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MongoDB relationships: embed or reference?
... records will refer to the same data it is more efficient and less error prone to update a single record and keep references to it in other places.
Document size considerations
MongoDB imposes a 4MB (16MB with 1.8) size limit on a single document. In a world of GB of data this sounds small, but it...
Get cookie by name
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One approach, which avoids iterating over an array, would be:
function getCookie(name) {
const value = `; ${document.cookie}`;
const parts = value.split(`; ${name}=`);
if (parts.length === 2) return parts.pop().split(...
What is the difference between typeof and instanceof and when should one be used vs. the other?
.../object
{} instanceof Object; // true
typeof {}; // object
And the last one is a little bit tricky:
typeof null; // object
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React.js: Wrapping one component into another
...ld" statements, that allow to do some sort of inversion of control to wrap one template inside of another.
3 Answers
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Java ArrayList copy
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List<Integer> newList = new ArrayList<>(oldList);
(Just as one example.)
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How to exit a 'git status' list in a terminal?
...id ask for me to type yes or no. I pressed q, esc and many other keys and none of them worked until I can across CTRL + C and it got me out of it!
– Mohammed Mishal
May 7 at 22:12
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Why is there no xrange function in Python3?
... the OP's xrange function has nothing to do with it. (Not surprising, as a one-time call to the __iter__ slot isn't likely to be visible among 10000000 calls to whatever happens in the loop, but someone brought it up as a possibility.)
But it's only 30% slower. How did the OP get 2x as slow? Well, ...
How to enable NSZombie in Xcode?
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In Xcode, in the Help menu at the top (last one on the right) search for "Edit Scheme" it will point you in the right direction every time in any version.
– unom
Mar 3 '14 at 21:16
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What is Gradle in Android Studio?
...e is a bit confusing to me, and also for any new Android developer. Can anyone explain what Gradle in Android Studio is and what its purpose is? Why is it included in Android Studio?
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Add column with constant value to pandas dataframe [duplicate]
.... In general, pandas tries to do as much alignment of indices as possible. One downside is that when indices are not aligned you get NaN wherever they aren't aligned. Play around with the reindex and align methods to gain some intuition for alignment works with objects that have partially, totally, ...