JavaScript statement

function myFunction()
{
Document.GetElementByid ("demo"). Innerhtml = "Hello Dolly";
Document.GetElementByid ("MyDiv"). InnerHtml = "How are you doing recently?"
}

Try it out . . .

You'll learn more about functions in a later section.

JavaScript statement identifier

JavaScript statements typically start with a statement identifier and execute the statement.

Statement identifiers are reserved keywords that cannot be used as variable names.

The following table lists JavaScript statement identifiers (keywords):

Statement	Describe
break	Used to jump out of a loop.
Catch	Statement block, which executes catch statement blocks when an error is made in the execution of the try statement block.
continue	Skip an iteration in the loop.
do ... while	Executes a statement block that continues when the conditional statement is true.
for	When the conditional statement is true, you can execute the block of code a specified number of times.
for ... in	A property used to traverse an array or object (looping through the properties of an array or object).
function	Define a function
if ... else	Used to perform different actions based on different conditions.
return	Exit the function
switch	Used to perform different actions based on different conditions.
throw	Throw (build) an error.
try	Implement error handling, which is used with catch.
Var	Declare a variable.
while	When the conditional statement is true, the statement block is executed.

Space

JavaScript ignores extra spaces. Y ou can add spaces to your script to improve its readability. The following two lines of code are equivalent:

var person="Hege"; var person = "Hege";

Fold the line of code

You can use backslashes in text strings to line lines of code. The following example shows correctly:

Document.write ("Hello \ w3cschool!");

However, you can't fold a line like this:

Document.write \ ("Hello W3cschool!");