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Find a pair of elements from an array whose sum equals a given number
Given array of n integers and given a number X, find all the unique pairs of elements (a,b), whose summation is equal to X.
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Making the main scrollbar always visible
...tical;
overflow-y: scroll;
}
This make the scrollbar always visible and only active when needed.
Update: If the above does not work the just using this may.
html {
overflow-y:scroll;
}
share
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Semantic Issue: Property's synthesized getter follows Cocoa naming convention for returning 'owned'
...5 SDK trying to develop my app.
I'm trying to make an NSString a property, and then to synthesize it in the .m file (I have done this before with no issues). Now, I came across this: "Semantic Issue: Property's synthesized getter follows Cocoa naming convention for returning 'owned' objects."
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Using context in a fragment
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I was reading this Google blog on memory leaks...android-developers.blogspot.com/2009/01/… . If I use the getActivity() method would the app not be at risk of memory leaks? The blog suggests "Try using the context-application instead of a context-activity" which isn't rea...
How to change Status Bar text color in iOS
...redStatusBarStyle: UIStatusBarStyle {
return .lightContent
}
Swift 5 and SwiftUI
For SwiftUI create a new swift file called HostingController.swift
import Foundation
import UIKit
import SwiftUI
class HostingController: UIHostingController<ContentView> {
override var preferredStatu...
Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the La
...blem has been bugging me again.
The simple truth is, atob doesn't really handle UTF8-strings - it's ASCII only.
Also, I wouldn't use bloatware like js-base64.
But webtoolkit does have a small, nice and very maintainable implementation:
/**
*
* Base64 encode / decode
* http://www.webtoolkit.inf...
Serializing PHP object to JSON
So I was wandering around php.net for information about serializing PHP objects to JSON, when I stumbled across the new JsonSerializable Interface . It's only PHP >= 5.4 though, and I'm running in a 5.3.x environment.
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How to create a zip archive of a directory in Python?
...n
import os
import zipfile
def zipdir(path, ziph):
# ziph is zipfile handle
for root, dirs, files in os.walk(path):
for file in files:
ziph.write(os.path.join(root, file))
if __name__ == '__main__':
zipf = zipfile.ZipFile('Python.zip', 'w', zipfile.ZIP_DEFLATED)
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How to execute file I'm editing in Vi(m)
How to execute file that I'm editing in Vi(m) and get output in split window (like in SciTE)?
13 Answers
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How to make --no-ri --no-rdoc the default for gem install?
... or RDoc output from the gems I install in my machine or in the servers I handle (I use other means of documentation).
12 A...