There are different types of operators in JavaScript that
you can use to perform mathematical operations or design values to variables.
Let’s create a webpage named OperatorPrecedence.html to understand the use of
operators.
####Showing the code of for the OperatorPrecedence.html File.#####
<!DOCTYPE html>
<html>
<head>
<title>Using
operators</title>
</head>
<body>
<h1>Using
operators in the script</h1>
<SCRIPT
type=”text/javascript”>
var
math=95, English=80, Science=90, avgMarks;
avgMarks=
math + English+ Science/3;
document.write(“Average
Marks = ” + avgMarks);
avgMarks=(math
+ English + Science) / 3;
document.write(“<BR/>Average
Marks = “ + avgMarks);
</SCRIPT>
</body>
</html>
The script within the starting and the ending tags of body
has four variables named math,Englsih, Science and avgMarks. These variables
store the marks of all the four subjects as well as the average marks. The avgMarks variable contains the value expression math + science+ English/3. Note that in this
case English/3 is evaluated at first whereas, in the next statement we have
given the variable be (math + English + Science) / 3. In this case fist sum of
marks is divided by 3 which gives the exact average.
#####Showing the output of the OperatorPrecedane.html file####
In the above image you can observe the result of the first
expression is 205 whereas that of the second expression is 88.333333333333.Now
let’s discuss the IF statement.
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