Array.reverse() Method : Array « Language Basics « JavaScript DHTML

Array.reverse() Method

  
<HTML>
<HEAD>
<TITLE>Array.reverse()</TITLE>
<SCRIPT LANGUAGE="JavaScript1.1">
solarSys = new Array(9)
solarSys[0] = "M"
solarSys[1] = "V"
solarSys[2] = "E"
solarSys[3] = "M"
solarSys[4] = "J"
solarSys[5] = "S"
solarSys[6] = "U"
solarSys[7] = "N"
solarSys[8] = "P"


function showAsIs(form) {
    var delimiter = form.delim.value
    form.output.value = unescape(solarSys.join(delimiter))
}


function reverseIt(form) {
    var delimiter = form.delim.value
    solarSys.reverse()  
    form.output.value = unescape(solarSys.join(delimiter))
}
</SCRIPT>
<BODY>
<H2>Reversing array element order</H2>
<FORM>
Enter a string to act as a delimiter between entries:
<INPUT TYPE="text" NAME="delim" VALUE="," SIZE=5><P>
<INPUT TYPE="button" VALUE="Array as-is" onClick="showAsIs(this.form)">
<INPUT TYPE="button" VALUE="Reverse the array" onClick="reverseIt(this.form)">
<INPUT TYPE="reset">
<INPUT TYPE="button" VALUE="Reload" onClick="self.location.reload()">
<TEXTAREA NAME="output" ROWS=4 COLS=60>
</TEXTAREA>
</FORM>
</BODY>
</HTML>

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