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Why is Node.js single threaded? [closed]
...d memory is the limiting factor. In the event loop model, the loop thread selects the next event (I/O finished) to handle. So the thread is always busy (if you program it correctly of course).
The event loop model as all new things seems shiny and the solution for all issues but which model to us...
How can I list all collections in the MongoDB shell?
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> show collections
will list all the collections in the currently selected DB, as stated in the command line help (help).
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How to delete last character from a string using jQuery?
...end the
// extraction. If omitted,
// slice() selects all
// characters from the begin
// position to the end of
// the string.
var str = '123-4';
alert(str.slice(0, -1));
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Visual Studio debugger - Displaying integer values in Hex
...log.
Break after setting the variable.
Right mouse click the variable and select "Add Watch" or "QuickWatch"
Right mouse click the line in the Watch dialogue.
Uncheck "Hexadecimal Display"
The display will now be in decimal.
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IntelliJ: Never use wildcard imports
...open "Imports" under "Code Style", and check the "Use single class import" selection. You can also completely remove entries under "Packages to use import with *", or specify a threshold value that only uses the "*" when the individual classes from a package exceeds that threshold.
Update: in IDEA...
How to allow only numeric (0-9) in HTML inputbox using jQuery?
...n(inputFilter) {
return this.on("input keydown keyup mousedown mouseup select contextmenu drop", function() {
if (inputFilter(this.value)) {
this.oldValue = this.value;
this.oldSelectionStart = this.selectionStart;
this.oldSelectionEnd = this.selectionEnd;
} e...
JPA getSingleResult() or null
...the query did not match any row or whether the query matched a row but the selected column contains null as its value. from: stackoverflow.com/a/12155901/1242321
– user1242321
Mar 16 '16 at 1:36
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How to loop through all the properties of a class?
... where c.Name.StartsWith("Doc")
select c).ToArray();
foreach (PropertyInfo item in properties)
{
if (item.PropertyType.FullName == "System.String")
item.SetValue(this, "", null);
}
}
I used the code ...
scale Image in an UIButton to AspectFit?
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@OrtwinGentz you can select the mode and set Aspect fit instead of scale to fill.
– Daniel
Apr 11 '16 at 9:06
add a comme...
Add 10 seconds to a Date
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Can anybody please explain what the selected answer (currently from @zzzzBov) is doing wrong? It works for me.
– tsemer
Jul 21 '16 at 10:55
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