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Join strings with a delimiter only if strings are not null or empty
...
.filter(Boolean) (which is the same as .filter(x => x)) removes all "falsy" values (nulls, undefineds, empty strings etc). If your definition of "empty" is different, then you'll have to provide it, for example:
[...].filter(x => typeof x === 'string' && x.length > 0)
wi...
What is the recommended approach towards multi-tenant databases in MongoDB?
...ecifics of the database design.
Collections (or buckets or however they call it in different DBs) are not the same thing as security schemas in RDBMS despite they behave as container for documents they are useless for applying good tenant separation. I couldn't find NoSQL database that can apply s...
Error TF30063: You are not authorized to access … \DefaultCollection
...by using the browser from within Visual Studio, View->Other Windows->Web Browser; Ctrl+Alt+R (or * Ctrl+W, W* in VS versions before VS2010) to navigate to the TFS page and log out of the wrong account and log back in.
For me, the issue was caused by using another live-id to unlock a windows p...
What is the purpose of the “role” attribute in HTML?
...d some spec work is underway to define the default accessibility role of a web component. Even if/once that API is standardized, there may be need to override the default role of a component.
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I see some people make up their own. Is that allowed or a correct use of the rol...
“find: paths must precede expression:” How do I specify a recursive search that also finds files in
... I tried find . -type f -printf ‘%TY-%Tm-%Td %TT %p\n’ as found on the web, and was met with "paths must precede expression". Problem was the quote marks were too "smart". I retyped the command, causing the quotes to be replaced, and it ran.
– Smandoli
Ja...
Which types can be used for Java annotation members?
...g[][]) are implicitly forbidden by the above rule.
Arrays of Class are not allowed as described in this answer.
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Unable to load DLL (Module could not be found HRESULT: 0x8007007E)
...found some dependency's missing (Oracle and some dll from IE). Need to install Oracle since my dll depends on that..then i will know :) Found the problem with DependencyWalker ;)
– Ingimar Andresson
Jan 25 '12 at 13:48
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Difference between author and committer in Git?
...b.com/torvalds/linux/commit/5beda7d54eafece4c974cfa9fbb9f60fb18fd20a
Git web interfaces like GitHub and GitLab may or may not generate author != committer
Since Git(Hub|Lab) hold both the upstream and the fork repositories on a the same machine, they can automatically do anything that you can do ...
To Workflow or Not to Workflow?
... match, so no problems there.
Regarding your concerns you are right. Basically WF4 is a new product and is lacking some important features and has some rough edges. There is a learning curve, you do have to do some things differently. The main point is long running and serialization, which is somet...
What is the difference between background and background-color
...specific example there's no difference in the result, since background actually is a shorthand for
background-color
background-image
background-position
background-repeat
background-attachment
background-clip
background-origin
background-size
Thus, besides the background-color, usin...