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mongo - couldn't connect to server 127.0.0.1:27017
...ress 'Ctrl+c' or quit it.)
Type the command to start mongo now in another window.
Hope this works for you !
for those who want to repair your data files while preserving the original files
mongo recover
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How to get unique values in an array
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Update 18-04-2017
It appears as though 'Array.prototype.includes' now has widespread support in the latest versions of the mainline browsers (compatibility)
Update 29-07-2015:
There are plans in the works for browsers to support a standardized 'Array.prototype.includes' method, which alth...
Is it possible to listen to a “style change” event?
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Things have moved on a bit since the question was asked - it is now possible to use a MutationObserver to detect changes in the 'style' attribute of an element, no jQuery required:
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(mutationRecord) {
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Visual Studio 2010 isn't building before a run when there are code changes
...s set to one of these configurations. Just changed it to Debug_Unicode and now it is building!
– sergiol
Oct 3 '16 at 17:34
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How to create a printable Twitter-Bootstrap page
... Visible Hidden
Bootstrap 3 update:
Print classes are now in documents: http://getbootstrap.com/css/#responsive-utilities-print
Similar to the regular responsive classes,
use these for toggling content for print.
Class Browser Print
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How to modify a global variable within a function in bash?
... tell you, that it is impossible to fix. This is wrong, but it is a long known difficult to solve problem.
There are several ways on how to solve it best, this depends on your needs.
Here is a step by step guide on how to do it.
Passing back variables into the parental shell
There is a way to p...
Python nonlocal statement
...: 2
# outer: 1
# global: 0
To this, using nonlocal, where inner()'s x is now also outer()'s x:
x = 0
def outer():
x = 1
def inner():
nonlocal x
x = 2
print("inner:", x)
inner()
print("outer:", x)
outer()
print("global:", x)
# inner: 2
# outer: 2
# global...
PostgreSQL: Drop PostgreSQL database through command line [closed]
...elect * from pg_stat_activity;" say? Are the other users besides yourself now connected? If so, you might have to edit your pg_hba.conf file to reject connections from other users, or shut down whatever app is accessing the pg database to be able to drop it. I have this problem on occasion in pro...
Bootstrapping still requires outside support
... of in one jump.) Because Yazzle-lite is a proper subset of Yazzleof, you now have a compiler which can compile itself.
There is a really good writeup about bootstrapping a compiler from the lowest possible level (which on a modern machine is basically a hex editor), titled Bootstrapping a simple ...
How to call asynchronous method from synchronous method in C#?
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AsyncContext now has a Run method that takes a lambda expression, so you should use var result = AsyncContext.Run(() => MyAsyncMethod());
– Stephen Cleary
Jun 23 '13 at 12:42
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