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Top Questions

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75

votes

5

answers

6k

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What exactly does the anonymous JavaScript function f => f do?

javascript ecmascript-6

answered Dec 22 '16 at 19:17 prosti 541

131

votes

4

answers

6k

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Does Java have a “private protected” access modifier?

java access-modifiers

modified Jan 8 at 17:11 NATS 120

72

votes

11

answers

7k

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Sorting in Computer Science vs. sorting in the 'real' world [closed]

algorithm sorting time-complexity

modified yesterday user1952500 3,810

50

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10

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5k

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If an element already exists in an array, don't add it again

javascript arrays

modified Jan 11 at 8:30 user3297291 7,563

82

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7

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8k

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What is the difference between i = i + 1 and i += 1 in a 'for' loop? [closed]

python loops numpy operators

modified Jan 10 at 23:45 Farhad Ghezelloo 1

76

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4

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5k

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This code hangs in release mode but works fine in debug mode

c#

modified 2 days ago chue x 14.7k

77

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4

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5k

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Is there a limit to the number of nested 'for' loops?

c# for-loop compilation limit

modified Dec 30 '16 at 5:20 Chemical Engineer 354

41

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15

answers

5k

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Is it possible to change a C++ object's class after instantiation?

c++ inheritance

modified Dec 21 '16 at 14:42 bolov 14.3k

110

votes

1

answer

5k

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Why is sum so much faster than inject(:+)?

ruby

modified Jan 5 at 23:51 Eli Sadoff 4,005

33

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11

answers

5k

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What does just “;” inside an “if” block mean? [closed]

c

modified Jan 12 at 9:04 Marc van Leeuwen 1,922

56

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4

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2k

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Adding smallest possible float to a float

c++ c++11 floating-point

modified Dec 26 '16 at 9:53 ks1322 15.2k

43

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6

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2k

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Get size of std::array without an instance

c++ c++11 stdarray

modified Dec 28 '16 at 18:39 Tas 3,099

26

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10

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3k

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Does C check if a pointer is out-of-bound without the pointer being dereferenced?

c pointers

answered 16 hours ago supercat 44k

37

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13

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726

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compare text inside 2 div elements using javascript or jquery

javascript jquery html

answered Dec 30 '16 at 22:41 Vasily Liaskovsky 541

25

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12

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965

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Altering trained images to train neural network

machine-learning computer-vision neural-network conv-neural-network training-data

answered 2 days ago Dellein 234

17

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8

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How to create a background image on a web-page that cannot be copied [closed]

javascript html css background-image

modified Jan 4 at 0:26 jpmc26 9,591

45

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2

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3k

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Why to avoid creating objects in JavaScript?

javascript

modified Jan 4 at 20:03 ıɯɐƃoʇ ǝızuǝʞ 1,586

42

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3

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4k

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The first snippet below compiles, but the second doesn't. Why?

c++ language-lawyer

answered Jan 5 at 9:53 theo2003 150

46

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3

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2k

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How can I tell whether a generator was just-started?

python generator yield

modified Dec 24 '16 at 5:59 Steven Penny 40.3k

30

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5

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3k

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When should streams be preferred over traditional loops for best performance? Do streams take advantage of branch-prediction?

java performance java-8 java-stream branch-prediction

answered Dec 27 '16 at 23:13 Sergey Fedorov 1,426

75

votes

2

answers

5k

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A 'for' loop that appears to be practically infinite

c++

modified Dec 27 '16 at 21:02 Amir Saniyan 3,861

49

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3

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2k

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Where are generic methods stored?

c# .net generics

modified Jan 11 at 7:01 Theodoros Chatzigiannakis 19.4k

55

votes

3

answers

3k

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Java program runs slower when code that is never executed is commented out

java recursion compiler-optimization

modified Jan 5 at 4:35 Moshe Katz 5,652

50

votes

3

answers

1k

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Why does the number of elements in a initializer list cause an ambiguous call error?

