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How to Correctly handle Weak Self in Swift Blocks with Arguments
...://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/AutomaticReferenceCounting.html
Note: I used the term closure instead of block which is the newer Swift term:
Difference between block (Objective C) and closure (Swift) in ios
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Java : How to determine the correct charset encoding of a stream
... {
return CharsetToolkit.guessEncoding(file, 4096, StandardCharsets.UTF_8);
}
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How can I run MongoDB as a Windows service?
...r several hours, I finally did it.
Make sure that you added the <MONGODB_PATH>\bin directory to the system variable PATH
First I executed this command:
D:\mongodb\bin>mongod --remove
Then I executed this command after opening command prompt as administrator:
D:\mongodb\bin>mongod --dbpa...
Why can I throw null in Java? [duplicate]
...ointerException and not a FileNotFoundException
– php_coder_3809625
Aug 24 '16 at 5:50
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Convert InputStream to BufferedReader
...ader br = new BufferedReader(new InputStreamReader(is, StandardCharsets.UTF_8)); added in Java 7
– brcolow
Mar 19 '15 at 21:51
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How to format a number as percentage in R?
...s pointed out by @DzimitryM, percent() has been "retired" in favor of label_percent(), which is a synonym for the old percent_format() function.
label_percent() returns a function, so to use it, you need an extra pair of parentheses.
library(scales)
x <- c(-1, 0, 0.1, 0.555555, 1, 100)
label_pe...
How to programmatically create and read WEP/EAP WiFi configurations in Android?
...Context.WIFI_SERVICE);
List<WifiConfiguration> item = wifi.getConfiguredNetworks();
int i = item.size();
Log.d("WifiPreference", "NO OF CONFIG " + i );
Iterator<WifiConfiguration> iter = item.iterator();
WifiConfiguration config = item.get(0);
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Assign variables to child template in {% include %} tag Django
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Like @Besnik suggested, it's pretty simple:
{% include "subject_file_upload.html" with form=form foo=bar %}
The documentation for include mentions this. It also mentions that you can use only to render the template with the given variables only, without inheriting any other variables.
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How to automatically reload a page after a given period of inactivity
...u want to refresh the page
// bassed off the user inactivity.
var refresh_rate = 200; //<-- In seconds, change to your needs
var last_user_action = 0;
var has_focus = false;
var lost_focus_count = 0;
// If the user loses focus on the browser to many times
// we want to refresh anyway even if t...
How to check if a string starts with a specified string? [duplicate]
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Use the substr function to return a part of a string.
substr( $string_n, 0, 4 ) === "http"
If you're trying to make sure it's not another protocol. I'd use http:// instead, since https would also match, and other things such as http-protocol.com.
substr( $string_n, 0, 7 ) === "http://"
An...