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Write a javascript program to make a simple calculator

Question Posted / s.suresh

Answer Posted / s.suresh

<html>
<form name="calculator">
<table border=4>
<tr>
<td>
<input type="text" name="text" size="18">
<br>
</td>
</tr>
<tr>
<td>
<input type="button" value="1"
onclick="calculator.text.value += '1'">
<input type="button" value="2"
onclick="calculator.text.value += '2'">
<input type="button" value="3"
onclick="calculator.text.value += '3'">
<input type="button" value="+"
onclick="calculator.text.value += ' + '">
<br>
<input type="button" value="4"
onclick="calculator.text.value += '4'">
<input type="button" value="5"
onclick="calculator.text.value += '5'">
<input type="button" value="6"
onclick="calculator.text.value += '6'">
<input type="button" value="-"
onclick="calculator.text.value += ' - '">
<br>
<input type="button" value="7"
onclick="calculator.text.value += '7'">
<input type="button" value="8"
onclick="calculator.text.value += '8'">
<input type="button" value="9"
onclick="calculator.text.value += '9'">
<input type="button" value="*"
onclick="calculator.text.value += ' * '">
<br>
<input type="button" value="c"
onclick="calculator.text.value = ''">
<input type="button" value="0"
onclick="calculator.text.value += '0'">
<input type="button" value="="
onclick="calculator.text.value = eval(calculator.text.value)">
<input type="button" value="/"
onclick="calculator.text.value += ' / '">
<br>
</td>
</tr>
</table>
</form>
</html>

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