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How to add /usr/local/bin in $PATH on Mac
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One note: you don't need quotation marks here because it's on the right hand side of an assignment, but in general, and especially on Macs with their tradition of spacy pathnames, expansions like $PATH should be double-quoted as "$PATH".
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How to convert a string of numbers to an array of numbers?
...th noting that Number() won't force integers, only numbers. If you need to cast specifically to ints, use parseInt(). "1.1,2,3".split(",").map(Number) is [1.1, 2, 3] whereas "1.1,2,3".split(",").map(item => parseInt(item, 10)) is [1, 2, 3]
– dtbarne
Apr 30 '...
Difference between binary semaphore and mutex
Is there any difference between a binary semaphore and mutex or are they essentially the same?
34 Answers
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Is gettimeofday() guaranteed to be of microsecond resolution?
...h, I believe the resolution of gettimeofday() is 10us. It can jump forward and backward and time, consequently, based on the processes running on your system. This effectively makes the answer to your question no.
You should look into clock_gettime(CLOCK_MONOTONIC) for timing intervals. It suffers ...
Modify table: How to change 'Allow Nulls' attribute from not null to allow null
...able [' + so.name + '] alter column [' + sc.name + '] ' + st.name + '(' + cast(sc.max_length as varchar(4)) + ') NULL'
else
'alter table [' + so.name + '] alter column [' + sc.name + '] ' + st.name + ' NULL'
end as query
from sys.columns sc
inner join sys.types st on st.system_type_id = sc.system_...
best way to add license section to iOS settings bundle
...lication uses a number of third party components licensed under Apache 2.0 and similar licenses, which requires me to include various bits of text, this kind of thing:
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“elseif” syntax in JavaScript
... a branch whose condition is merely "truthy" will not be executed. You can cast a truthy value to true with double negation: !!condition.
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Python Requests and persistent sessions
...n 2.5).
I have figured out how to submit data to a login form on a website and retrieve the session key, but I can't see an obvious way to use this session key in subsequent requests.
Can someone fill in the ellipsis in the code below or suggest another approach?
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Linux/Unix command to determine if process is running?
I need a platform independent (Linux/Unix|OSX) shell/bash command that will determine if a specific process is running. e.g. mysqld , httpd ...
What is the simplest way/command to do this?
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C++, What does the colon after a constructor mean? [duplicate]
...time that you can change a const member variable : something like *const_cast<int*>(&m_val)+=5; may be used to override constness & volatility
– sjsam
Apr 14 '15 at 10:12
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