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How can you sort an array without mutating the original array?
...nst sorted = [...arr].sort();
the spread-syntax as array literal (copied from mdn):
var arr = [1, 2, 3];
var arr2 = [...arr]; // like arr.slice()
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator
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Android: show soft keyboard automatically when focus is on an EditText
...ner on the EditText on the AlertDialog, then get the AlertDialog's Window. From there you can make the soft keyboard show by calling setSoftInputMode.
final AlertDialog dialog = ...;
editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(Vi...
Why an interface can not implement another interface?
...mplementation if you wish (in this case it won't remain 100% abstract), so from the JVM's perspective they are different things.
Also the member variable in a 100% abstract class can have any access qualifier, where in an interface they are implicitly public static final.
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Using Panel or PlaceHolder
...g a Panel control's content to display text for languages that are written from right to left, such as Arabic or Hebrew.
The Panel control provides several properties that allow you to customize the behavior and display of its contents. Use the BackImageUrl property to display a custom image for the...
Preloading images with jQuery
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From my experience, preloading an image into the DOM makes the browser aware of its existence and for it to be properly cached. Otherwise, the image only exists in memory which only works for single page apps.
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How to set default browser window size in Protractor/WebdriverJS
...hes a new Chrome
session. This can be done by removing 'debuggerAddress' from the
Capabilities object.
Source: https://sites.google.com/a/chromium.org/chromedriver/help/operation-not-supported-when-using-remote-debugging
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How to get and set the current web page scroll position?
... thanks, I found this: articles.sitepoint.com/article/javascript-from-scratch/6 and modified the getScrollingPosition() to store the values in hidden variables. Then in the html of the refreshed page I use <body onLoad="window.scrollTo(x,y), where x and y are those from the hidden value...
Can you write nested functions in JavaScript?
...b(y) { // <-- inner function
return x + y; // <-- use variables from outer scope
}
return b; // <-- you can even return a function.
}
console.log(a(3)(4));
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Linux - Replacing spaces in the file names
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Note: This is run from WITHIN the directory whose files' names you want to update. Alternatively, you can change * to PATH_TO_YOUR_DIRECTORY.
– CFitz
Mar 8 '19 at 20:06
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BigDecimal setScale and round
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See: "precision": The digit count starts from the leftmost nonzero digit of the exact result. docs.oracle.com/javase/7/docs/api/java/math/BigDecimal.html
– Eddy
Sep 6 '16 at 7:06
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