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The performance impact of using instanceof in Java
...y "slow" operations, including instanceof, exception handling, reflection, etc.
As Donald Knuth wrote, "We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil." The performance of instanceof probably won't be an issue, so don't waste you...
Best implementation for hashCode method for a collection
...mentations/libraries apply (best practices, well tested, less error prone, etc).
– Kissaki
Jan 28 '14 at 13:23
7
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How do you get the index of the current iteration of a foreach loop?
...aordinary confusion", "completely wrong and confused", "I got 37 upvotes", etc. (I think your ego is a bit on the line here.) Instead, I'd like to politely ask that you not browbeat others with your 'argumentum ad verecundiam' and I'd like to instead encourage you to think of ways to support people ...
Rails extending ActiveRecord::Base
...grouping. For example, a domain grouping is like 'Commentable', 'Taggable' etc. A technical based grouping will be like 'FinderMethods', 'ValidationMethods'.
Here is a link to a post that I found very useful for understanding concerns in Models.
Hope the writeup helps :)
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How to call C from Swift?
...s C libraries. Here is explained how.
Basically, the C types, C pointers, etc are translated into Swift objects, for example a C int in Swift is a CInt.
I've build a tiny example, for another question, which can be used as a little explanation, on how to bridge between C and Swift:
main.swift
im...
How to write a switch statement in Ruby
... else" end results in: "Class!" This works the same for 1.class, {}.class, etc. Dropping .class, we get "String!" or "Something else" for these various values.
– lindes
Apr 11 '19 at 7:14
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For loop for HTMLCollection elements
...ou were iterating it will retrieve the items in the list (indexes 0, 1, 2, etc...), but also will retrieve the length and item properties. The for/in iteration simply won't work for an HTMLCollection.
See http://jsfiddle.net/jfriend00/FzZ2H/ for why you can't iterate an HTMLCollection with for/i...
How to listen for changes to a MongoDB collection?
...? don't use polling - you need an evented approach instead of while loops, etc.
– Alexander Mills
Mar 17 '18 at 4:17
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How to intercept click on link in UITextView?
...
}
2) Wherever you set up your textview, do this:
//init, viewDidLoad, etc
textView.linkDetectDelegate = self
//outlet
@IBOutlet weak var textView: QuickDetectLinkTextView!
//change ClassName to your class
extension ClassName: QuickDetectLinkTextViewDelegate {
func tappedLink() {
p...
How to compare objects by multiple fields
...a itself - i.e. sometimes you want to compare by name, other times by age, etc. To compare by multiple fields at the same time, only one comparator would be necessary.
– Elie
Nov 13 '14 at 17:13
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