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Mongod complains that there is no /data/db folder

...ebody finds it useful: I had the same problem, but the error message was a bit different (said that the group 'mongod' doesn't exists when I tried chown mongod:mongod) -> however, using chown $USER worked for me, thanks... – trainoasis Jan 20 '14 at 10:43 ...
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Why are Python lambdas useful? [closed]

...e about the definition of "functional programming" above? It came a little bit confusing to me. – stdout Feb 6 '17 at 22:53 ...
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Length of string in bash

... Could you please explain a bit the expressions of #myvar and {#myvar}? – Lerner Zhang Sep 19 '16 at 6:03 ...
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GPL and LGPL open source licensing restrictions [closed]

...ward in fact that you need to engage a lawyer just to see if you can use a bit of code. This is why developers should never use GPL licenses. – Womble Jun 1 '17 at 0:53 add a ...
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How do you display code snippets in MS Word preserving format and syntax highlighting?

... it converts the code text to formatted color code with line numbers !!! Bit Rejoice! Code Format is available here: https://appsource.microsoft.com/en-us/product/office/WA104379501?tab=Overview share | ...
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Pass props to parent component in React.js

... Update (9/1/15): The OP has made this question a bit of a moving target. It’s been updated again. So, I feel responsible to update my reply. First, an answer to your provided example: Yes, this is possible. You can solve this by updating Child’s onClick to be this.pr...
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Determining the last changelist synced to in Perforce

...force recommends running the following command to determine if you've been bit by the above gotchas; it should indicate nothing was synced or removed: p4 sync -n @changelist_number share | improve...
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How to avoid the “divide by zero” error in SQL?

... / NULLIF(divisor, 0) ... Now the only problem is to remember the NullIf bit, if I use the "/" key. share | improve this answer | follow | ...
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SQL Server IN vs. EXISTS Performance

... The accepted answer is shortsighted and the question a bit loose in that: 1) Neither explicitly mention whether a covering index is present in the left, right, or both sides. 2) Neither takes into account the size of input left side set and input right side set. ...
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C++ code file extension? .cc vs .cpp [closed]

... @jd. Agreed. It makes automated tools a wee bit easier if h/c files turn into hpp/cpp files. – Paul Nathan Oct 9 '09 at 20:34 4 ...