JavaScript Calculator

This is a simple calculator implementing with JavaScript and Html .This calculator will do division , multiplication  ,addition and subtraction operations  .

Program :

<script language="JavaScript"> 
function calc(ch){ // javasript function with parameter 
form1.t.value= eval(form1.t.value);
form1.t.value= "";
<body onLoad="getTimes()">
<form name="form1" method="post" action="">
<input name="t" type="text" id="t">
<input type="button" name="Button" value="7" onClick="calc('7')"> 
<input type="button" name="Submit2" value="8" onClick="calc('8')">
<input type="button" name="Submit3" value="9" onClick="calc('9')">

<input type="button" name="Submit4" value="+" onClick="calc('+')">
<input type="button" name="Submit5" value="4" onClick="calc('4')">
<input type="button" name="Submit6" value="5" onClick="calc('5')">
<input type="button" name="Submit7" value="6" onClick="calc('6')">
<input type="button" name="Submit8" value="-" onClick="calc('-')">
<input type="button" name="Submit9" value="1" onClick="calc('1')">
<input type="button" name="Submit10" value="2" onClick="calc('2')">
<input type="button" name="Submit11" value="3" onClick="calc('3')">
<input type="button" name="Submit12" value="*" onClick="calc('*')">
<input type="button" name="Submit13" value="0" onClick="calc('0')">
<input type="button" name="Submit14" value="C" onClick="calc('C')">
<input type="button" name="Submit15" value="=" onClick="calc('=')">
<input type="button" name="Submit16" value="/" onClick="calc('/')">


Output :

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