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Why is arr = [] faster than arr = new Array?
I ran this code and got the below result. I curious to know why [] is faster?
5 Answers
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How to get the number of Characters in a String?
...ust type casting.
len([]rune("世界")) will print 2. At leats in Go 1.3.
And with CL 108985 (May 2018, for Go 1.11), len([]rune(string)) is now optimized. (Fixes issue 24923)
The compiler detects len([]rune(string)) pattern automatically, and replaces it with for r := range s call.
Adds a new run...
Reading Xml with XmlReader in C#
I'm trying to read the following Xml document as fast as I can and let additional classes manage the reading of each sub block.
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Twig for loop for arrays with keys
I use Twig and I have an array with keys like this:
4 Answers
4
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PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
...hout spaces. It is easier to recognize that we are using keyword arguments and not assigning a variable to itself.
Also, parameters tend to go in the same line whereas assignments usually are each one in their own line, so saving space is likely to be an important matter there.
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How to create REST URLs without verbs?
...n restful URLs. I'm all for the restful approach of using URLs with nouns and not verbs don't understand how to do this.
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How do I prevent 'git diff' from using a pager?
Is there a command line switch to pass to git diff and other commands that use the less pager by default?
17 Answers
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What are all the differences between src and data-src attributes?
What are differences and consequences (both good and bad) of using either data-src or src attribute of img tag? Can I achieve the same results using both? If so, when should be used each of them?
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Is it better to specify source files with GLOB or each file individually in CMake?
...ouch" the CMakeLists.txt that does the glob, either by using the touch command or by writing the file with no changes. This will force CMake to re-run and pick up the new file.
To fix the second problem you can organize your code carefully into directories, which is what you probably do anyway. In ...
Difference between @Before, @BeforeClass, @BeforeEach and @BeforeAll
...nstance of your test fixture is created.
In JUnit 5, the tags @BeforeEach and @BeforeAll are the equivalents of @Before and @BeforeClass in JUnit 4. Their names are a bit more indicative of when they run, loosely interpreted: 'before each tests' and 'once before all tests'.
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