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What does it mean that Javascript is a prototype based language?
...ct-oriented languages are classical.
In classical inheritance, the programmer writes a class, which defines an object. Multiple objects can be instantiated from the same class, so you have code in one place which describes several objects in your program. Classes can then be organized into a hier...
Android ViewPager - Show preview of page on left and right
...n right and left sizes on switch pages of view pager? For example - if fragment out of focus - it's scale will be ~0.8, but when we drag it to center - scale will increase to 1, and previous fragment from centre view will change scale to 0.8 when going out of screen?
– iamthevo...
How to check in Javascript if one element is contained within another
How can I check if one DOM element is a child of another DOM element? Are there any built in methods for this? For example, something like:
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Remove sensitive files and their commits from Git history
...project on GitHub but it contains certain files with sensitive data (usernames and passwords, like /config/deploy.rb for capistrano).
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A Java collection of value pairs? (tuples?)
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The Pair class is one of those "gimme" generics examples that is easy enough to write on your own. For example, off the top of my head:
public class Pair<L,R> {
private final L left;
private final R right;
public Pair(L left, R right) {
asse...
Difference between Property and Field in C# 3.0+
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Why will it be easier? What prevents me from turning a field into a property and add an private backing field? How does this affect calling code?
– Serge Wautier
Mar 17 '09 at 9:45
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How do I update an entity using spring-data-jpa?
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Identity of entities is defined by their primary keys. Since firstname and lastname are not parts of the primary key, you cannot tell JPA to treat Users with the same firstnames and lastnames as equal if they have different userIds.
So, if you want to update a User identified by its firstnam...
Why would $_FILES be empty when uploading files to PHP?
...ed in manually.
Make sure you do not have two input file fields with the same name attribute. If you need to support multiple, put square brackets at the end of the name:
<input type="file" name="files[]">
<input type="file" name="files[]">
Make sure your tmp and upload directories ha...
Using Java 8's Optional with Stream::flatMap
The new Java 8 stream framework and friends make for some very concise java code, but I have come across a seemingly-simple situation that is tricky to do concisely.
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What __init__ and self do on Python?
I'm learning the Python programming language and I've came across something I don't fully understand.
18 Answers
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