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How to check if a variable is null or empty string or all whitespace in JavaScript?
... instead of just ignoring it when performing the check.
Reference: http://api.jquery.com/jQuery.trim/
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How do I install the yaml package for Python?
...work, we find that pip only returns the first 100 results, due to the PyPI api. But that is an explanation for the problem, not a method to solve the issue of selecting an appropriate package sadly. Would be v happy for suggestions of what to incorporate in the answer
– Bonle...
Java 256-bit AES Password-Based Encryption
...(ciphertext), "UTF-8");
System.out.println(plaintext);
Java 7 included API support for AEAD cipher modes, and the "SunJCE" provider included with OpenJDK and Oracle distributions implements these beginning with Java 8. One of these modes is strongly recommended in place of CBC; it will protect t...
How can “while (i == i) ;” be a non-infinite loop in a single threaded application?
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double i = Double.NaN;
The API for Double.equals() spells out the answer: "Double.NaN==Double.NaN has the value false". This is elaborated in the Java Language Specification under "Floating-Point Types, Formats, and Values":
NaN is unordered, so th...
Why is access to the path denied?
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Thank you! This indirectly solved an issue where an API was expecting a destination which I gave as the directory, not realizing it had to include the filename (since the object itself has an associated filename).
– Austin Salgat
Oct 5 '1...
How to call multiple JavaScript functions in onclick event?
...ritten, or overwrite your code. read: developer.mozilla.org/en-US/docs/Web/API/Event
– gcb
Aug 7 '14 at 22:31
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Check/Uncheck checkbox with JavaScript (jQuery or vanilla)?
... about the click method here:
https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/click
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How to delete an object by id with entity framework
...emove operation can be performed. See here docs.microsoft.com/en-us/dotnet/api/…
– dwkd
Jan 28 '19 at 23:51
1
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Node.js - getting current filename
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Node.js provides a standard API to do so: Path.
Getting the name of the current script is then easy:
var path = require('path');
var scriptName = path.basename(__filename);
s...
Prevent a webpage from navigating away using JavaScript
...in a more modern and browser compatible way, using modern addEventListener APIs.
window.addEventListener('beforeunload', (event) => {
// Cancel the event as stated by the standard.
event.preventDefault();
// Chrome requires returnValue to be set.
event.returnValue = '';
});
Source: htt...