;
无需乘以1即可将String转换为Number;一元吧+
更优雅。
不明白什么是一元+？
foo = foo * 1
foo = foo + 0
或
foo = Number（foo）;
看到任何比其他更好（或优雅）
见常见问题。
如果我找回它
< blockquote class =post_quotes>subtotal = roundoff（Math.round（subtotal * Math.pow（10,2））/ Math.pow（10,2））;
什么.grandTotal.value =
舍入（Math.round（grandTotal * Math.pow（10,2））/ Math.pow（10,2））;
Math .pow（10,2）总是* 100;没有必要每隔一次计算一次，甚至一次。并且没有定义舍入。
我确实认为这不是我的代码被剥夺了...
并认为这是一个黑客
如果是着名的JS轮数= 9.000000000002
-
Stephane Moriaux et son [moins] vieux Mac
I have a form at http://www.develop.check.com.au/hh/order.html where
an extended sub-total and then a grand total is calculated as soon as
a quantity is input by a user. I would like to be able to add the
shipping cost to that grand total.
Shipping costs are in the "Postage & handling charges" link and are a
cost per box. If somebody selects "USA, Canada, Middle East" from the
drop down box it should recalculate the shipping cost, otherwise it
should calculate on the default - Australia.
If I post the calculation functions here they''ll wrap but they are at
http://www.develop.check.com.au/hh/calculate2.js
Many TIA for your help.
Howard Martin wrote:I have a form at http://www.develop.check.com.au/hh/order.html where
an extended sub-total and then a grand total is calculated as soon as
a quantity is input by a user. I would like to be able to add the
shipping cost to that grand total.
Shipping costs are in the "Postage & handling charges" link and are a
cost per box. If somebody selects "USA, Canada, Middle East" from the
drop down box it should recalculate the shipping cost, otherwise it
should calculate on the default - Australia.
calculation in caculate2.js :
shipping = new Array(''5.00'',''7.50'',''8.50'',''9.50'');
function total(what,number) {
var grandTotal = 0;
var quantTotal = 0;
for (var i=0;i<number;i++) {
if (what.elements[''price'' + i].value == '''')
what.elements[''price'' + i].value = ''0.00''; // fix for Opera.
what.elements[''subtotal'' + i].value=(what.elements[''quantity'' + i].value
- 0) * (what.elements[''price'' + i].value - 0);
if (what.elements[''quantity'' + i].value == "0")
what.elements[''subtotal'' + i].value = "0.00";
subtotal=what.elements[''subtotal'' + i].value
grandTotal += (what.elements[''price'' + i].value - 0) *
(what.elements[''quantity'' + i].value - 0);
quantTotal += what.elements[''quantity''+i].value*1;
}
shippingCost = quantTotal *
shipping[what.elements[''location''].selectedIndex];
shippingCost = quantTotal>200? shippingCost*0.8 :
quantTotal>100? shippingCost*0.9 :
quantTotal>50? shippingCost*0.95 :
shippingCost*1;
grandTotal += shippingCost;
subtotal = roundoff(Math.round(subtotal*Math.pow(10,2))/Math.pow(10,2));
what.grandTotal.value =
roundoff(Math.round(grandTotal*Math.pow(10,2))/Math.pow(10,2));
}
If I post the calculation functions here they''ll wrap but they are at
http://www.develop.check.com.au/hh/calculate2.js
calculation here :
shipping = new Array(''5.00'',''7.50'',''8.50'',''9.50'');
function total2(what) {
var quantTotal = 0;
var j=0;
for(var i=0;i<what.length;i++)
if(what.elements[i].name.substring(0,4)==''quant'')
j++;
for (var i=0;i<j;i++)
quantTotal += what.elements[''quantity''+i].value*1;
shippingCost = quantTotal *
shipping[what.elements[''location''].selectedIndex];
shippingCost = quantTotal>200? shippingCost*0.8 :
quantTotal>100? shippingCost*0.9 :
quantTotal>50? shippingCost*0.95 :
shippingCost*1;
what.grandTotal.value += shippingCost;
what.grandTotal.value=roundoff(Math.round(what.gra ndTotal.value*Math.pow(10,2))/Math.pow(10,2));
}
--
Stephane Moriaux et son [moins] vieux Mac
JRS: In article <42*********************@news.wanadoo.fr>, dated Tue,
19 Jul 2005 03:59:12, seen in news:comp.lang.javascript, ASM <stephanemo
ri***********@wanadoo.fr> posted :Howard Martin wrote:I have a form at http://www.develop.check.com.au/hh/order.html wherecalculation in caculate2.js : grandTotal += (what.elements[''price'' + i].value - 0) *
(what.elements[''quantity'' + i].value - 0);
There is no need to explicitly convert String to Number before
multiplication.
quantTotal += what.elements[''quantity''+i].value*1;
There is no need to multiply by 1 to convert String to Number; a unary +
does it more elegantly.
See FAQ.
subtotal = roundoff(Math.round(subtotal*Math.pow(10,2))/Math.pow(10,2));
what.grandTotal.value =
roundoff(Math.round(grandTotal*Math.pow(10,2))/Math.pow(10,2));
Math.pow(10, 2) is *always* 100; there is no need to calculate it every
time, or even once. And roundoff is not defined.
--
? John Stockton, Surrey, UK. ?@merlyn.demon.co.uk Turnpike v4.00 IE 4 ?
<URL:http://www.jibbering.com/faq/> JL/RC: FAQ of news:comp.lang.javascript
<URL:http://www.merlyn.demon.co.uk/js-index.htm> jscr maths, dates, sources.
<URL:http://www.merlyn.demon.co.uk/> TP/BP/Delphi/jscr/&c, FAQ items, links.
Dr John Stockton wrote:JRS: In article <42*********************@news.wanadoo.fr>, dated Tue,
19 Jul 2005 03:59:12, seen in news:comp.lang.javascript, ASM <stephanemo
ri***********@wanadoo.fr> posted :grandTotal += (what.elements[''price'' + i].value - 0) *
(what.elements[''quantity'' + i].value - 0);
There is no need to explicitly convert String to Number before
multiplication.
who can do more can do less :-)
quantTotal += what.elements[''quantity''+i].value*1;
There is no need to multiply by 1 to convert String to Number; a unary +
does it more elegantly.
not understood what is a unary + ?
foo = foo*1
foo = foo+0
or
foo = Number(foo);
see any really better (or elegant) than other one
See FAQ.
if I find it back
subtotal = roundoff(Math.round(subtotal*Math.pow(10,2))/Math.pow(10,2));
what.grandTotal.value =
roundoff(Math.round(grandTotal*Math.pow(10,2))/Math.pow(10,2));
Math.pow(10, 2) is *always* 100; there is no need to calculate it every
time, or even once. And roundoff is not defined.
I did think this not mine code was debuged ...
and thought it was a hack
in case of famous JS round number = 9.000000000002
--
Stephane Moriaux et son [moins] vieux Mac
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