Difference between revisions of "WebFund 2016W Lecture 2"
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** [[Fundamentals_of_Web_Applications:_Winter_2016_Course_Outline#Grading|Midterm date has been tentatively created.]] | ** [[Fundamentals_of_Web_Applications:_Winter_2016_Course_Outline#Grading|Midterm date has been tentatively created.]] | ||
** [[WebFund_2016W:_Assignment_1|Assignment #1 has been posted.]] | ** [[WebFund_2016W:_Assignment_1|Assignment #1 has been posted.]] | ||
====JavaScript: As a Language==== | |||
* JavaScript has '''nothing''' to do with Java. | |||
** Why is it even called JavaScript then? At first it wasn't; it was developed as Mocha, changed to LiveScript and then finally renamed to JavaScript due to an agreement with Sun (acquired by Oracle).<ref name="Stackoverflow">[http://stackoverflow.com/a/2475528]</ref> | |||
* The only similarity between Java/JavaScript is some of the syntax, but that can be said for a lot of languages. | |||
* What's different about JavaScript? | |||
** No declared data types; it's a "loose" language. | |||
*** Instead of int i = 0, it's simply var i = 0. | |||
** There's seven data types<ref name="Stackoverflow">[https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures (examples in brackets). | |||
]</ref> | |||
*** Boolean (true, false) | |||
*** Number (3.1337, 1337, etc. There's no integer or long, everything is a float) | |||
*** String ("Dave") | |||
*** Symbol | |||
*** Object | |||
*** Null | |||
*** Undefined | |||
Revision as of 16:13, 13 January 2016
Video
The video from the lecture given on January 12, 2016 is now available.
Notes
In-class Notes
Lecture #2 ---------- JavaScript * no declared types - strings - objects - arrays - numbers (floats) - boolean With Node - asynchronous (non-blocking) I/O
Student Notes
- Administration Reminders
JavaScript: As a Language
- JavaScript has nothing to do with Java.
- Why is it even called JavaScript then? At first it wasn't; it was developed as Mocha, changed to LiveScript and then finally renamed to JavaScript due to an agreement with Sun (acquired by Oracle).<ref name="Stackoverflow">[1]</ref>
- The only similarity between Java/JavaScript is some of the syntax, but that can be said for a lot of languages.
- What's different about JavaScript?
- No declared data types; it's a "loose" language.
- Instead of int i = 0, it's simply var i = 0.
- There's seven data types<ref name="Stackoverflow">[https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures (examples in brackets).
- No declared data types; it's a "loose" language.
]</ref>
- Boolean (true, false)
- Number (3.1337, 1337, etc. There's no integer or long, everything is a float)
- String ("Dave")
- Symbol
- Object
- Null
- Undefined