c++ initializer-list ambiguous overload-resolution

modified Jan 6 at 14:24 NathanOliver 45.9k

35

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4

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2k

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Making identical C++ type aliases incompatible

c++ c++11

modified Dec 24 '16 at 11:19 oz1cz 1,362

18

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12

answers

1k

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Find the number of characters in a file using Python

python count character

answered Jan 7 at 3:04 Mego 432

25

votes

5

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2k

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Why would C have “fake arrays”? [on hold]

c arrays

modified yesterday hyde 24.2k

49

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4

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2k

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Java generics: why is this output possible?

java generics intellij-idea jshell

modified Jan 11 at 9:08 Maroun Maroun 61.5k

25

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3

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2k

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What is the largest amount of memory I can allocate on my MacBook Pro? [closed]

c++ memory allocation

modified Jan 1 at 0:57 Mark 2,034

69

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2

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3k

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Corrupted string in C#

c# string

answered Dec 23 '16 at 10:50 Sid 2,274

15

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7

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1k

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Should I expect to see the counter in `for` loop changed inside its body? [closed]

for-loop design loop-counter

modified Dec 29 '16 at 22:29 vaxquis 6,041

35

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4

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792

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In Javadocs, how should I write plural forms of singular Objects in <code> tags?

java javadoc grammar

answered Jan 5 at 0:30 siegi 2,216

43

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2

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2k

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Is it legal to pass a non-null-terminated string to strncmp in C?

c standards standard-library strncmp

modified Jan 2 at 17:20 coderredoc 4,514

31

votes

8

answers

940

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Hide Email Address from Bots - Keep mailto:

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modified Jan 3 at 5:37 Brian 1,527

19

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8

answers

1k

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How do I select an extra row for each row in the result set in SQL?

sql sql-server

modified Dec 27 '16 at 18:52 user184411 21

35

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3

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2k

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Inline functions - what are they exactly vis-a-vis the inline keyword?

c++ function inline

modified Jan 6 at 13:48 user8469759 686

64

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1

answer

2k

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Why is Math.pow() (sometimes) not equal to ** in JavaScript?

javascript google-chrome v8 ecmascript-7

modified 5 hours ago M Hamza Javed 6

22

votes

4

answers

2k

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C++ safe bool wrapper

c++ boolean

modified 1 hour ago Barry 109k

16

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10

answers

951

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Sort an array of integers into odd, then even

javascript arrays algorithm sorting

modified Jan 9 at 12:18 Dinesh Verma 69

20

votes

5

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2k

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Factoring try catch

java

modified Jan 10 at 14:58 cheb1k4 587

24

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3

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2k

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Will C++17 support the simpler Range-based For Loop?

c++ c++11 standards

modified Dec 23 '16 at 11:57 Qwertiy 3,828

13

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5

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2k

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Find a number in an array

java arrays algorithm

modified Dec 29 '16 at 11:44 paxdiablo 506k

24

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1k

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What is the difference between window.console.log and console.log

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modified Jan 3 at 18:42 T.J. Crowder 508k

21

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How do overridden method calls from base-class methods work?

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modified Jan 4 at 23:12 Jim Fasarakis-Hilliard 33.1k

21

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4

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2k

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How to use LINQ to find a sum?

c# linq

modified Dec 21 '16 at 12:26 Panagiotis Kanavos 32.1k

24

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3k

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Why is JavaScript bind() necessary?

javascript this bind

modified Jan 14 at 9:02 Vincent J 103

33

votes

5

answers

1k

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Why is BufferedReader read() much slower than readLine()?

java bufferedreader benchmarking

modified Dec 27 '16 at 18:28 hagrawal 4,577

9

votes

7

answers

1k

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Store an int in a char buffer in C and then retrieve the same

c++ c

modified Jan 12 at 6:33 Peter A. Schneider 7,576

19

votes

3

answers

1k

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Nested generator expressions behave unexpectedly

python generator

modified Jan 13 at 21:02 Jim Fasarakis-Hilliard 33.1k

24

votes

2

answers

1k

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Why does list ask about len?

