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Run the script

To run this JavaScript script:

  • Copy all of the text from the body of Listing 1 into your plain text editor and save the file with an extension of .htm (test.html forexample).
  • Open that file in your browser. (In most cases, you should be able to simply drag the file and drop it onto an open browser page to open it. Ifthat doesn't work, open it from the browser's File menu.)

And the result is...

When you do that, the text shown in Figure 1 should appear in the browser window.

Figure 1 . Output from script in Listing 1.
Insert JavaScript between script tags. Hello from JavaScript

That's all there is to it

All you have to do to write and run a JavaScript script is to:

  • Copy the text (often referred to as code or source code) from Listing 1 into your plain text editor.
  • Replace the code between the two lines containing the word script with the code for your new script, leaving the two lines containing the word script intact.
  • Save the file with an extension of .html. (The file can have any legal file name so long as the extension is .html.)
  • Open the new html file in your browser.

When you do that, the script code will be executed.

Display results in the browser window

If your script code contains statements that begin with document.write , followed by a pair of matching parentheses, (as shown in Listing 1 ), the code in the parentheses will be evaluated and the results of that evaluation will appear in your browser window.

At that point, you will have access to your script code as well as the results of running your script usingyour screen reader and your Braille display.


In programming, we often refer to a group of sequential characters (such as your first name) as a string . In JavaScript format (often called syntax), such groups of characters are surrounded by matching quotationmarks to cause the group to be recognized as a single string.

The following strings appear in the JavaScript code in Listing 1 :

  1. "Insert JavaScript between script tags."
  2. "</br>"
  3. "Hello from JavaScript"

The first two strings appear, separated by a comma, inside the matching parentheses following the first occurrence of document.write . (We often call the items inside the matching parentheses the argument list.)

The last item in the above list appears in the argument list following the second occurrence of document.write in Listing 1 .

Screen output

If you examine Figure 1 , you will see that the first and third items from the above list appear, without their quotation marks, in the browser window. However, the second item does not appear in the browser window.

Purpose of document.write

Although this is a simplification, for purposes of the modules in this collection, it will suffice to say that the purpose of the document.write command is to cause the items in its argument list to be displayed in the browser window. You can place one or more items in the argumentlist. If there is more than one item in the argument list, the items must be separated by a comma as shown in Listing 1 .

Displaying strings

Questions & Answers

the operation * is x * y =x + y/ 1+(x × y) show if the operation is commutative if x × y is not equal to -1
Alfred Reply
An investment account was opened with an initial deposit of $9,600 and earns 7.4% interest, compounded continuously. How much will the account be worth after 15 years?
Kala Reply
lim x to infinity e^1-e^-1/log(1+x)
given eccentricity and a point find the equiation
Moses Reply
12, 17, 22.... 25th term
Alexandra Reply
12, 17, 22.... 25th term
College algebra is really hard?
Shirleen Reply
Absolutely, for me. My problems with math started in First grade...involving a nun Sister Anastasia, bad vision, talking & getting expelled from Catholic school. When it comes to math I just can't focus and all I can hear is our family silverware banging and clanging on the pink Formica table.
I'm 13 and I understand it great
I am 1 year old but I can do it! 1+1=2 proof very hard for me though.
Not really they are just easy concepts which can be understood if you have great basics. I am 14 I understood them easily.
find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
how do they get the third part x = (32)5/4
kinnecy Reply
make 5/4 into a mixed number, make that a decimal, and then multiply 32 by the decimal 5/4 turns out to be
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
okay, so you have 6 raised to the power of 2. what is that part of your answer
I don't understand what the A with approx sign and the boxed x mean
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
I'm not sure why it wrote it the other way
I got X =-6
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
oops. ignore that.
so you not have an equal sign anywhere in the original equation?
is it a question of log
I rally confuse this number And equations too I need exactly help
But this is not salma it's Faiza live in lousvile Ky I garbage this so I am going collage with JCTC that the of the collage thank you my friends
Commplementary angles
Idrissa Reply
im all ears I need to learn
right! what he said ⤴⤴⤴
greetings from Iran
salut. from Algeria
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Jeannette has $5 and $10 bills in her wallet. The number of fives is three more than six times the number of tens. Let t represent the number of tens. Write an expression for the number of fives.
August Reply
What is the expressiin for seven less than four times the number of nickels
Leonardo Reply
How do i figure this problem out.
how do you translate this in Algebraic Expressions
linda Reply
why surface tension is zero at critical temperature
I think if critical temperature denote high temperature then a liquid stats boils that time the water stats to evaporate so some moles of h2o to up and due to high temp the bonding break they have low density so it can be a reason
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
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Source:  OpenStax, Accessible physics concepts for blind students. OpenStax CNX. Oct 02, 2015 Download for free at https://legacy.cnx.org/content/col11294/1.36
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