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Get the latest record from mongodb collection
...llection. Without transactions this will not be perfect, but with only one item in the "last updated" collection it will always be fast.
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How do I prompt for Yes/No/Cancel input in a Linux shell script?
...ilable method to get user input at a shell prompt is the read command. The best way to illustrate its use is a simple demonstration:
while true; do
read -p "Do you wish to install this program?" yn
case $yn in
[Yy]* ) make install; break;;
[Nn]* ) exit;;
* ) echo "Pl...
form_for with nested resources
...-urls-from-objects
For example, inside a collections partial with comment_item supplied for iteration,
<%= link_to "delete", article_comment_path(@article, comment_item),
:method => :delete, :confirm => "Really?" %>
What jamuraa says may work in the context of Article, but it d...
How can I add new array elements at the beginning of an array in Javascript?
...[newFirstElement].concat(array) // [ 4, 3, 2, 1 ]
concat can also append items. The arguments to concat can be of any type; they are implicitly wrapped in a single-element array, if they are not already an array:
const array = [ 3, 2, 1 ]
const newLastElement = 0
// Both of these lines are equ...
How do you make a LinearLayout scrollable?
I have lot of items on the screen and I need to use the scrollbar so the user can scroll down. However, the scroll is either not visible or it's not working. How is it possible to add a scrollbar to a LinearLayout ?
...
Print PHP Call Stack
...
Brad, that solution doesn't remove the last item from the stack trace so you don't show the trace item caused by the new Exception
– TroySteven
Sep 12 '19 at 15:05
...
Visual Studio immediate window command for Clear All
...80.DTE2 = Marshal.GetActiveObject("VisualStudio.DTE.11.0")
dte.Windows.Item("Immediate Window").Activate() 'Activate Immediate Window
dte.ExecuteCommand("Edit.SelectAll")
dte.ExecuteCommand("Edit.ClearAll")
Marshal.ReleaseComObject(dte)
End Sub
to automatically clear immediate wi...
How do you rotate a two dimensional array?
...tes the entire matrix. This sentence is very important, so please try your best to understand it before moving on.
Now, we need a way of actually moving elements, i.e. rotate each element, and subsequently the layer, and ultimately the matrix. For simplicity, we’ll revert to a 3x3 matrix — tha...
How to get current CPU and RAM usage in Python?
...cess_stats:
'''process_stats is able to provide counters of (all?) the items available in perfmon.
Refer to the self.supported_types keys for the currently supported 'Performance Objects'
To add logging support for other data you can derive the necessary data from perfmon:
---------...
Twitter bootstrap remote modal shows same content every time
...ance:
$('#myModal').data('bs.modal').options.remote = "http://website.com/item/7";
However, that won't work in this case, because...
Second, the Modal plugin is designed to load the remote resource in the constructor of the Modal object, which unfortunately means that even if a change is made to...