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How to Update Multiple Array Elements in mongodb
...esired action.
Also see Updating a Nested Array with MongoDB for how these new positional operators apply to "nested" array structures, where "arrays are within other arrays".
IMPORTANT - Upgraded installations from previous versions "may" have not enabled MongoDB features, which can also cause sta...
Rails mapping array of hashes onto single hash
...(which you may not want) but will not create an intermediary hash for each new merge.
– Phrogz
Jan 31 '16 at 21:41
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show 1 more comment
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Regex replace uppercase with lowercase letters
...ew other examples:
Capitalize words
Find: (\s)([a-z]) (\s also matches new lines, i.e. "venuS" => "VenuS")
Replace: $1\u$2
Uncapitalize words
Find: (\s)([A-Z])
Replace: $1\l$2
Remove camel case (e.g. cAmelCAse => camelcAse => camelcase)
Find: ([a-z])([A-Z])
Replace: $1\l$2
Lowerc...
Naming returned columns in Pandas aggregate function? [duplicate]
... level, you can use the ravel() function on the multi-level column to form new labels:
df.columns = ["_".join(x) for x in df.columns.ravel()]
For example:
import pandas as pd
import pandas.rpy.common as com
import numpy as np
data = com.load_data('Loblolly')
print(data.head())
# height a...
prevent refresh of page when button inside form clicked
I have an issue while using buttons inside form. I want that button to call function. It does, but with unwanted result that it refresh the page.
...
Make outer div be automatically the same height as its floating content
...I dont want to use style='height: 200px in the div with the outerdiv id as I want it to be automatically the height of its content (eg, the floating div s).
...
Parallel.ForEach() vs. foreach(IEnumerable.AsParallel())
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f3789998%2fparallel-foreach-vs-foreachienumerablet-asparallel%23new-answer', 'question_page');
}
);
...
Rendering HTML inside textarea
...;/i>
</div>
</foreignObject>
</svg>`;
var blob = new Blob( [data], {type:'image/svg+xml'} );
var url=URL.createObjectURL(blob);
inp.style.backgroundImage="url("+URL.createObjectURL(blob)+")";
}
onload=function(){
render();
ro = new ResizeObserver(render);
ro...
What is the difference between . (dot) and $ (dollar sign)?
...p avoid parentheses. (.) is for composing two functions together to make a new function.
In some cases they are interchangeable, but this is not true in general. The typical example where they are is:
f $ g $ h $ x
==>
f . g . h $ x
In other words in a chain of $s, all but the final one ca...
Differences between SP initiated SSO and IDP initiated SSO
...ne explain to me what the main differences between SP initiated SSO and IDP initiated SSO are, including which would be the better solution for implementing single sign on in conjunction with ADFS + OpenAM Federation?
...