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Java: How to get input from System.console()
...tring from the console/keyboard by using Java.
public class ConsoleReadingDemo {
public static void main(String[] args) {
// ====
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Please enter user name : ");
String username = null;
...
How to ignore xargs commands if stdin input is empty?
...SunOS sun4v
$ xargs -n1 echo blah < /dev/null
$ uname -is
Linux x86_64
$ xargs --version | head -1
xargs (GNU findutils) 4.7.0-git
$ xargs -n1 echo blah < /dev/null
blah
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count the frequency that a value occurs in a dataframe column
...columns you can use:
df.apply(pd.value_counts)
This will apply a column based aggregation function (in this case value_counts) to each of the columns.
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How to scroll HTML page to given anchor?
...ement is at the top of the view
behavior: 'smooth' // smooth scroll
})
Demonstration example on Codepen
If you want the element to be in the center:
const element = document.querySelector('#element')
const rect = element.getBoundingClientRect() // get rects(width, height, top, etc)
const vie...
How to reformat JSON in Notepad++?
...
A 64-bit version can be downloaded directly from here: notepad-plus-plus.org/community/topic/13064/…
– brentlightsey
Aug 14 '17 at 21:20
...
Efficiently replace all accented characters in a string?
...
Here is a more complete version based on the Unicode standard, taken from here: http://semplicewebsites.com/removing-accents-javascript
var Latinise={};Latinise.latin_map={"Á":"A",
"Ă":"A",
"Ắ":"A",
"Ặ":"A",
"Ằ":"A",
"Ẳ":"A",
"Ẵ":"A",
"Ǎ":"A",...
How can I make Flexbox children 100% height of their parent?
...rther information on fixing the resize issue.
Also see this jsFiddle for a demo, although I have only added WebKit prefixes so open in Chrome.
You basically have two issues which I will deal with separately.
Getting the child of a flex-item to fill height 100%
Set position: relative; on the paren...
How to use background thread in swift?
... background?()
let popTime = dispatch_time(DISPATCH_TIME_NOW, Int64(delay * Double(NSEC_PER_SEC)))
dispatch_after(popTime, dispatch_get_main_queue()) {
completion?()
}
}
}
Note: in Swift 2.0, replace QOS_CLASS_USER_INITIATED.value above with QOS_CLASS_USER...
Drawing text to with @font-face does not work at the first time
...
Use this trick and bind an onerror event to an Image element.
Demo here: works on the latest Chrome.
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
var link = document.createElement('link');
link.rel = 'stylesheet';
link.type = 'text/css';
link.hre...
CSS content property: is it possible to insert HTML instead of Text?
...mber that some earlier UA had a bug and made it relative to the document's baseURI. So the securest way is just to use absolute path.
– Kaiido
Jun 1 '16 at 13:40
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