learn haskell for great good

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[Learning you a Haskell for great goods!] Chapter 01 starting out

]FalseGhci> null []True # Reverse list Ghci> reverse [5, 4, 3, 2, 1][1, 2, 3, 4, 5] # Take the first n elements Ghci> take 3 [5, 4, 3, 2, 1][5, 4, 3]Ghci> take 1 [3, 9, 3][3]Ghci> take 5 [1, 2][1, 2]Ghci> take 0 [6, 6][] # Drop the first n elements Ghci> drop 3 [,][1, 5, 6]Ghci> drop 0 [1, 2, 4][1, 2, 3, 4]Ghci> drop 100 [,][] # Element in list or not Ghci> 4 'elem '[1, 4]True Or Ghci> ELEM 4 [1, 4]True # Range Ghci> [1 .. 4][1, 2, 3, 4] # Replicate Ghci> replicate 3 10[10, 10, 10] # List Compr

Learn Haskell and groovy from Java and JavaScript

" function programming, but some are "have to" function-type programming. The two major trends of programming language development are dynamic language and functional language. So with groovy representing the dynamic language, I've always wanted to learn a functional language. Functional programming is like a function in mathematics, the only given input parameters, you can uniquely determine the output results, no context, no effect of the number of

In python, did list, listcomprehension, tuple, zip and so on learn from haskell?

0 reply content: No! First, the list of Python is different from the list of Haskell .. The latter is a linked list, and the former is a dynamic array .. Then the implementation of Haskell's list comprehension relies on converting to map/filter (fusion optimization is not considered), and finally implementing it through recursion; the implementation of list comprehension in Python depends on the _ iter _ method (that is, the meaning of the itera

Get started now to learn HTML tags. The following is the label of my notes to share to the platform inside the great gods. You need the great God to add and those common labels. Please note that the advice is appreciated

picture tag: WhitespaceGet started now to learn HTML tags. The following is the label of my notes to share to the platform inside the great gods. You need the great God to add and those common labels. Please note that the advice is appreciated

Learn to think--rookie programmer's Way to the great God

that you will find similar code from the Internet or from a book;The second is to consult others, this method is not likely to feel, because in the work, we are very busy, mutual discussion to help very little.Internet search time we will often appear this phenomenon: see this to write the program, feel that they have no ideas, their own search from the internet, looking for a long time we harvest little, see a lot of ways to achieve, but we spend a very lengthy period to understand, so althoug

[Jquery] great ways to learn jquery

. Rebecca murphey-started the open-source e-book jquery fundementals and is a member of the yayquery podcast. Karl swedberg-wrote the learning jquery books and runs this website. Marc grabanski-creator of the jquery UI datepicker project and blogger. Ordered list-all around und great guys, creators of the harmony CMS, and active speakers and writers. Conferences Carsonified online jquery Conference Official jquery conference-h

Want to switch to be a web front-end engineer, must learn these 6 great skills!

on. Because the Web front-end is divided into two major directions, design and development, if mastered these two technologies, equal to have the enterprise most need technical skills, then you are the enterprise scramble to recruit talent. The system learns the Web front end, becomes an excellent web front-end engineer, to know the sea carpenter storehouse http://www.zhihaijiangku.com, originates from the NetEase department, the project teaching, the employment guidance, the graduation namely

An old IT engineer's advice, the novice came in to learn, the veteran came in to experience, a great harvest.

!! Extraordinary is to cultivate their reputation in the industry, have a reputation, high-paying opportunities from a few, more important is the opportunity to cooperate ... [10] The shot was shot! There can never be 100% certainty!!! the conditions are almost bold to do, to break out of their own business, do not hesitate, do not wander, do not necessarily succeed, but at least for the next shock accumulated experience, do not do forever, and to dry must experience failure. Do not experience w

Learn JavaScript you have to master in 8 great points of knowledge!

Learning JavaScript you have to master it. 8 Big knowledge Point! First, JavaScript Mind Mapping variable > LearningSecond, JavaScript mind map Third, JavaScript Mind map Iv. JavaScript Mind Map JavaScript Vi. JavaScript Mind Mapping Seven, JavaScript Mind Mapping Viii. JavaScript Mind Mapping Learn JavaScript you have to master in 8 great points of knowledge!

Accompany my wife to learn Photoshop Lecture 4-how to make a city map with great artistic Conception

Wife, this time we make a tall figure, which is often used in the current advertisements. It's not bad. Oh ,: 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/49/B5/wKioL1QZSInwjQa9AAa5bw62WLM405.jpg "style =" float: none; "Title =" q1_png "alt =" wkiol1qzsinwjqa9aaa5bw62wlm405.jpg "/> 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/49/B3/wKiom1QZSHGRYtOHAAJcsZHWE4I322.jpg "style =" float: none; "Title =" Z (I9 (% 5nh) akiw {~ G90ody.jpg "alt =" wkiom1qzshgrytohaaj

Python captures the movie Heaven, 0 basic can learn? SOURCE & Video tutorial, great!

I use Python to crawl the movie Heaven contains the source code is very clear, so that 0 basic Python novice can easily learn, really not too much.Let's look at some of our code and crawl to the results:Crawled Movie Resources: (You can get a video tutorial)Steps:1, first import the required modules2, access to web information, analytic results3. Store results3. Write the main function4. Running source codeTools:VS Code, Python3Python crawls the lates

10 great websites to learn Android development

. AndroidhiveAndroidhive is a personal blog, mainly write the Android development of the tutorial, although only a person, but provided a drawing, to write tutorials, functional video presentation, but also show the blogger's professional and dedicated, Bo Master writing something is also following the new technology, can be particularly strong practicality.6. Android sdk-tuts+ CodeTuts+ is a technical tutorial, course and ebook website, basically popular technology is offered, his tutorials are

Learn JavaScript you have to master in 8 great points of knowledge!

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Learn notes from wwdc:building great Workout Apps

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JavaScript and Aaron great God learn jquery source notes

interior divide a new constructor init? jquery uses the Init method on the new prototype prototype as the constructor, so the prototype chain method of Init is the method of the instance, so jquery divides 2 different invocation modes by 2 constructors, one static and one prototype.method is shared, and the instance method is taken from a static method, 2 constructors are completely isolated, how do you handle this?Look at the scenario that jquery gives:The finishing touch of a init.prototype =

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