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Syntax for a single-line Bash infinite while loop
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while true; do foo; sleep 2; done
By the way, if you type it as a multiline (as you are showing) at the command prompt and then call the history with arrow up, you will get it on a single line, correctly punctuated.
$ while true
> do
> echo "hello"
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Random strings in Python
...: http://docs.python.org/2/library/os.html
Return a string of n random bytes suitable for cryptographic use.
This function returns random bytes from an OS-specific randomness
source. The returned data should be unpredictable enough for
cryptographic applications, though its exact qualit...
How can I change or remove HTML5 form validation default error messages?
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you can remove this alert by doing following:
<input type="text" pattern="[a-zA-Z]+"
oninvalid="setCustomValidity(' ')"
/>
just set the custom message to one blank space
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Xcode stuck on Indexing
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I had this exact problem, it was caused by a 20 item array literal. Had to switch to different syntax. Pretty silly.
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MongoDB drop every database
...omeone was interacting with one of the databases then it would be excluded by the db.getSiblingDB call.
– carlin.scott
Apr 21 '16 at 18:30
3
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How to focus on a form input text field on page load using jQuery?
...ritating for them to have the focus stolen away.
You could check for this by adding onfocus attributes in each of your <input> elements to record whether the user has already focussed on a form field and then not stealing the focus if they have:
var anyFieldReceivedFocus = false;
function f...
Difference between break and continue in PHP?
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I was just bitten by this "feature". How can I continue a while loop based on things discovered in a switch case?
– MattBianco
Nov 28 '17 at 14:46
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Concat all strings inside a List using LINQ
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By using LINQ, this should work;
string delimiter = ",";
List<string> items = new List<string>() { "foo", "boo", "john", "doe" };
Console.WriteLine(items.Aggregate((i, j) => i + delimiter + j));
class descri...
Int or Number DataType for DataAnnotation validation attribute
...sed but the issue still valid with Asp.Net Core 2.2 as well.
I managed it by adding data-val-number to the input field the use localization on the message:
<input asp-for="Age" data-val-number="@_localize["Please enter a valid number."]"/>
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SQL: capitalize first letter only [duplicate]
...)-1-decode(level,1,0,instr(name,'-',1,level-1))))) new from table;
connect by level<= (select (length(name)-length(replace(name,'-','')))+1 from table));
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