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How to validate an email address in JavaScript
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Watch out, this is invalid: re.test("username+something@gmail.com")
– adriaan
May 18 '15 at 13:47
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How to set caret(cursor) position in contenteditable element (div)?
...anks to much help from this thread, the MDN docs, and a lot of moz console watching..
//onKeyPress event
if (evt.key === "\"") {
let sel = window.getSelection();
let offset = sel.focusOffset;
let focus = sel.focusNode;
focus.textContent += "\""; //setting div's innerText directly ...
HMAC-SHA1 in bash
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Yes you can, but do watch out for linebreaks within your file as that would also be considered to be part of the value.
– Shawn Chin
Apr 19 '13 at 12:57
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In Typescript, How to check if a string is Numeric
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Simple answer: (watch for blank & null)
isNaN(+'111') = false;
isNaN(+'111r') = true;
isNaN(+'r') = true;
isNaN(+'') = false;
isNaN(null) = false;
https://codepen.io/CQCoder/pen/zYGEjxd?editors=1111
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Python subprocess.Popen “OSError: [Errno 12] Cannot allocate memory”
...nd that python was leaking file descriptors by just keeping an eye on it:
watch "ls /proc/$PYTHONPID/fd | wc -l"
Like you, I do want to capture the command's output, and I do want to avoid OOM errors... but it looks like the only way is for people to use a less buggy version of Python. Not ideal....
Is it possible to have a multi-line comments in R? [duplicate]
...he main limitation is that when you're commenting stuff out, you've got to watch your quotation marks: if you've got one kind inside, you'll have to use the other kind for the comment; and if you've got something like "strings with 'postrophes" inside that block, then there's no way this method is a...
Should I make HTML Anchors with 'name' or 'id'?
... and then you have access to the :target pseudo-class on the element. Just watch out not to change the width, like with bold text, cause that moves content around, which is disturbing.
Named anchors - my vote is to avoid:
"Names and ids are in the same namespace..." - Two attributes with the same...
Server.Transfer Vs. Response.Redirect
...sure on your
Web server and makes your applications run faster.
But watch out: because the "transfer" process can work on only those
sites running on the server; you can't use Server.Transfer to send
the user to an external site. Only Response.Redirect can do that.
Secondly, Server.T...
A type for Date only in C# - why is there no Date type?
...the value is passed from one environment to another, if time zones are not watched very carefully. This commonly occurs in JavaScript (whose Date object is really a date+time), but can easily happen in .NET also, or in the serialization as data is passed between JavaScript and .NET.
Serializing a D...
passing 2 $index values within nested ng-repeat
... that's a separate thing used for ng-repeat to understand unique items and watch for changes in the collection (see "Tracking and Duplicates" section of the docs: docs.angularjs.org/api/ng/directive/ngRepeat). The important point here is the "ng-init" - that is the correct way that the angular docs ...