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Renaming files in a folder to sequential numbers
...%04d.jpg" "$a") #04 pad to length of 4
mv -i -- "$i" "$new"
let a=a+1
done
using the -i flag prevents automatically overwriting existing files.
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Returning a boolean from a Bash function
...e when you consider that in programming things can usually only succeed in one way, but can fail in infinite ways. Well maybe not infinite, but lots, the odds are stacked against us. Success/Error(s) is not boolean. I think this "Use 0 for true and 1 for false." should read "Use 0 for success and n...
Is there a way to iterate over a range of integers?
... loop and works fine. Many consider the for-each syntax a lot less error-prone and there is nothing intrinsically inefficient about it.
– VinGarcia
Jun 17 '17 at 3:17
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Add context path to Spring Boot application
...wn solution. Spring-boot already supports that.
If you don't already have one, add an application.properties file to src\main\resources. In that properties file, add 2 properties:
server.contextPath=/mainstay
server.port=12378
UPDATE (Spring Boot 2.0)
As of Spring Boot 2.0 (due to the support o...
What is the proper way to re-throw an exception in C#? [duplicate]
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The first preserves the original stack trace of the exception, the second one replaces it with the current location.
Therefore the first is BY FAR the better.
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Upgrading Node.js to latest version
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None of them are supported in Windows. NVM suggests nvmw and nvm-windows that are "neither supported nor developed by" NVM and I havent testsed out yet. @nelsonic your answer is awesome
– slevin
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Determine function name from within that function (without using traceback)
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inspect.currentframe() is one such way.
– Yuval
Sep 20 '14 at 10:47
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Looping through array and removing items, without breaking for loop
...ndexed when you do a .splice(), which means you'll skip over an index when one is removed, and your cached .length is obsolete.
To fix it, you'd either need to decrement i after a .splice(), or simply iterate in reverse...
var i = Auction.auctions.length
while (i--) {
...
if (...) {
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Recommended way of making React component/div draggable
I want to make a draggable (that is, repositionable by mouse) React component, which seems to necessarily involve global state and scattered event handlers. I can do it the dirty way, with a global variable in my JS file, and could probably even wrap it in a nice closure interface, but I want to kno...
How to wait for all threads to finish, using ExecutorService?
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It is a good pattern if this task handling is a one-time event. If this is done repeatedly during the same runtime, however, it is not optimal, as you would create and tear down threads repeatedly every time it is executed.
– sjlee
A...