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Cache Invalidation — Is there a General Solution?
...ated from (you already stored this in whatever data structure was returned by getData(), so you just copy that record into the data structure returned by transformData()) and then when you call transformData() again, check the last modified time of the file.
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How to reload .bash_profile from the command line?
I can get the shell to recognize changes to .bash_profile by exiting and logging back in but I would like to be able to do it on demand.
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How to get row from R data.frame
...,]==y
#> A B C
#> 1 TRUE TRUE TRUE
Created on 2020-08-06 by the reprex package (v0.3.0)
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Different ways of adding to Dictionary
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The performance is almost a 100% identical. You can check this out by opening the class in Reflector.net
This is the This indexer:
public TValue this[TKey key]
{
get
{
int index = this.FindEntry(key);
if (index >= 0)
{
return this.entries[inde...
Testing if jQueryUI has loaded
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You can check if jQuery UI is loaded or not by many ways such as:
if (typeof jQuery.ui == 'undefined') {
// jQuery UI IS NOT loaded, do stuff here.
}
OR
if (typeof jQuery.ui != 'function') {
// jQuery UI IS NOT loaded, do stuff here.
}
OR
if (jQuery.ui) {...
What does set -e mean in a bash script?
...a command exits with a non-zero status.
But it's considered bad practice by some (bash FAQ and irc freenode #bash FAQ authors). It's recommended to use:
trap 'do_something' ERR
to run do_something function when errors occur.
See http://mywiki.wooledge.org/BashFAQ/105
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How to add a WiX custom action that happens only on uninstall (via MSI)?
...nfirm: Installed and INSTALLED are different things, only Installed is set by Windows Installer. I do not think that INSTALLED works.
– Micha Wiedenmann
Sep 2 '16 at 13:23
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Search for selection in vim
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You cannot by default unless you put into vimrc the mapping from the page..
– Ayrat
Oct 26 '16 at 6:39
add a co...
Force Screen On
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This Question has Already Great Answer by @hackbod !
I am Answering this Question with Two Additional Solutions !
Existing Solution :
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
getWindow().addFlags(Window...
Difference between /res and /assets directories
...s changes in the development cycle.) (EDIT: you can retrieve a resource ID by name using getIdentifier, but this loses the benefits of compile-time checking.) Assets can also be organized into a folder hierarchy, which is not supported by resources. It's a different way of managing data. Although re...