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How to serialize a lambda?
...rences. For example this code:
import java.io.Serializable;
public class Test {
static Object bar(String s) {
return "make serializable";
}
void m () {
SAM s1 = (SAM & Serializable) Test::bar;
SAM s2 = (SAM & Serializable) t -> "make serializable";
...
Choosing Java vs Python on Google App Engine
...ing the low-level API in Java are faster than JDO on Java, for this simple test. At least if the underlying engine changes, that app should reflect performance changes.
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How to detect when an Android app goes to the background and come back to the foreground
...ecycleOwner. You will need to use the new architecture components 1.1.0 (latest at this time) but it’s specifically designed to do this.
There’s a simple sample provided in this answer but I wrote a sample app and a blog post about it.
Ever since I wrote this back in 2014, different solutions...
How to deal with floating point number precision in JavaScript?
I have the following dummy test script:
42 Answers
42
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MIN/MAX vs ORDER BY and LIMIT
...
In a test with an indexed table with 470 million rows, both queries take 0.00 s. However, if we add to the queries a filter "WHERE field2=x", the query with LIMIT still takes 0.00 s and the query with MIN takes 0.21 s.
...
How to get the connection String from a database
...ng the .udl file will open the Data Link Properties wizard.
Configure and test the connection to your database server.
Close the wizard and open the .udl file with the text editor of your choice and simply copy the connection string (without the Provider=<driver>part) to use it in your C# ap...
Is there a bash command which counts files?
...rminal. And these flags are supported by all the platforms and shells I've tested on. Updating the answer, thanks to you and camh for the input!
– Daniel
Jan 25 '17 at 5:38
3
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How do I get logs/details of ansible-playbook module executions?
...t to the playbook output stream.
tasks:
- name: Hello yourself
script: test.sh
register: hello
- name: Debug hello
debug: var=hello
- name: Debug hello.stdout as part of a string
debug: "msg=The script's stdout was `{{ hello.stdout }}`."
Output should look something like this:
TASK: [...
Reading a resource file from within jar
...m returns null if the resource does not exist so that can be your "exists" test.
– Drew MacInnis
Dec 5 '13 at 19:05
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Rails.env vs RAILS_ENV
...nquirer:
Wrapping a string in this class gives
you a prettier way to test for
equality. The value returned by
Rails.env is wrapped in a
StringInquirer object so instead of
calling this:
Rails.env == "production"
you can call this:
Rails.env.production?
So they aren't exact...