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How to get the caret column (not pixels) position in a textarea, in characters, from the start?
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Difference between HashSet and HashMap?
...as others have pointed out. What they are, respectively, are a Set - an unordered collection - and a Map - a collection with keyed access. They happen to be implemented with hashes - that's where the names come from - but their essence is hidden behind that part of their names.
Don't be confused ...
How to paginate with Mongoose in Node.js?
...mongodb, but to answer Lex's question, it appears that, as the results are ordered by '-createdOn', you would replace the value of request.createdOnBefore with the least value of createdOn returned in the previous result set, and then requery.
– Terry Lewis
Aug...
Quickest way to compare two generic lists for differences
...ow up in the first list but not in the second". There's no indication that ordering is relevant, whereas SequenceEqual does consider it to be relevant. This appears to be answering an entirely different question.
– Jon Skeet
Sep 5 '19 at 9:44
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How do you represent a JSON array of strings?
...inted.
Here are a few extra valid JSON examples, one per block:
{}
[0]
{"__comment": "json doesn't accept comments and you should not be commenting even in this way", "avoid!": "also, never add more than one key per line, like this"}
[{ "why":null} ]
{
"not true": [0, false],
"true": true,...
Class.forName() vs ClassLoader.loadClass() - which to use for dynamic loading? [duplicate]
...oadClass("..."); on a Class type to attempt to load a Torque peer class in order to run a static initializer block which maps the peer to a database table. The static block was not executed on this call. However, upon calling Class.forName("..."); for the peer class the static block was executed. +1...
How to use SCNetworkReachability in Swift
...ion
func connectedToNetwork() -> Bool {
var zeroAddress = sockaddr_in()
zeroAddress.sin_len = UInt8(sizeofValue(zeroAddress))
zeroAddress.sin_family = sa_family_t(AF_INET)
guard let defaultRouteReachability = withUnsafePointer(&zeroAddress, {
SCNetworkReachabilityCr...
How can I create a two dimensional array in JavaScript?
...o run .map. Remember that Array will not allocate the positions until you order it to through .fill or direct value assignment.
var arr = Array(2).fill(null).map(() => Array(4));
arr[0][0] = 'foo';
console.info(arr);
Follow up
Here's a method that appears correct, but has issues...
Android WebView: handling orientation changes
...w that "this method no longer stores the display data for this WebView" in order to prevent a WebView form reloading?
– Lucas P.
Oct 7 '19 at 13:18
add a comment
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How to calculate percentage with a SQL statement
...r() worked perfectly on my SQL Server 2008, I did the math to confirm. In order to round it off to 2 decimal places I used CAST(count() * 100.0 / sum(count()) over() AS DECIMAL(18, 2)). Thanks for the post!
– RJB
May 8 '13 at 18:19
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