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What does the tilde (~) mean in my composer.json file?
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Tilde means next significant release. In your case, it is equivalent to >= 2.0, < 3.0.
The full explanation is at Tilde Version Range docs page:
The ~ operator is best explained by example: ~1.2 is equivalent to >=1.2 <2.0.0, whi...
Get last field using awk substr
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If you're open to a Perl solution, here one similar to fedorqui's awk solution:
perl -F/ -lane 'print $F[-1]' input
-F/ specifies / as the field separator
$F[-1] is the last element in the @F autosplit array
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MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
...yword VALUES to refer to new values (see documentation).
INSERT INTO beautiful (name, age)
VALUES
('Helen', 24),
('Katrina', 21),
('Samia', 22),
('Hui Ling', 25),
('Yumie', 29)
ON DUPLICATE KEY UPDATE
age = VALUES(age),
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Java “user.dir” property - what exactly does it mean?
...ectory. It can be anywhere where the user has permission to run java.
So if you cd into /somedir, then run your program, user.dir will be /somedir.
A different property, user.home, refers to the user directory. As in /Users/myuser or /home/myuser or C:\Users\myuser.
See here for a list of syste...
Converting JSONarray to ArrayList
...ArrayList<String>();
JSONArray jArray = (JSONArray)jsonObject;
if (jArray != null) {
for (int i=0;i<jArray.length();i++){
listdata.add(jArray.getString(i));
}
}
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Disable HttpClient logging
...f. I've tried following the instructions here but none of them make any difference.
31 Answers
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How do you log content of a JSON object in Node.js?
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Try this one:
console.log("Session: %j", session);
If the object could be converted into JSON, that will work.
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Notification when a file changes?
Is there some mechanism by which I can be notified (in C#) when a file is modified on the disc?
3 Answers
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Adding a favicon to a static HTML page
.... man lol i rate i am going to restart it all and then try boot up and see if maybe its cashing wrong or something..
– TheLegend
Mar 30 '12 at 13:27
6
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Delete the first three rows of a dataframe in pandas
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So if you want to delete from row 3 to row 9, for example, how would you do it? df=df.iloc[3:9]?
– M.K
Jun 26 '19 at 14:25
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