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How to get a specific output iterating a hash in Ruby?
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Regarding order I should add, that in 1.8 the items will be iterated in random order (well, actually in an order defined by Fixnum's hashing function), while in 1.9 it will be iterated in the order of the literal.
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How do I change an HTML selected option using JavaScript?
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Tools as pure JavaScript code for handling Selectbox:
Graphical Understanding:
Image - A
Image - B
Image - C
Updated - 25-June-2019 | Fiddler DEMO
JavaScript Code:
/**
* Empty Select Box
* @param eid Element ID
* @param value te...
Linux command to list all available commands and aliases
Is there a Linux command that will list all available commands and aliases for this terminal session?
20 Answers
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Ruby on Rails: how to render a string as HTML?
...g raw works fine, but all it's doing is converting the string to a string, and then calling html_safe. When I know I have a string, I prefer calling html_safe directly, because it skips an unnecessary step and makes it clearer what's going on. Details about string-escaping and XSS protection are in ...
Scripting Language vs Programming Language [closed]
Can anyone explain the difference between Scripting Language and Programming Language please?
Also can you state some examples for each. I have Googled a lot but I always find the best answers from Stack Overflow.
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Why is it not possible to extend annotations in Java?
I don't understand why there is no inheritance in Java annotations, just as Java classes. I think it would be very useful.
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How to remove from a map while iterating it?
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The standard associative-container erase idiom:
for (auto it = m.cbegin(); it != m.cend() /* not hoisted */; /* no increment */)
{
if (must_delete)
{
m.erase(it++); // or "it = m.erase(it)" since C++11
}
else
{
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What's the difference between echo, print, and print_r in PHP?
I use echo and print_r much, and almost never use print .
11 Answers
11
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Can you create nested WITH clauses for Common Table Expressions?
...wered Sep 11 '09 at 22:12
David AndresDavid Andres
28.8k77 gold badges4141 silver badges3535 bronze badges
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How to display a specific user's commits in svn log?
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This solution is perfect. I would like to understand what it is doing but I haven't been able to find anything in the sed documentation that explains it. Anyone have any info about why this works?
– Matt Hulse
Jun 4 '12 at 17:38
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