嘿家伙应该是一个简单的...我有一些 javascript 将我的输入值转换为货币值。问题是如果我尝试输入 .5 它将失败这是我的代码:
function handleCurrency(formName,fieldName)
{
var enteredValue = document.forms[formName].elements[fieldName].value;
if ( enteredValue.isCurrency() )
{
alert("This is currency " + enteredValue )
// Put the nicely formatted back into the text box.
document.forms[formName].elements[fieldName].value = enteredValue.toCurrency();
}
}
jsp:
<td><input type="text" name="replacementCost" onchange="handleCurrency('NsnAdd','replacementCost')" value="<ctl:currencyFormat currency='${form.replacementCost}'/>" onkeypress="javascript:return noenter();" <c:if test="${!lock.locked}">disabled="disabled"</c:if> /></td>
我怎样才能使 .5 也可以被格式化?
自定义 JavaScript:
var patternWithCommas = new RegExp("^\\s*\\$?-?(\\d{1,3}){1}(,\\d{3}){0,}(\\.\\d{1,2})?\\s*$");
var patternWithoutCommas = new RegExp("^\\s*\\$?-?\\d+(\\.\\d{1,2})?\\s*$");
function stringIsCurrency()
{
if (patternWithoutCommas.test(this))
{
return true;
}
else if (patternWithCommas.test(this))
{
return true;
}
return false;
}
function stringToCurrency()
{
if (this == '') return this;
var str = this.replace(/[$,]+/g,'');
sign = (str == (str = Math.abs(str)));
str = Math.floor(str*100+0.50000000001);
cents = str%100;
str = Math.floor(str/100).toString();
if (cents<10) cents = "0" + cents;
for (var i = 0; i < Math.floor((str.length-(1+i))/3); i++)
{
str = str.substring(0,str.length-(4*i+3))+','+
str.substring(str.length-(4*i+3));
}
str = '$' + ((sign)?'':'-') + str + '.' + cents;
return str;
}
String.prototype.isCurrency = stringIsCurrency;
String.prototype.toCurrency = stringToCurrency;
基本上它需要允许 0.5 而不仅仅是 0.5
这需要更新:
var patternWithCommas = new RegExp("^\\s*\\$?-?(\\d{1,3}){1}(,\\d{3}){0,}(\\.\\d{1,2})?\\s*$");