-
Assignment Operator (=):
var1 = 3;
assigns the value 3 to the variablevar1
.var2 = 4;
assigns the value 4 to the variablevar2
.var1 = var1 + 7;
adds 7 to the current value ofvar1
and updates the value ofvar1
to the result, which is 10.
-
Inequality Operator (!=):
var1 != 10
checks if the value ofvar1
is not equal to 10. In this case, it evaluates totrue
becausevar1
is indeed not equal to 10.
-
Mathematical Operators (+, -, sqrt, ceil):
var1 + 7
adds 7 to the value ofvar1
, resulting in 10.Math.sqrt(var1)
calculates the square root ofvar1
, which is approximately 3.162.Math.ceil(Math.sqrt(var1))
calculates the ceiling value of the square root ofvar1
. In this case, it rounds up 3.162 to 4.
-
Logical Operator (&&):
- Although the code provided does not include the logical AND operator (
&&
), it's a fundamental operator in JavaScript used for combining conditions in logical expressions.
- Although the code provided does not include the logical AND operator (
The code also includes HTML and JavaScript to display the value of the first paragraph on the web page in the console. It demonstrates the use of the getElementsByTagName
method to access HTML elements and log their content to the console when the page loads.
This code is a simple introduction to some of the core JavaScript operators and their application within a basic web page. It's a starting point for those learning JavaScript and web development.