JavaScripts -
Divers
Calculatrice
:
Insérer
dans la partie <BODY> du document HTML :
<form
name="Keypad" action>
<div align="center"><center><table>
<b>
<tr>
<td><div align="center"><center><table
border="2" width="50" height="60"
cellpadding="1"
cellspacing="5">
<tr>
<td colspan="3" align="middle"><input
name="ReadOut" size="24"
value="0" width="100%">
</td>
<td </td> </td>
<td><input name="btnClear"
type="Button" value=" C "
onclick="Clear()"> </td>
<td><input name="btnClearEntry"
type="Button" value=" CE "
onclick="ClearEntry()"> </td>
</tr>
<tr>
<td><input name="btnSeven"
type="Button" value=" 7 "
onclick="NumPressed(7)"> </td>
<td><input name="btnEight"
type="Button" value=" 8 "
onclick="NumPressed(8)"> </td>
<td><input name="btnNine" type="Button"
value=" 9 " onclick="NumPressed(9)">
</td>
<td> </td>
<td><input name="btnNeg" type="Button"
value=" +/- " onclick="Neg()">
</td>
<td><input name="btnPercent"
type="Button" value=" % "
onclick="Percent()"> </td>
</tr>
<tr>
<td><input name="btnFour" type="Button"
value=" 4 " onclick="NumPressed(4)">
</td>
<td><input name="btnFive" type="Button"
value=" 5 " onclick="NumPressed(5)">
</td>
<td><input name="btnSix" type="Button"
value=" 6 " onclick="NumPressed(6)">
</td>
<td> </td>
<td align="middle"><input name="btnPlus"
type="Button" value=" + "
onclick="Operation('+')"> </td>
<td align="middle"><input name="btnMinus"
type="Button" value=" - "
onclick="Operation('-')"> </td>
</tr>
<tr>
<td><input name="btnOne" type="Button"
value=" 1 " onclick="NumPressed(1)">
</td>
<td><input name="btnTwo" type="Button"
value=" 2 " onclick="NumPressed(2)">
</td>
<td><input name="btnThree"
type="Button" value=" 3 "
onclick="NumPressed(3)"> </td>
<td> </td>
<td align="middle"><input name="btnMultiply"
type="Button" value=" * "
onclick="Operation('*')"> </td>
<td align="middle"><input name="btnDivide"
type="Button" value=" / "
onclick="Operation('/')"> </td>
</tr>
<tr>
<td><input name="btnZero" type="Button"
value=" 0 " onclick="NumPressed(0)">
</td>
<td><input name="btnDecimal"
type="Button" value=" . "
onclick="Decimal()"> </td>
<td colspan="3"> </td>
<td><input name="btnEquals"
type="Button" value=" = "
onclick="Operation('=')"> </td>
</tr>
</table>
</center></div></td>
</tr>
</table>
</center></div></b>
</form>
<font face="Verdana, Arial, Helvetica"
size="2"><script language="JavaScript">
<!-- Begin
var FKeyPad = document.Keypad;
var Accum = 0;
var FlagNewNum = false;
var PendingOp = "";
function NumPressed (Num) {
if (FlagNewNum) {
FKeyPad.ReadOut.value = Num;
FlagNewNum = false;
}
else {
if (FKeyPad.ReadOut.value == "0")
FKeyPad.ReadOut.value = Num;
else
FKeyPad.ReadOut.value += Num;
}
}
function Operation (Op) {
var Readout = FKeyPad.ReadOut.value;
if (FlagNewNum && PendingOp !=
"=");
else
{
FlagNewNum = true;
if ( '+' == PendingOp )
Accum += parseFloat(Readout);
else if ( '-' == PendingOp )
Accum -= parseFloat(Readout);
else if ( '/' == PendingOp )
Accum /= parseFloat(Readout);
else if ( '*' == PendingOp )
Accum *= parseFloat(Readout);
else
Accum = parseFloat(Readout);
FKeyPad.ReadOut.value = Accum;
PendingOp = Op;
}
}
function Decimal () {
var curReadOut = FKeyPad.ReadOut.value;
if (FlagNewNum) {
curReadOut = "0.";
FlagNewNum = false;
}
else
{
if (curReadOut.indexOf(".") == -1)
curReadOut += ".";
}
FKeyPad.ReadOut.value = curReadOut;
}
function ClearEntry () {
FKeyPad.ReadOut.value = "0";
FlagNewNum = true;
}
function Clear () {
Accum = 0;
PendingOp = "";
ClearEntry();
}
function Neg () {
FKeyPad.ReadOut.value = parseFloat(FKeyPad.ReadOut.value)
* -1;
}
function Percent () {
FKeyPad.ReadOut.value = (parseFloat(FKeyPad.ReadOut.value)
/ 100) * parseFloat(Accum);
}
// End -->
</script>
Exemple
:
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