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How to prevent ifelse() from turning Date objects into numeric objects
... to manipulate a date vector. I expected the result to be of class Date , and was surprised to get a numeric vector instead. Here is an example:
...
How to get ASCII value of string in C#
...s—including throwing an exception—are available in the Encoding class. And, of course, other character encodings—especially UTF-8—are available, too; One should question whether it is ASCII that is actually wanted.
– Tom Blodget
Jan 11 '19 at 17:53
...
Retrieve database or any other file from the Internal Storage using run-as
On a non-rooted android device, I can navigate to the data folder containing the database using the run-as command with my package name. Most files types I am content with just viewing, but with the database I would like to pull if from the android device.
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Center a popup window on screen?
...: It will also work on windows that aren't maxed out to the screen's width and height now thanks to @Frost!
If you're on dual monitor, the window will center horizontally, but not vertically... use this function to account for that.
const popupCenter = ({url, title, w, h}) => {
// Fixes dua...
How can I get the diff between all the commits that occurred between two dates with Git?
... just for someone who stumbles upon this (as I did) Git help says: The command is kept primarily for historical reasons; fingers of many people who learned Git long before git log was invented by reading Linux kernel mailing list are trained to type it. So, the docs encourages using git log instead...
Difference between .on('click') vs .click()
...s.
I would prefer .on over .click because the former can use less memory and work for dynamically added elements.
Consider the following html:
<html>
<button id="add">Add new</button>
<div id="container">
<button class="alert">alert!</button>
...
What is the difference between single and double quotes in SQL?
What is the difference between single quotes and double quotes in SQL?
6 Answers
6
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How to check if an app is installed from a web-page on an iPhone?
...pp is installed or not.
But you can try redirecting the phone to the app, and if nothing happens redirect the phone to a specified page, like this:
setTimeout(function () { window.location = "https://itunes.apple.com/appdir"; }, 25);
window.location = "appname://";
If the second line of code giv...
When does a process get SIGABRT (signal 6)?
...ll free() on a non-initialized/corrupted pointer
– grandrew
Jan 17 '16 at 12:22
If I have somewhere in the code, burie...
Custom exception type
...sfated posted above with the enhancement that stack traces work on Firefox and other browsers. It satisfies the same tests that he posted:
Usage:
throw new InvalidArgumentException();
var err = new InvalidArgumentException("Not yet...");
And it will behave is expected:
err instanceof InvalidAr...