자바스크립트가변변수.html
eval 함수를 이용한 가변 변수
<script type="text/javascript">
var aux="aux"
s_array=new Array("www.daum.net", "www.naver.com", "www.yahoo.com")
for (j=0; j < s_array.length; j++ ){
eval("var " + aux + j)
eval(aux+j + " = s_array[j]");
document.write(eval(aux + j))
document.write("<br><br>")
}
</script>
-----------------------결 과 -----------------------------------
www.daum.net
www.naver.com
www.yahoo.com
------------------------------------------------------------------
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript">
<!--
function val(){
for(i=0;i<3;i++){
var aux="aux"
alert("document.siteform."+aux+i+".value") // 결과 document.siteform.aux0.value | document.siteform.aux1.value | document.siteform.aux2.value
}
}
function reper(){
for(i=0;i<3;i++){
var aux="aux"
alert(eval("document.siteform."+aux+i+".value")) // 결과 www.daum.net | www.navy.net | www.asdf.net
}
}
//-->
</SCRIPT>
</HEAD>
<BODY>
<FORM name="siteform" METHOD=POST ACTION="">
<input type="hidden" name="aux0" value="www.daum.net">
<input type="hidden" name="aux1" value="www.navy.net">
<input type="hidden" name="aux2" value="www.asdf.net">
<input type="button" name="변수로" value="변수로" onclick="val()">
<input type="button" name="값로" value="값로" onclick="reper()">
</FORM>
</BODY>
</HTML>
----------------------------결과 -------------------------------------------------------------
val() 함수 호출시
document.siteform.aux0.value | document.siteform.aux1.value | document.siteform.aux2.value
reper() 함수 호출시
결과 www.daum.net | www.navy.net | www.asdf.net
---------------------------------------------------------------------------------------------
