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प्रश्न
Explain for loop with example.
दीर्घउत्तर
उत्तर
The for loop is a very rigid structure that loops for a pre-set number of times. In JavaScript for structure is very flexible, which makes this type is very useful.
for (initialization; condition; increment/decrement)
{
Body of the loop;
}The for structure within parenthesis there are three parts each separated by a semicolon. They are,
- The first part of the loop initialize a variable which is also called a control variable. In most case, the control variable is declared as well as initialized.
- The second part is the conditional statement that determines how many times the loop will be iterated.
- The third and final part determines how the value of control variable is changed (Incremented/Decremented).
Example:
HTML CODE
<Html>
<Head>
<Title> Program - To test for statement in JavaScript </Title>
</Head>
<Body>
<script language="javascript" type="text/javascript">
var no1 = prompt("Please enter Table You want :", "0");
document.write("<h2> Multiplication for your need </h2>");
for( var no2=0;no2<=10;no2++)
{
document.write(no1+" x "+no2+" = "+no1*no2+"<br>");
}
</script>
</Body>
</Html>OUTPUT:
shaalaa.com
Looping / Repetitive
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