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Rails Observer Alternatives for 4.0
...Other than using the extracted gem.) While Observers were certainly abused and could easily become unwieldily at times, there were many use-cases outside of just cache-clearing where they were beneficial.
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Android “Only the original thread that created a view hierarchy can touch its views.”
I've built a simple music player in Android. The view for each song contains a SeekBar, implemented like this:
27 Answers
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Loading local JSON file
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I recommend to use myjson.com to upload your local file and access it from chrome browser.
– Chemical Programmer
Jan 2 '17 at 12:17
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?? Coalesce for empty string?
Something I find myself doing more and more is checking a string for empty (as in "" or null) and a conditional operator.
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Scroll Automatically to the Bottom of the Page
...ight not scroll. In this case, you need to target the element that scrolls and use it's scroll height instead.
window.scrollTo(0,document.querySelector(".scrollingContainer").scrollHeight);
You can tie that to the onclick event of your question (i.e. <div onclick="ScrollToBottom()" ...).
Som...
Sublime Text 3, convert spaces to tabs
...for coding. Is there a way, to convert always spaces to tabs? I.e. on open and on Save files? Anyone got an idea?
11 Answer...
How do I clone a github project to run locally?
I am trying to follow this railscast tutorial for authlogic - and it points to the source here -
4 Answers
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How do I check if a string contains another string in Swift?
...String is a collection of Character values, it wasn't like this in Swift 2 and 3, so you can use this more concise code1:
let string = "hello Swift"
if string.contains("Swift") {
print("exists")
}
Swift 3.0+
var string = "hello Swift"
if string.range(of:"Swift") != nil {
print("exists"...
How to resolve “must be an instance of string, string given” prior to PHP 7?
...Prior to PHP 7 type hinting can only be used to force the types of objects and arrays. Scalar types are not type-hintable. In this case an object of the class string is expected, but you're giving it a (scalar) string. The error message may be funny, but it's not supposed to work to begin with. Give...
How to differentiate between time to live and time to idle in ehcache
...ld 1.1 documentation (available in Google Cache, which is easier to browse and more informative than the current docs AFAIK):
timeToIdleSeconds
This is an optional attribute.
Legal values are integers between 0 and Integer.MAX_VALUE.
It is the number of seconds that an Element sho...