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convert java array to javascript array

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Feb 21.2005

anyone know how to convert a java array to a javascript array? I have the java array created and can read it via javascript but it comes out in the wrong format, one long string, I need it as a select box. Thanks!

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JavaScript

6 Comments(s) ↴

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@A1ien51Feb 21.2005 — You try this
<i>
</i>var yourArr = new Array(&lt;% YOUR JSP STATEMENT %&gt;);


or

<i>
</i>var yourArr = yourArray.split(",");


Eric
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@BigMagooauthorFeb 21.2005 — Hi Eric,

I tried your suggestion and am now getting an error. Below is what I have written, did I misunderstand you?

//arrays on jsp

<%

Vector stateList = new Vector();

admin.getState(stateList);

Vector terrList = new Vector();

admin.getCanTerr(terrList);

%>

<script language="javascript">

function setOptions(o)

{

//your snippet with reference to vector

var state = new Array(<%= stateList %> );

var select2 = document.geo.select2;

select2.options.length = 0;

if (o == "United States")

{

//reference to new javascript var

select2.options[select2.options.length] = new Option(state);

}

if (o == "Canada")

{

select2.options[select2.options.length] = new Option('<%=terrList%>');

}

if (o == "3")

{

select2.options[select2.options.length] = new Option('Chicken');

select2.options[select2.options.length] = new Option('Fish');

}

}

</script>
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@BigMagooauthorFeb 21.2005 — I have done some more playing around but still not getting it to output correctly can anyone take a look?

<script language="javascript">

function setOptions(o)

{

var state = new Array(<% Vector stateList = new Vector(); admin.getState(stateList);

String stateString = " ";

for (int i = 0; i < stateList.size(); i++) {

String sString = stateList.get(i).toString();

stateString = stateString + sString.trim() ;

}

%> );

var select2 = document.geo.select2;

select2.options.length = 0;

if (o == "United States")

{

select2.options[select2.options.length] = new Option('state');

}

if (o == "Canada")

{

select2.options[select2.options.length] = new Option('<%=terrList%>');

}

if (o == "3")

{

select2.options[select2.options.length] = new Option('Chicken');

select2.options[select2.options.length] = new Option('Fish');

}

}

</script>
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@A1ien51Feb 22.2005 — most likey your state string does not have quotes around the states.

Do a view source on the page to see the code generated. Looking at your server side code does not help unless you can see what it is outputting exactly.

Eric
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@BigMagooauthorFeb 22.2005 — Yes, the quotes are around the value"AL" as opposed to the text "Alabama".
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@BigMagooauthorFeb 22.2005 — Here is the view source for my page, as you can see everything is there just not the right format.

<script language="javascript">

function setOptions(o)

{

var select2 = document.geo.select2;

select2.options.length = 0;

if (o == "United States")

{

select2.options[select2.options.length] = new Option(' <option value="AL">Alabama<option value="AK">Alaska<option value="AZ">Arizona<option value="AR">Arkansas<option value="CA">California<option value="CO">Colorado<option value="CT">Connecticut<option value="DE">Delaware<option value="FL">Florida<option value="GA">Georgia<option value="HI">Hawaii<option value="ID">Idaho<option value="IL">Illinois<option value="IN">Indiana<option value="IA">Iowa<option value="KS">Kansas<option value="KY">Kentucky<option value="LA">Louisiana<option value="ME">Maine<option value="MD">Maryland<option value="MA">Massachusetts<option value="MI">Michigan<option value="MN">Minnesota<option value="MS">Mississippi<option value="MO">Missouri<option value="MT">Montana<option value="NA">National<option value="NE">Nebraska<option value="NV">Nevada<option value="NH">New Hampshire<option value="NJ">New Jersey<option value="NM">New Mexico<option value="NY">New York<option value="NC">North Carolina<option value="ND">North Dakota<option value="OH">Ohio<option value="OK">Oklahoma<option value="OR">Oregon<option value="PA">Pennsylvania<option value="RI">Rhode Island<option value="SC">South Carolina<option value="SD">South Dakota<option value="TN">Tennessee<option value="TX">Texas<option value="UT">Utah<option value="VT">Vermont<option value="VA">Virginia<option value="WA">Washington<option value="WV">West Virginia<option value="WI">Wisconsin<option value="WY">Wyoming');

}

if (o == "Canada")

{

select2.options[select2.options.length] = new Option(' <option value="AL">Alberta<option value="BC">British Columbia<option value="MN">Manitoba<option value="NW">NW Territory<option value="NA">National<option value="NB">New Brunswick<option value="NF">Newfoundland<option value="NS">Nova Scotia<option value="NU">Nunavut<option value="ON">Ontario<option value="PE">Prince Edward Island<option value="QE">Quebec<option value="SP">Saint Pierre & Miquelon<option value="SA">Saskatchewan<option value="YU">Yukon');

}

if (o == "3")

{

select2.options[select2.options.length] = new Option('Chicken');

select2.options[select2.options.length] = new Option('Fish');

}

}

</script>
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