python python-internals

modified Jan 7 at 22:54 Jim Fasarakis-Hilliard 33.1k

20

votes

3

answers

1k

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Type id of std::string for variable vs. string in argument?

c++ string c++11 string-literals

modified Jan 9 at 23:42 Peter Mortensen 10.6k

7

votes

11

answers

890

views

a = &b vs *a = &b — pointer assignment

c pointers variable-assignment

answered Jan 2 at 16:41 Ilmari Karonen 32.3k

19

votes

2

answers

1k

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The 'this' pointer in the initialization list of the constructor

c++ syntax-error this language-lawyer ctor-initializer

modified Jan 13 at 13:29 curiousguy 3,812

17

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7

answers

2k

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Should the loop limit be evaluated or stored?

c++ optimization

modified Dec 31 '16 at 19:18 Walter 17.8k

20

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4

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1k

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Running “npm start” fails due to error

angularjs node.js npm

answered Dec 25 '16 at 3:25 ninetiger 544

20

votes

2

answers

851

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Pythonic way to replace list values with upper and lower bound (clipping)?

python arrays numpy clip clamp

modified Dec 30 '16 at 21:45 mathmandan 370

17

votes

3

answers

659

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A constexpr function with delayed initialization of local variables

c++ constexpr

modified Jan 7 at 14:52 Alessandro Power 711

20

votes

2

answers

969

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Why does Math.min([]) evaluate to 0? [closed]

javascript

modified Jan 11 at 22:09 James Monger 2,655

18

votes

2

answers

1k

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Strange behavior with '_' (underscore) in Ruby

ruby irb

modified Jan 6 at 13:36 Lucas Costa 517

10

votes

5

answers

857

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Why does malloc() fail when there is enough memory?

c++ c memory malloc

modified Jan 12 at 3:58 ketan 13.3k

22

votes

3

answers

716

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What special rules does the scala compiler have for the unit type within the type system

scala functional-programming static-typing

modified Dec 21 '16 at 2:39 Michael Zajac 38.9k

18

votes

4

answers

2k

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What is the Logic Working Behind of this Query?

sql sql-server

modified Jan 10 at 9:48 Martin Brown 14k

16

votes

9

answers

770

views

jQuery clone div everytime clicked

javascript jquery html css

modified Dec 19 '16 at 11:31 Allan Pereira 2,011

21

votes

3

answers

1k

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Why is there a “d” in the definition of Double.NaN = 0.0d / 0.0?

java

modified Dec 27 '16 at 16:42 Lunyx 1,187

9

votes

5

answers

1k

views

Python: Censoring a word in text but last word does not censor

python

answered Jan 13 at 8:27 Aashutosh jha 25

15

votes

8

answers

2k

views

Unable to lookup the settings for submission for the application at this time due to a general error

xcode xcode8

answered 51 mins ago Andrea Gherardi 424

29

votes

5

answers

1k

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Divide the list into three lists such that their sum are close to each other [closed]

python algorithm

modified Dec 21 '16 at 15:43 kezzos 1,315

12

votes

5

answers

743

views

“Async All the Way Down”: Well, what's all the way at the bottom? [closed]

c# .net asynchronous async-await

answered Jan 3 at 9:40 Cody Gray 154k

15

votes

4

answers

712

views

Purpose of defining POSITIVE_INFINITY, NEGATIVE_INFINITY, NaN constants only for floating-point data types, but not for integral data types [closed]

java

modified Dec 27 '16 at 7:53 Peter Mortensen 10.6k

13

votes

1

answer

1k

views

+= operator appears to modify frozen string

ruby

modified Jan 8 at 6:28 Spirit 23

33

votes

1

answer

1k

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Big differences in GCC code generation when compiling as C++ vs C

