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Is Ruby pass by reference or by value?
...variables of the clone still point to the same objects that the originals did. If the objects referenced by the ivars mutate, that will still show up in the copy, since it's referencing the same objects.)
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How to replace captured groups only?
...ing and following text:
str.replace(/(.*name="\w+)(\d+)(\w+".*)/, "$1!NEW_ID!$3")
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Execute stored procedure with an Output parameter?
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I think the answer by Jaider below completes this answer since I myself would be interested in the written command and not the mouse solution.
– Alwyn Schoeman
Dec 6 '17 at 2:30
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Difference between val() and text()
... I clicked the save button. After that action the content in the textarea didnt change anymore. With setting content with .val('content') this problem didnt appear. Couldnt figure out why, but I think it has something to do with DOM cache-ing and different behaviour of these 2 methods.
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Android Spinner: Get the selected item change event
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Some of the previous answers are not correct. They work for other widgets and views, but the documentation for the Spinner widget clearly states:
A spinner does not support item click
events. Calling this method will raise
an exception.
Better use OnItemSelectedListener() instead:...
Rails 4 multiple image or file upload using carrierwave
...ate post_attachment scaffold
rails generate scaffold post_attachment post_id:integer avatar:string
rake db:migrate
In post.rb
class Post < ActiveRecord::Base
has_many :post_attachments
accepts_nested_attributes_for :post_attachments
end
In post_attachment.rb
class PostAttachment <...
Android - Back button in the title bar
...ityForResult(myIntent, 0);
return true;
}
That's it!
(In the Android developers API, it recommends messing around with the manifest and adding stuff like android:parentActivityName. But that doesn't seem to work for me. The above is simpler and more reliable.)
<meta-data
android:...
What's the recommended way to connect to MySQL from Go?
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A few drivers are available but you should only consider those that implement the database/sql API as
it provides a clean and efficient syntax,
it ensures you can later change the driver without changing your code, apart the import and connection.
Two fast and reliable dri...
How to search for a part of a word with ElasticSearch
...nGram just as a filter. Here is my setup:
{
"index": {
"index": "my_idx",
"type": "my_type",
"analysis": {
"index_analyzer": {
"my_index_analyzer": {
"type": "custom",
"tokenizer": "standard",
"filter": [
"lowercase",
...
Using CSS to affect div style inside iframe
Is it possible to change styles of a div that resides inside an iframe on the page using CSS only?
13 Answers
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