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How to check if activity is in foreground or in visible background?
...nditions are met.
The source also mentions two wrong solutions...so avoid doing that.
Source: stackoverflow
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App can't be opened because it is from an unidentified developer
...ould be a button saying Open Anyway, under the General tab.
You can avoid doing this by changing the options under Allow apps downloaded from:, however I would recommend keeping it at the default Mac App Store and identified developers.
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Factors in R: more than an annoyance?
...fferent: see this email or ?"[.data.frame". Using drop=TRUE on data.frames does not work as you'd imagine:
x <- subset(iris, Species == 'setosa', drop=TRUE) # susbetting with [ behaves the same way
x$Species
# [1] setosa setosa setosa setosa setosa setosa setosa setosa setosa setosa
# [11] set...
How do I check if a string is a number (float)?
...d be faster than the above. It calls the function and returns. Try/Catch doesn't introduce much overhead because the most common exception is caught without an extensive search of stack frames.
The issue is that any numeric conversion function has two kinds of results
A number, if the number is...
What is the difference between a thread and a fiber?
...d stop in well-defined places so data integrity is much less of an issue", Do you mean that when sharing variables, we do not need to use "locking mechanisms" and volatile variables? Or do you mean that we still need to do those things?
– Pacerier
Jun 18 '15 at...
string to string array conversion in java
I have a string = "name";
I want to convert into a string array.
How do I do it?
Is there any java built in function? Manually I can do it but I'm searching for a java built in function.
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How can I rollback a github repository to a specific commit?
... edited Nov 13 '15 at 2:00
SeldomNeedy
7121010 silver badges1919 bronze badges
answered Dec 7 '10 at 1:03
jt...
How can I delete one element from an array by value
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@user3721428, delete(3) does not refer to the element in position 3 but instead deletes any element matching the integer 3. It will remove all occurrences of 3 and has nothing to do with the arrays index or position.
– bkunzi0...
How to convert JSON data into a Python object
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UPDATE
With Python3, you can do it in one line, using SimpleNamespace and object_hook:
import json
from types import SimpleNamespace
data = '{"name": "John Smith", "hometown": {"name": "New York", "id": 123}}'
# Parse JSON into an object with attribute...
Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
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Be careful doing this if you aren't already on the latest version of Postgres. You'll need to reinstall the old Postgres alongside the new one and then do a pg_upgrade
– dazonic
Jan 2 '17 at 2:49
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