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CORS: Cannot use wildcard in Access-Control-Allow-Origin when credentials flag is true
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Ah, now that's more convenient, however, the result's the same :( BTW, I'm using app.use(cors({credentials: true}));
– ixaxaar
Nov 2 '13 at 15:34
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MongoDB drop every database
I would like to know if there're a command to drop every databases from my MongoDB?
8 Answers
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Histogram Matplotlib
... I have the center of the bins and the number of events per bin. How can I now plot is as a histogram. I tried just doing
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How to validate a url in Python? (Malformed or not)
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I didn't know you could test an if statement with a list of non-None elements. That's helpful. Also +1 for using a built-in module
– Marc Maxmeister
Aug 4 '16 at 17:05
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Is there a method that calculates a factorial in Java?
I didn't find it, yet. Did I miss something?
I know a factorial method is a common example program for beginners. But wouldn't it be useful to have a standard implementation for this one to reuse?
I could use such a method with standard types (Eg. int, long...) and with BigInteger / BigDecimal, too...
How to “inverse match” with regex?
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Don't know which language it is written in, but worked like a charm in Sublime text to clean up my test data. Thanks!
– Matthias dirickx
May 4 '17 at 11:21
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How to grant remote access to MySQL for a whole subnet?
... apply to: user_name@'192.168.1.my-hacked-rnds.killing.mysql.com'???? i'll now walk on, since this being MySQL I sense I don't want to know the answer.
– Florian Heigl
Apr 24 '15 at 19:24
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How to remove all the null elements inside a generic list in one go?
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I do not know of any in-built method, but you could just use linq:
parameterList = parameterList.Where(x => x != null).ToList();
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How do I specify unique constraint for multiple columns in MySQL?
...mple:
PRODUCT_NAME, PRODUCT_VERSION
'glass', null
'glass', null
'wine', 1
Now if you try to insert ('wine' 1) again it will report a constraint violation
Hope this helps
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How to make a phone call using intent in Android?
...t placed call permissions tag before application tag in manifest file
and now every thing is working fine.
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