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Loading a properties file from Java package
I need to read a properties files that's buried in my package structure in com.al.common.email.templates .
9 Answers
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SQL SELECT speed int vs varchar
...select by id: B=about 200us C=about 200us
* inserts to the table already containing 4M records
so it looks like for this setup, as long as your indexes fit in RAM, bigint vs 16-char text makes no difference in speed.
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Cloning an Object in Node.js
....assign({}, source);
If available (e.g. Babel), you can use the object spread operator:
let cloned = { ... source };
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Declaring an unsigned int in Java
...g the ability to use unsigned datatypes. From the various sources online I read from, it seems like it revolves around just widening the maximum value, and the implicit by nature guarantee that it's a positive number. Is my understanding correct, or are there other major reasons? Also, now that the ...
How to get key names from JSON using jq
...;(jq -r 'keys[]' ms.json)
On older BASH you can do:
arr=()
while IFS='' read -r line; do
arr+=("$line")
done < <(jq 'keys[]' ms.json)
Then print it:
printf "%s\n" ${arr[@]}
"Archiver-Version"
"Build-Id"
"Build-Jdk"
"Build-Number"
"Build-Tag"
"Built-By"
"Created-By"
"Implementation-Ti...
What is wrong with using goto? [duplicate]
I was ramdomming through xkcd and saw this one (if also read some negative texts about them some years ago):
What is actually wrong with it? Why are goto's even possible in C++ then?
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How do you beta test an iphone app?
...ertificate From a Certificate Authority...
The dialog that pops up should aready have your email and name it it.
Select the radio button Saved to disk and Continue.
Save the file to disk.
Go back to the Provisioning Portal.
Go to the section Certificates.
Go to the tab Distribution.
Click the button...
End of support for python 2.7?
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you should read this carefully (ref : https://news.ycombinator.com/item?id=7582300 ):
There are a lot of comments here from people who aren't on the python-dev list and don't really understand what this diff actually means.
The co...
Importance of varchar length in MySQL table
... everyone interesting in MySQL storage (about CHAR and VARCHAR) should read the link mentioned in this answer. Thanks!
– Pascal
Feb 25 '16 at 9:21
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When do we need curly braces around shell variables?
...without $ and without {}. You have to use
var=10
to assign. In order to read from the variable (in other words, 'expand' the variable), you must use $.
$var # use the variable
${var} # same as above
${var}bar # expand var, and append "bar" too
$varbar # same as ${varbar}, i.e expand a ...