c++ c gcc assembly x86-64

modified Dec 23 '16 at 2:02 Jester 38.5k

9

votes

5

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683

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Function template return type deduction

c++ c++11 templates c++14

modified Jan 2 at 21:59 Tas 3,099

17

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6

answers

584

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Is actively throwing AssertionError in Java good practice? [closed]

java assertion

modified Dec 28 '16 at 18:31 dimo414 21.8k

10

votes

7

answers

349

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How do I search a string in JavaScript array using jQuery? [closed]

javascript jquery arrays

modified Dec 24 '16 at 17:42 kukkuz 14.5k

13

votes

3

answers

2k

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In React.js should I make my initial network request in componentWillMount or componentDidMount?

javascript reactjs

modified Jan 12 at 13:00 John Weisz 4,288

27

votes

3

answers

1k

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Using !s vs. :s to format a string in Python

python string python-3.x string-formatting

modified Jan 13 at 19:54 Jim Fasarakis-Hilliard 33.1k

15

votes

2

answers

1k

views

Is '# -- coding: utf-8 --' also a comment in Python?

python encoding comments

modified 20 hours ago Martijn Pieters♦ 524k

13

votes

4

answers

728

views

Is there a way to do multiple assignment and initialization with block scope?

javascript scope

modified Jan 9 at 21:56 Bergi 233k

15

votes

5

answers

538

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Floating point division returns integer numbers [closed]

c#

modified Dec 21 '16 at 10:00 CodeCaster 80.7k

15

votes

3

answers

663

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An item in IEnumerable does not equal an item in List

c# linq list lambda ienumerable

modified Dec 21 '16 at 20:44 Peter Mortensen 10.6k

15

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3

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1k

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Understanding the weird syntax with curly braces in a constructor initializer list

c++

modified Dec 18 '16 at 22:49 isanae 2,046

21

votes

4

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530

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Trying to find the number of x's that satisfies n + x = n ^ x fails with timeout

java algorithm bit-manipulation java-stream xor

modified Jan 13 at 13:05 Dan 2,493

17

votes

4

answers

806

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How to prevent a template class from being derived more than once?

c++ templates inheritance

modified 6 hours ago Potatoswatter 95.1k

16

votes

3

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975

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javascript

modified Dec 28 '16 at 16:01 Oriol 104k

10

votes

9

answers

432

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javascript jquery html

modified Jan 9 at 13:43 Nadir Laskar 440

14

votes

2

answers

1k

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what benefits are there to using a span instead of input

javascript html html5

modified Jan 12 at 15:14 poke 136k

20

votes

4

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347

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Variable type annotation NameError inconsistency

python python-3.x annotations python-3.6

modified Jan 1 at 19:50 ADR 437

8

votes

2

answers

717

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Why “foo\\<NEWLINE>bar” becomes “foo\bar” after “gcc -E”?

c

modified Jan 9 at 8:05 Jonathan Leffler 455k

12

votes

9

answers

776

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python list python-3.x

modified Dec 19 '16 at 18:40 Moinuddin Quadri 14.8k

26

votes

1

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736

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Accessing the name of a private-inherited class from a subclass

c++ inheritance

modified Jan 11 at 23:26 Rob 18.2k

12

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3

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540

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modified Dec 25 '16 at 11:24 wasthishelpful 8,272

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How much memory does int x[10] allocate?

c malloc

modified Jan 4 at 16:18 giusti 1,485

11

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4

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685

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c++ c++11

modified Jan 12 at 12:39 Potatoswatter 95.1k

9

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4

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521

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Multiply all elements of a list together (another list index out of range issue)

python python-2.7

modified Jan 2 at 23:37 user3684792 1,066

12

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5

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496

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Python list error: [::-1] step on [:-1] slice

python slice reverse

modified Jan 3 at 2:47 John B 2,682

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