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How to initialize log4j properly?
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Hi a3. 14_Infinity where i should use this? i can't understand. even i have referred more answers for this issue. please help me
– Ravi Potnuru
Jul 27 '17 at 10:06
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Is it possible to use a div as content for Twitter's Popover
...anually or use a function. I don't know about PHP but in Rails we use *html_safe*.
Using a JS function:
If you do this, you have several options. The easiest I think is to put your div content hidden wherever you want and then write a function to pass its content to popover. Something like this:
$...
What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
...en elapsed but calculalting the CPU time using the formula CPUtime = #clock_cycles / clock_rate cannot be the same as calculating the elapsed time. Do you know if I can get the elapsed time from the CPU time?
– Bionix1441
Dec 6 '17 at 11:43
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How to work with Git branches and Rails migrations
... so no this isn't a good solution for my case.
– Joel_Blum
Jan 10 '19 at 10:31
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How to get the path of a running JAR file?
...he following: "a" through "z", "A" through "Z", "0" through "9", and "-", "_", ".", and "*". The character "%" is allowed but is interpreted as the start of a special escaped sequence.
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There are two possible ways in which this decoder could deal with illegal strings. It could either le...
How to free memory in Java?
...e (hence the UseG1GC argument above).
VM arguments
Update: For java 1.8.0_73 I have seen the JVM occasionally release small amounts with the default settings. Appears to only do it if ~70% of the heap is unused though.. don't know if it would be more aggressive releasing if the OS was low on physi...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...Hash keys are "simple" symbols (more or less something that matches /\A[a-z_]\w*\z/i, AFAIK the parser uses its label pattern for these keys).
The :$in style symbols show up a fair bit when using MongoDB so you'll end up mixing Hash styles if you use MongoDB. And, if you ever work with specific key...
.war vs .ear file
...Here is a more elaborate explanation: adam-bien.com/roller/abien/entry/ears_wars_and_size_matters
– Kaspars Rinkevics
Jun 28 '17 at 7:41
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Returning an array using C
...ype; the function actually receives a pointer type:
void foo(char *a, size_t asize)
{
// do something with a
}
int bar(void)
{
char str[6] = "Hello";
foo(str, sizeof str);
}
In the call to foo, the expression str is converted from type char [6] to char *, which is why the first parameter o...
How to reduce iOS AVPlayer start delay
...operties and methods provided by the AVAsset class that may help:
- (void)_pu_setCachedDuration:(id)arg1;
- (id)pu_cachedDuration;
- (struct
{
long long x1;
int x2;
unsigned int x3;
long long x4;
})pu_duration;
- (void)pu_loadDurationWithCompletionHandler:(id /* block */)arg1;
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