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What do the makefile symbols $@ and $< mean?
... of a .PHONY target.
– Ephemera
Apr 11 '15 at 8:04
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When to use Amazon Cloudfront or S3
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edited Feb 11 '16 at 1:16
Simon East
42.6k1313 gold badges124124 silver badges116116 bronze badges
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ActiveRecord OR query
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110
Use ARel
t = Post.arel_table
results = Post.where(
t[:author].eq("Someone").
or(t[:title...
How to concatenate items in a list to a single string?
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11 Answers
11
Active
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JavaScript - Getting HTML form values
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116
HTML:
<input type="text" name="name" id="uniqueID" value="value" />
JS:
var nameValu...
How can one use multi threading in PHP applications
...tart -sleeps 2
12:00:08pm: D -finish
12:00:09pm: B -finish
12:00:11pm: A -finish
12:00:16pm: C -finish
Second Run
12:01:36pm: A -start -sleeps 6
12:01:36pm: B -start -sleeps 1
12:01:36pm: C -start -sleeps 2
12:01:36pm: D -start -sleeps 1
12:01:37pm: B ...
How to obtain the start time and end time of a day?
...o obtain the java.time classes?
Java SE 8, Java SE 9, Java SE 10, Java SE 11, and later - Part of the standard Java API with a bundled implementation.
Java 9 brought some minor features and fixes.
Java SE 6 and Java SE 7
Most of the java.time functionality is back-ported to Java 6 & 7 in T...
What is the error “Every derived table must have its own alias” in MySQL?
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answered Dec 11 '09 at 15:31
PaulPaul
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Get time in milliseconds using C#
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11
how expensive is it though? maybe we should stopwatch a stopwatch :)
– jb.
Oct 25 '10 at 16:38
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Purpose of returning by const value? [duplicate]
...const value, and you could write:
(a + b).expensive();
In the age of C++11, however, it is strongly advised to return values as non-const so that you can take full advantage of rvalue references, which only make sense on non-constant rvalues.
In summary, there is a rationale for this practice, b...