TEST DOT JS
Text . Html
<!DOCTYPE html>
<html>
<head>
<title>Site for Test</title>
<script type="text/javascript">
//it is valid only for 10 days- this is how you comment in js...
</script>
</head>
<body>
<p id="th"></p>
</body>
<script src="test.js"></script>
</html>
Test . JS
This is a multiline comment
Author : Harry
..................................................................
document.getElementById('th').innerHTML = "This is a para";
document.write("This is an external js2");
..................................................................
var a1 = 45;
var a11=5;
var a2 = "This is me";
document.write(a1+a11,"<br>");
document.write(a1, a11,"<br>");
console.log("This is console");
// console.log is used for debugging purposes
..................................................................
var age = prompt("Tell me your age");
alert("Your age is ", age);
// But the age var. value is not showing...
..................................................................
document.write("5 + 9 = ", 5+9,"<br>");
document.write("5 - 9 = ", 5-9,"<br>");
document.write("5 * 9 = ", 5*9,"<br>");
document.write("5 / 9 = ", 5/9,"<br>");
document.write("5 % 9 = ", 5%9,"<br>");
..................................................................
var foodcost = prompt("What is the total amount");
var no = prompt("No of people");
document.write("The total cost of food was ", foodcost,"<br>");
document.write("Each one of you has to pay ", (foodcost/no).toFixed(2),"<br>");
//never use space before "<br>"
// .toFixed(2) is for showing 2 digit float value...
..................................................................
document.write("2^9 = ", Math.pow(2,9),"<br>" );
document.write("abs(-34) = ", Math.abs(-34),"<br>");
document.write("sqrt(36) = ", Math.sqrt(36),"<br>");
//always start live server when in .html page
// abs = absolute
..................................................................
//String Functions
var str1 = "CodeWithHarry";
document.write(str1.length,"<br>" );
document.write(str1.indexOf("With"),"<br>" );
document.write(str1.toLowerCase(),"<br>" );
*/
..................................................................
// Relational Operators : ==, !=, <, >, >=, <=
// Logical Operators : &&, ||
var age = prompt("What is your age");
if (age<20 && age>=10)
{
document.write("You go to the school");
}
else if(age<10 && age>3)
{
document.write("You also go to the school");
}
else
{
document.write("Do whatever you want");
}
..................................................................
var age = prompt("What is your age?");
switch(age)
{
case "22":
document.write("22 years old.. okay");
break;
case "21":
document.write("21 years old.. okay");
break;
case "12":
document.write("12 years old.. okay");
break;
default:
document.write("default years old.. okay");
break;
}
..................................................................
var i =1;
while(i<=100)
{
document.write(i,"<br>");
i++;
}
var i =101;
do
{
document.write(i,"<br>");
i++;
} while(i<=100)
for (var i = 0; i < 2; i++) {
document.write(i,"<br>");
}
..................................................................
var books = ["Harry potter", "ncert", "ctci", 65];
document.write(books[3],"<br>");
function harry(){
document.write("We are calling harry");
console.log("We have executed harry function");
}
harry();
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