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How do I change the color of radio buttons?
...This method will now disable and remove the input field from the submitted form data. It is in response to abuse by companies that placed checkboxes out of sight, that declared their users agreed to permission and regulations the visitors could not evaluate before proceeding. If the literal button i...
How can I programmatically get the MAC address of an iphone
...s();
GetIPAddresses();
GetHWAddresses();
int i;
NSString *deviceIP = nil;
for (i=0; i<MAXADDRS; ++i)
{
static unsigned long localHost = 0x7F000001; // 127.0.0.1
unsigned long theAddr;
theAddr = ip_addrs[i];
if (theAddr == 0) break;
if (theAddr == localHost) continue;...
Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
...t changing the elements that need to be changed. That's important to avoid for large data, and why := and set() were introduced to data.table.
Now, with our copied newDT we can modify it by reference :
newDT
# a b
# [1,] 1 11
# [2,] 2 200
newDT[2, b := 400]
# a b # See FAQ 2...
How to extract numbers from a string and get an array of ints?
...
This method detects digits but does not detect formated numbers, e.g. 2,000. For such use -?\\d+,?\\d+|-?\\d+
– Mugoma J. Okomba
Mar 9 '16 at 12:25
...
What is the difference between ~> and >= when specifying rubygem in Gemfile?
... preceding it in the string cannot be greater than what you provided. Thus for ~>0.8.5, any value is acceptable for the third digit (the 5) provided that it is greater than or equal to 5, but the leading 0.8 must be "0.8".
You might do this, for example, if you think that the 0.9 version is goin...
Recommendation for compressing JPG files with ImageMagick
...l.
Source link: http://www.yuiblog.com/blog/2008/12/05/imageopt-4/
From @Fordi in the comments (don't forget to thumbs up his comment if you like):
If you dislike blurring, use -sampling-factor 4:2:0 instead. What this does is reduce the chroma channel's resolution to half, without messing with th...
grant remote access of MySQL database from any IP address
...
You have to use "flush privileges;" for the changes to take effect
– Didier Sampaolo
Nov 19 '15 at 6:01
...
0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
...ak ... or not... depends if the language implements IEEE 754, in which platform it is run...
– woliveirajr
Oct 10 '13 at 12:29
2
...
Rename Pandas DataFrame Index
...
The rename method takes a dictionary for the index which applies to index values.
You want to rename to index level's name:
df.index.names = ['Date']
A good way to think about this is that columns and index are the same type of object (Index or MultiIndex), a...
Maven project version inheritance - do I have to specify the parent version?
...
EDIT: Since Maven 3.5.0 there is a nice solution for this using ${revision} placeholder. See FrVaBe's answer for details. For previous Maven versions see my original answer below.
No, there isn't. You always have to specify parent's version. Fortunately, it is inherited ...