我在flex中有一个文本框,我试图分割用户输入的数量。代码类似于:
var splitAmount:Array = toAmountLocal.split("\\.");
尝试使用点(。)的不同选项,但没有任何工作,每次只返回splitAmount.length
。
答案 0 :(得分:1)
如果使用String作为split
方法的参数,则不必转义任何内容;只是做:
toAmountLocal.split(".");
但是如果你想使用正则表达式作为参数,那么你只需要用一个反斜杠来转义点,如下所示:
toAmountLocal.split(/\./);
答案 1 :(得分:0)
下面的代码可以帮助您:我已添加了您在逻辑中缺少的注释。
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"
creationComplete="init()">
<fx:Script>
<![CDATA[
import mx.controls.Alert;
[Bindable]
private var toAmountLocal:String = "123.45.6.78";
private function onClickHandler():void
{
//if user is entering value your local variable should be updated.
toAmountLocal = inputID.text;
var splitAmount:Array = toAmountLocal.split('.');
Alert.show(splitAmount.length.toString())
}
]]>
</fx:Script>
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<s:layout>
<s:VerticalLayout/>
</s:layout>
<s:TextInput id="inputID" text="{toAmountLocal}"/>
<s:Button label="Split" click="onClickHandler()"/>
</s:Application>