大约有 46,000 项符合查询结果（耗时：0.0681秒） [XML]
What is the difference between buffer and cache memory in Linux?
...ed (thus the total page cache size is Cached + SwapCached). Linux performs all file I/O through the page cache. Writes are implemented as simply marking as dirty the corresponding pages in the page cache; the flusher threads then periodically write back to disk any dirty pages. Reads are implemented...
What is the difference between t.belongs_to and t.references in rails?
What is the difference between t.references and t.belongs_to ?
Why are we having those two different words? It seems to me they do the same thing?
Tried some Google search, but find no explanation.
...
More elegant “ps aux | grep -v grep”
...
brilliant hack (I think I should call it that, since the aux / grep authors probably did not think of this scenario.)
– Michael Trouw
Apr 12 '16 at 14:12
...
How to make an empty div take space
...ing a <table> here, though? They will do this kind of stuff automatically.
share
|
improve this answer
|
follow
|
...
Error - trustAnchors parameter must be non-empty
...and what truststore is being used you can add the property javax.net.debug=all and then filter the logs about truststore. You can also play with the property javax.net.ssl.trustStore to specify a specific truststore. For example :
java -Djavax.net.debug=all -Djavax.net.ssl.trustStore=/Another/...
Random / noise functions for GLSL
As the GPU driver vendors don't usually bother to implement noiseX in GLSL, I'm looking for a "graphics randomization swiss army knife" utility function set, preferably optimised to use within GPU shaders. I prefer GLSL, but code any language will do for me, I'm ok with translating it on my own ...
How to get the instance id from within an ec2 instance?
...:\\1:'`"
You may also use curl instead of wget, depending on what is installed on your platform.
share
|
improve this answer
|
follow
|
...
Is there a way to make R beep/play a sound at the end of a script?
...ion sounds in R which should work cross-platform. Run the following to install beepr and make a sound:
install.packages("beepr")
library(beepr)
beep()
More info at github: https://github.com/rasmusab/beepr
share
...
Extract a dplyr tbl column as a vector
...
This seems the most versatile method as it works identically with vectors and data.frames, i.e. it enables functions to be more agnostic.
– geotheory
Mar 14 '17 at 10:03
...
Is there any way to hide “-” (Delete) button while editing UITableView
... equivalent to accepted answer with just the needed funcs:
func tableView(_ tableView: UITableView, shouldIndentWhileEditingRowAt indexPath: IndexPath) -> Bool {
return false
}
func tableView(_ tableView: UITableView, editingStyleForRowAt indexPath: IndexPath) -> UITableViewCellEditingSt...