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How to find where gem files are installed
...MS VERSION: 2.1.5
- RUBY VERSION: 2.0.0 (2013-06-27 patchlevel 247) [x86_64-darwin12.4.0]
- INSTALLATION DIRECTORY: /Users/ttm/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0
- RUBY EXECUTABLE: /Users/ttm/.rbenv/versions/2.0.0-p247/bin/ruby
- EXECUTABLE DIRECTORY: /Users/ttm/.rbenv/versions/2...
Jquery If radio button is checked
...="radio" id="postageno" name="postage" value="No" />No
JS Fiddle demo.
And, further, a mild update (since I was editing to include Snippets as well as the JS Fiddle links), in order to wrap the <input /> elements with <label>s - allow for clicking the text to update the releva...
How do I detect unsigned integer multiply overflow?
...nting mathematical positive integers, not positive integers mod 2^32 (or 2^64). The distinction between overflow as a deviation from mathematical infinite-sized integer behaviour, and overflow as an undefined behaviour in the language seems rarely to be made explicit.
– Chris J...
Set element focus in angular way
...
This solution is much more 'angular way' than id-based hack above.
– setec
Jul 27 '16 at 14:54
add a comment
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...
SQLAlchemy: print the actual query
...lDialect(),
compile_kwargs={'literal_binds': True},
).string
Demo:
# coding: UTF-8
from datetime import datetime
from decimal import Decimal
from literalquery import literalquery
def test():
from sqlalchemy.sql import table, column, select
mytable = table('mytable', column...
What is the maximum recursion depth in Python, and how to increase it?
...
In my case i forgot the return statement in the base case and it went on to exceed 1000. Python started throwing this exception and i was amazed, because i was sure about the no. of stacks its going to create to run it.
– vijayraj34
M...
List comprehension: Returning two (or more) items for each item
...
Double list comprehension:
[f(x) for x in range(5) for f in (f1,f2)]
Demo:
>>> f1 = lambda x: x
>>> f2 = lambda x: 10*x
>>> [f(x) for x in range(5) for f in (f1,f2)]
[0, 0, 1, 10, 2, 20, 3, 30, 4, 40]
...
How do I get the directory that a program is running from?
...t argc, char* argv[])
{
std::string argv_str(argv[0]);
std::string base = argv_str.substr(0, argv_str.find_last_of("/"));
}
You can now just use this as a base for your relative path. So for example I have this directory structure:
main
----> test
----> src
----> bin
and...
What is the best algorithm for overriding GetHashCode?
...T, the GetHashCode method is used in a lot of places throughout the .NET base class libraries. Implementing it properly is especially important to find items quickly in a collection or when determining equality.
...
convert UIImage to NSData
...{
UIImage *snapshot = self.myImageView.image;
[self encodeImageToBase64String:snapshot];
}
call this method for image convert in base 64
-(NSString *)encodeImageToBase64String:(UIImage *)image
{
return [UIImagePNGRepresentation(image) base64EncodedStringWithOptions:N...