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advantage of the JavaScript language we
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4.65
have the ability now to not only use
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4.08
JavaScript to be able to run code on the
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3.54
client where we weren't able to before
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3.72
were right before we only had Python
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3.78
code that was running on a web server
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4.2
but using JavaScript the really powerful
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4.44
thing is now the ability to manipulate
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4.05
the dog the ability to use JavaScript to
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4.59
take the page and change the contents of
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4.62
the page by updating things by reading
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3.54
what happens to be on the page whether
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3.12
it's inside of a particular element or
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3.3
what a user happened to type in and
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4.2
using that in conjunction with event
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4.68
handlers ways that we can listen for
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3.57
when the user clicks on something or
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2.97
when the user Scrolls through something
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3.54
or when the user types a key to be able
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3.66
to respond and therefore make our
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4.62
webpages all the more interactive next
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4.59
time we'll continue our discussion of
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2.94
JavaScript looking at how we can
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3.24
leverage the features of JavaScript to
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3.57
continue to build even more interesting
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3.57
and engaging user interfaces so we'll
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4.46
see you next time
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2.6
[MUSIC]
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BRIAN YU: All right, welcome, everyone, to Web Programming
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2.42
with Python and JavaScript.
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1.38
My name is Brian Yu.
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1.17
And in this course, we'll dive into the design and implementation
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2.75
of web applications.
25.03
1.48
In lectures, we'll have an opportunity to discuss and explore
26.51
2.94
many of the ideas and tools and languages
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2.25
that are central to modern web programming.
31.7
2.16
And through hands-on projects, you'll have an opportunity to take those ideas
33.86
3.84
and put them into practice, designing multiple web applications of your own,
37.7
3.57
culminating in a final project of your own choosing.
41.27
3.03
Throughout the term, we'll cover a number of topics
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2.13
in this world of web programming, beginning
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2.31
with HTML5 and CSS3, two of the languages
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3.54
that are central to the understanding of web pages.
52.28
2.79
HTML is a language we'll use to describe the structure of a web page.
55.07
3.78
And CSS is the language we'll use to describe
58.85
2.31
the style of a web page, the colors and the fonts
61.16
2.61
and the layouts and the spacing that make the web page look
63.77
2.7
exactly the way we want it to look.
66.47
2.4
After that, we'll turn our attention to Git,
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2.34
a tool not specific to web programming per se,
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2.64
but that we can use in order to version control our programs,
73.85
3.27
to keep track of the different changes we make to our web programs,
77.12
2.91
and to allow us to be able to work on various different parts of the web
80.03
3
application at the same time before merging those pieces back together.
83.03
4.05
After that, we'll take a look at Python, one of the first main languages
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3
that we're going to be exploring in the course, which
90.08
2.2
is the language that we are going to use in order to build our web applications.
92.28
3.5
Specifically, we'll use Python using a framework called Django.
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3.66
Django is a web programming framework written in the Python programming
99.44
3.15
language that we're going to use to make it easy to design and develop our web
102.59
4.2
applications Django in particular makes it easy to design web applications
106.79
4.23
that interact with data.
111.02
1.54
So after that, we'll turn our attention to SQL, a language
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2.84
that we can use to interact with databases, in particular looking
115.4
3.39
at how Django allows us to use models and migrations to interact with data
118.79
4.11
and allow users to interact with data all the more easily.
122.9
3.94
Next, we'll turn our attention to the second of the main programming
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2.84
languages that we'll be exploring in this class, JavaScript,
129.68
3.15
and looking at how we can use JavaScript to run in users' web browsers
132.83
3.48
to make web pages just a little bit more interactive.
136.31
2.94
In particular, we'll use JavaScript in the context of user interfaces,
139.25
3.66
looking at modern user interfaces and exploring
142.91
2.31
how it is that those interfaces work and how
145.22
2.46
we can develop those user interfaces with a combination of Python
147.68
3.6
and JavaScript.
151.28
1.65
Next, we'll turn our attention to testing
152.93
2.1
and CI/CD, or Continuous Integration and Continuous Delivery,
155.03
4.65
which are tools that we can use and software best practices to make sure
159.68
3.39
that we're able to design and develop code more efficiently.
163.07
3.12
And testing in particular makes sure that as we make changes to our code,
166.19
3.76
we're not breaking existing parts of our web application
169.95
2.64
by making sure that we have a whole suite of tests
172.59
2.09
that we can use to ensure that our web application is always
174.68
3
behaving as it should.
177.68
1.95
And finally, we'll turn our attention to scalability and security
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3.47
on the internet, thinking about what happens
183.1
1.84
as our web application grows larger.
184.94
1.8
As more and more different users start to use our web application,
186.74
3.49
how do we load balance between those people?
190.23
1.85
And what do we need to change about our database to make sure lots of users
192.08
3.42
are able to connect to our web application at the same time?
195.5
3.02
Moreover, we'll look at the security implications
198.52
2.05
behind designing our web applications.
200.57
1.89
What might an adversary do if we're not careful?
202.46
2.68
And how should we proactively be designing our web application
205.14
3.02
to make sure that it's secure?
208.16
2.4
But today, we begin our conversation with HTML and CSS,
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3.69
two of the languages that are foundational to understanding web pages
214.25
3.33
and how web browsers are able to display those web pages.
217.58
3.42
And we'll start with each HTML, or HyperText Markup Language,
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3.84