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How to remove a key from Hash and get the remaining hash in Ruby/Rails?
... { a: true, b: false, c: nil}
#
# This is useful for limiting a set of parameters to everything but a few known toggles:
# @person.update(params[:person].except(:admin))
def except(*keys)
dup.except!(*keys)
end
# Replaces the hash without the given keys.
# hash = { a: true, b:...
How can I pad a value with leading zeros?
...nd the -6,6 correspond to the pad width. Same idea but slice take one less param; not sure if slice is faster or slower than subtr. Of course my solution isn't needing variable assignment.
– slartibartfast
Mar 4 '14 at 7:41
...
How would you implement an LRU cache in Java?
...* <code>LinkedHashMap</code>.
* </p>
*
* @param eldest
* the <code>Entry</code> in question; this implementation doesn't care what it is, since the
* implementation is only dependent on the size of the cache
* @return ...
Is it possible to pass a flag to Gulp to have it run tasks in different ways?
...ble anymore): https://github.com/gulpjs/gulp/blob/master/docs/recipes/pass-params-from-cli.md
Alternative with minimist
From Updated Ref: https://github.com/gulpjs/gulp/blob/master/docs/recipes/pass-arguments-from-cli.md
gulpfile.js
// npm install --save-dev gulp gulp-if gulp-uglify minimist
...
Converting Secret Key into a String and Vice Versa
...
public static SecretKey generateAESKey(int keysize)
throws InvalidParameterException {
try {
if (Cipher.getMaxAllowedKeyLength("AES") < keysize) {
// this may be an issue if unlimited crypto is not installed
throw new InvalidParameterException("Key siz...
c# open file with default application and parameters
... file type e.g. '.pdf' in the registry, then put that name in the filename parameter. See stackoverflow.com/questions/162331/…
– Surfbutler
Jul 6 '12 at 16:38
...
What is the HMVC pattern?
...in HTML format. So you send a request to the comments Controller with some params, it interacts with the Model, picks a View, and the View displays the content. The only difference is you want the comments displayed inline, below the blog article the user is viewing instead of a completely separate ...
More than 10 lines in a node.js stack error?
...
You can pass stack trace limit as a command line param to node:
node --stack-trace-limit=1000 debug.js // default 10
BTW, another thing which sounds unlikely to happen, but just wasted a few hours of my time for debugging, is the stack size (which defaults to 492 kB). You...
Why is Java's AbstractList's removeRange() method protected?
...I quote it here:
There are three techniques for shortening overly long parameter lists. One is to break the method up into multiple methods, each of which requires only a subset of the parameters. If done carelessly, this can lead to too many methods, but it can also help reduce the method count...
Tablet or Phone - Android
... on this post.
/**
* Checks if the device is a tablet or a phone
*
* @param activityContext
* The Activity Context.
* @return Returns true if the device is a Tablet
*/
public static boolean isTabletDevice(Context activityContext) {
// Verifies if the Generalized Size of the de...