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npm install vs. update - what's the difference?
... installing dependencies.
I've just had a use case where prepublish would call make and the Makefile was designed to fetch dependencies if the package.json got updated. Calling npm install from within the Makefile would have lead to an infinite recursion, while calling npm update worked just fine, ...
How to include (source) R script in other scripts
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There is no such thing built-in, since R does not track calls to source and is not able to figure out what was loaded from where (this is not the case when using packages). Yet, you may use same idea as in C .h files, i.e. wrap the whole in:
if(!exists('util_R')){
util_R<-T
...
Performance - Date.now() vs Date.getTime()
...
These things are the same (edit semantically; performance is a little better with .now()):
var t1 = Date.now();
var t2 = new Date().getTime();
However, the time value from any already-created Date instance is frozen at the time of its construction (or at whatev...
Xcode Debugger: view value of variable
...ovide useful information;
Declared properties could be shown up in a group called properties and allow for (optional) inspection directly in the debugger window. This would also slow down the debugger because of the need to send a message/execute a method in order to get information, but would provi...
Why does this code segfault on 64-bit architecture but work fine on 32-bit?
... a platform where sizeof(int)==sizeof(int*) holds true, for example if the calling convention used different registers for returning pointers than integers)
The comp.lang.c FAQ has an entry discussing why casting the return from malloc is never needed and potentially bad.
...
How to raise a ValueError?
...# -> 6
print(contains('bababa', 'k')) # ->
Traceback (most recent call last):
File "how-to-raise-a-valueerror.py", line 15, in <module>
print(contains('bababa', 'k'))
File "how-to-raise-a-valueerror.py", line 12, in contains
raise ValueError('could not find {} in {}'.forma...
Literal notation for Dictionary in C#?
...> object first as the shortcut syntax is translated to a bunch of Add() calls (like your code):
var data = new Dictionary<string, string>
{
{ "test", "val" },
{ "test2", "val2" }
};
In C# 6, you now have the option of using a more intuitive syntax with Dictionary as well as any ...
Optimising Android application before release [closed]
...s updated often. And TextView performs allocations internally whenever you call setText() with a CharSequence. But it doesn't allocate anything with the setText(char[] text, int start, int len) variant. This isn't documented, and no one answered when I asked about it.
There are many ones like this...
HttpURLConnection timeout settings
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N.B. !!! you need to call setConnectTimeout before any of the methods that implicitly connect (basically all the methods that throw IllegalStateException if already connected). Ideally make setConnectTimeout (readTimeout) the first methods called...
Custom bullet symbol for elements in that is a regular character, and not an image
...re pseudo-selector that you and @Tieson T. both point to. I liked that you called out how the various attributes on <UL> work in concert to mimic bullet indentation.
– idStar
Oct 8 '11 at 21:08
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