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Find (and kill) process locking port 3000 on Mac
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Nothing above worked for me. Anyone else with my experience could try the following (worked for me):
Run:
lsof -i :3000 (where 3000 is your current port in use)
then check status of the reported PID :
ps ax | grep <PID>
finally, "begone with it...
Spring MVC: How to perform validation?
...is not a unique "cleanest and best way" to validate, but there is probably one that fits your project/problem/context better.
Let's have a User :
public class User {
private String name;
...
}
Method 1 : If you have Spring 3.x+ and simple validation to do, use javax.validation.constra...
In PHP, what is a closure and why does it use the “use” identifier?
... "use" is for in php.
there are better real-world examples than the above one. lets say you have to sort an multidimensional array by a sub-value, but the key changes.
<?php
function generateComparisonFunctionForKey($key) {
return function ($left, $right) use ($key) {
if...
boundingRectWithSize for NSAttributedString returning wrong size
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Everyone needs to look at this answer, because it works. Perhaps clearer documentation is needed for this method and attributed strings in general; it's not obvious where you need to look.
– macserv
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Javascript event handler with parameters
...o it the way you wrote. addEventListener calls it's callback with exactly one argument (the event) and you can't change that in any way.
– jfriend00
Apr 3 '12 at 20:39
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How should I unit test threaded code?
...just seems like too much of a minefield. I'd like to ask how people have gone about testing code that relies on threads for successful execution, or just how people have gone about testing those kinds of issues that only show up when two threads interact in a given manner?
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Environment variables in Mac OS X
...have a complete answer . Having to set the path or variable in two places (one for GUI and one for shell) is lame.
9 Answer...
Syntax for a single-line Bash infinite while loop
...ght combination of semicolons and/or braces. I'd like to do this, but as a one-liner from the command line:
12 Answers
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How to convert int to char with leading zeros?
...ght('00000' || cast(Your_Field as varchar(5)), 5)
– ronedg
Apr 20 '16 at 16:41
add a comment
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Python None comparison: should I use “is” or ==?
My editor warns me when I compare my_var == None , but no warning when I use my_var is None .
3 Answers
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