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Making a request to a RESTful API using python
...ave exposed using an implementation of Elasticsearch on an EC2 instance to index a corpus of content. I can query the search by running the following from my terminal (MacOSX):
...
Iterate through a C++ Vector using a 'for' loop
...lain me why in this particular case/code snippet you advise iterators over indexing? What is this "flexibility" you're talking about? Personally, I don't like iterators, they bloat the code - simply more characters to type for the same effect. Especially if you can't use auto.
–...
Count number of occurrences of a given substring in a string
...ing position number among all sub-strings:
s = 'sub1 sub2 sub3'
s.split().index('sub2')
>>> 1
You mean the char-position of the sub-string in the string:
s.find('sub2')
>>> 5
You mean the (non-overlapping) counts of appearance of a su-bstring:
s.count('sub2')
>>> 1
s....
Re-ordering columns in pandas dataframe based on column name [duplicate]
...
df = df.reindex(sorted(df.columns), axis=1)
This assumes that sorting the column names will give the order you want. If your column names won't sort lexicographically (e.g., if you want column Q10.3 to appear after Q9.1), you'll nee...
The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or
...se types of questions:
http://cran.r-project.org/doc/manuals/R-lang.html#Indexing
R has three basic indexing operators, with syntax displayed by the following examples
x[i]
x[i, j]
x[[i]]
x[[i, j]]
x$a
x$"a"
For vectors and matrices the [[ forms are rarely used, alt...
How do I give text or an image a transparent background using CSS?
...und to fit the content and put the background actually in the back using z-index.
.container {
position: relative;
}
.content {
position: relative;
color: White;
z-index: 5;
}
.background {
position: absolute;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
bac...
Retrieve a Fragment from a ViewPager
...ow. If using FragmentStatePagerAdapter its worth looking at this. Grabbing indexes that are not the current one in a FragmentStateAdapter is not as useful as by the nature of it these will be completely torn down went out of view / out of offScreenLimit bounds.
THE UNHAPPY PATHS
Wrong: Maintain yo...
How can I make git ignore future revisions to a file?
...
As many others have mentioned, a good modern solution is:
git update-index --skip-worktree default_values.txt
That will ignore changes to that file, both local and upstream, until you decide to allow them again with:
git update-index --no-skip-worktree default_values.txt
You can get a lis...
Remove sensitive files and their commits from Git history
...double quotes (") instead of singles in this command
git filter-branch --index-filter \
'git update-index --remove PATH-TO-YOUR-FILE-WITH-SENSITIVE-DATA' <introduction-revision-sha1>..HEAD
git push --force --verbose --dry-run
git push --force
Update 2019:
This is the current code from the...
Accessing an array out of bounds gives no error, why?
...esson on arrays and their relationships with pointers:
When you use array indexing, you are really using a pointer in disguise (called a "reference"), that is automatically dereferenced. This is why instead of *(array[1]), array[1] automatically returns the value at that value.
When you have a poi...