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Rails: Open link in new tab (with 'link_to')
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The target: :_blank parameter should be a parameter of link_to, whereas you put it in image_tag parameters. Modify your code like this:
<%= link_to image_tag("facebook.png", class: :facebook_icon, alt: "Facebook"), "http://www.facebo...
Fastest way to remove first char in a String
...ring is ever so slightly faster than Remove, in this sample test: 19.37ns vs 22.52ns for Remove. So some ~16% faster.
using System;
using BenchmarkDotNet.Attributes;
namespace BenchmarkFun
{
public class StringSubstringVsRemove
{
public readonly string SampleString = " My name is ...
Cross-thread operation not valid: Control 'textBox1' accessed from a thread other than the thread it
...se a dispatcher as descibed in the MSDN article:
How to: Make Thread-Safe Calls to Windows Forms Controls
So instead of setting the text property directly in the serialport1_DataReceived method, use this pattern:
delegate void SetTextCallback(string text);
private void SetText(string text)
{
// I...
Add a new item to a dictionary in Python [duplicate]
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default_data['item3'] = 3
Easy as py.
Another possible solution:
default_data.update({'item3': 3})
which is nice if you want to insert multiple items at once.
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How do I get a list of all the duplicate items using pandas in python?
...rt issues. I would like to get a list of the duplicate items so I can manually compare them. When I try to use pandas duplicated method , it only returns the first duplicate. Is there a a way to get all of the duplicates and not just the first one?
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How to use JavaScript source maps (.map files)?
...ow I can feel confident using it. Most gulp plugins are compatible now too vs a year ago when some were not. Just wanted to say it makes total sense!
– Eric Bishard
Aug 15 '15 at 16:05
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How are POST and GET variables handled in Python?
... self.response.write(name) # this will write on the document
So you really will have to choose one of those frameworks.
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In Python how should I test if a variable is None, True or False
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a = 'foo' if a: print 'its true' a is not actually TRUE, it's just not none
– wesm
Apr 3 '15 at 21:06
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pandas GroupBy columns with NaN (missing) values
...n the Missing Data section of the docs:
NA groups in GroupBy are automatically excluded. This behavior is consistent with R, for example.
One workaround is to use a placeholder before doing the groupby (e.g. -1):
In [11]: df.fillna(-1)
Out[11]:
a b
0 1 4
1 2 -1
2 3 6
In [12]: df.fil...
How does node.bcrypt.js compare hashed and plaintext passwords without the salt?
...in user in data base like this: column_password = hash, column_salt = salt vs column_password = hash_salt. attacker still has same information. Point of salt is to make every password so random and bigger that it becomes unlikely someone has precomputed it.
– Muhammad Umer
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