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Query for documents where array size is greater than 1
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There's a more efficient way to do this in MongoDB 2.2+ now that you can use numeric array indexes in query object keys.
// Find all docs that have at least two name array elements.
db.accommodations.find({'name.1': {$exists: true}})
You can support this query with an index tha...
Laravel Eloquent: Ordering results of all()
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I'm interested in knowing how this works behind the scenes. It strikes me as though sorting the collection with sortBy() happens inside the Laravel Engine (in PHP), while the orderBy() is done in the database. Surely the database is going to be...
Close virtual keyboard on button press
...ou should also fire keyboard hiding in your button using onClickListener
Now clicking 'Done' on virtual keyboard and button will do the same - hide keyboard and perform click action.
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impro...
Javascript Array.sort implementation?
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I believe V8 is now using TimSort: github.com/v8/v8/blob/78f2610345fdd14ca401d920c140f8f461b631d1/…
– celwell
Jan 1 '19 at 1:18
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Writing a new line to file in PHP (line feed)
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now my code uses both " and ' and it bothers me
– Mr PizzaGuy
Jan 12 at 16:59
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How to get the browser language using JavaScript [duplicate]
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Update: There is now (2020) an experimental feature supported by all modern browsers that returns an array of language preference: navigator.languages //["en-US", "zh-CN", "ja-JP"] This should work on at least 95% of browsers in 2020.
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How to check postgres user and password? [closed]
A friend of mine done this config on my mac. But I don't know the username and password he had chosen.
2 Answers
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How to copy JavaScript object to new variable NOT by reference? [duplicate]
...ATE 2017: I should mention, since this is a popular answer, that there are now better ways to achieve this using newer versions of javascript:
In ES6 or TypeScript (2.1+):
var shallowCopy = { ...oldObject };
var shallowCopyWithExtraProp = { ...oldObject, extraProp: "abc" };
Note that if extraPr...
Telnet is not recognized as internal or external command [closed]
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You can try using Putty (freeware). It is mainly known as a SSH client, but you can use for Telnet login as well
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使用位置传感器 · App Inventor 2 中文网
...any received text by sending back a text that says, “I’m driving right now, I’ll get back to you later. My location is …” with the current location filled in.
Write a “breadcrumb” app that tracks your (phone’s) whereabouts by recording each location change. One interesting refineme...