FUNCTION: String.removeAt
String.removeAt(string,
index, separator)
The String.removeAt function takes the given string, removes the
element at the given index, removes the given separator, and returns the
modified string.
This function treats a string as an array composed of elements delimited
by a separator that is composed of one or more specified characters (including
white space). The first index position is numbered zero and the last index
position is the total number of the elements minus one. The total number
of elements in the string can be found by using the String.elements
function.
You can insert new elements using the String.insertAt function.
The mandatory string parameter can be any string containing one
or more of any combination of characters and white spaces.
The mandatory index parameter is the position of the element in
the string array. A negative index number will cause the first element
to be removed and will not generate an error. An index number larger than
the actual number of elements will cause the last element to be removed
and will not generate an error.
The mandatory separator parameter can be any character or white
space that you wish to use to divide the string into substrings called
elements. This parameter can also be an empty string.
Code for RemoveAtExample.wml
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.WAPforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1">
<p>
removeAt example
</p>
<do type="accept">
<go href="RemoveAtExample.wmls#findremoveat()"
/>
</do>
</card>
<card id="card2">
<p>
string = $(oldstring)
<br />
index = $(index)
<br />
separator = $(separator)
<br />
new string = $(newstring)
</p>
</card>
</wml>
Code for RemoveAtExample.wmls
extern function findremoveat()
{
var oldstr = Dialogs.prompt("Enter a string", "Hello
wireless world!");
var indx = Dialogs.prompt("Enter an index", "1");
var sep = Dialogs.prompt("Enter a separator", " ");
var newstr = String.removeAt(oldstr,
indx, sep);
WMLBrowser.setVar("oldstring", oldstr);
WMLBrowser.setVar("index", indx);
WMLBrowser.setVar("separator", sep);
WMLBrowser.setVar("newstring", newstr);
WMLBrowser.go("InsertAtExample.wml#card2");
};
Copyright 1999-2001 by Infinite Software Solutions, Inc. All rights reserved.
Trademark Information
|