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Check if a program exists from a Makefile
...= $(foreach exec,$(EXECUTABLES),\
$(if $(shell which $(exec)),some string,$(error "No $(exec) in PATH")))
Note the use of the := assignment operator that is required in order to force immediate evaluation of the RHS expression. If your Makefile changes the PATH, then instead of the last li...
Executing multiple commands from a Windows cmd script
...e call for it as in call mvn install; normally you don't need to create an extra cmd file.
– jfpoilpret
Sep 13 '12 at 8:17
2
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How do I Sort a Multidimensional Array in PHP [duplicate]
...set contains columns that cannot be compared in a "dumb" manner (e.g. date strings) you can also specify how to convert these items to a value that can be directly compared (e.g. a DateTime instance).
It's associative if you want: this code takes care of sorting items, but you select the actual sort...
What is std::promise?
...ke, suppose we have a function that takes some arguments:
int foo(double, char, bool);
First off, we have the template std::future<T>, which represents a future value of type T. The value can be retrieved via the member function get(), which effectively synchronizes the program by waiti...
What is in your Mathematica tool bag? [closed]
... helper function is useful for creating such cells:
evaluatableCell[label_String, evaluationFunction_] :=
( CellPrint[
TextCell[
""
, "Program"
, Evaluatable -> True
, CellEvaluationFunction -> (evaluationFunction[#]&)
, CellFrameLabels -> {{None...
How to efficiently count the number of keys/properties of an object in JavaScript?
...).length worked best for me, because my return object is sometimes a plain string with no properties within it. _.size(obj) gives me back the length of the string, while _.keys(obj).length returns 0.
– Jacob Stamm
Nov 23 '15 at 23:02
...
node.js database [closed]
...
By default, node_redis will return JavaScript strings for all commands. To get buffers instead, create a client with createClient(port, host, { return_buffers: true });
– Matt Ranney
Sep 20 '11 at 6:40
...
How to change colors of a Drawable in Android?
...
If you want to use a color resource rather than a string (#ff0000 etc), you can use e.g. int iColor = getResources().getColor(R.color.primary)
– Ben Clayton
Aug 20 '14 at 15:02
...
Combine two or more columns in a dataframe into a new column with a new name
...t for example is like: A - B instead of A-B. Is it possible to remove this extra space?
– Chetan Arvind Patil
Oct 6 '17 at 2:35
9
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ITunes review URL and iOS 7 (ask user to rate our app) AppStore show a blank page
....apple.com/app/id353372460
Notice the id in front of the number ... that string is is id353372460, not just 353372460
For anything pre iOS7 the 'old' URL needs to be used, only those could get you straight to the review page. You should also take note that these calls will only work on devices. R...