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Debugging iframes with Chrome developer tools
...ools in Chrome, there is a bar along the top, called the Execution Context Selector (h/t felipe-sabino), just under the Elements, Network, Sources... tabs, that changes depending on the context of the current tab. When in the Console tab there is a dropdown in that bar that allows you to select the...
Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
I want to slice a NumPy nxn array. I want to extract an arbitrary selection of m rows and columns of that array (i.e. without any pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it.
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Execute SQLite script
...return to my shell script, I think this works well:
$ sqlite3 example.db 'SELECT * FROM some_table;'
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How do I activate a virtualenv inside PyCharm's terminal?
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PyCharm 4 now has virtualenvs integrated in the IDE. When selecting your project interpreter, you can create, add, or select a virtualenv. They've added a "Python Console" that runs in the configured project interpreter.
More info here.
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How to generate a number of most distinctive colors in R?
...the colorBrewer package (and website). If you want diverging colours, then select diverging on the site. For example,
library(colorBrewer)
brewer.pal(7, "BrBG")
The I want hue web site gives lots of nice palettes. Again, just select the palette that you need. For example, you can get the rgb col...
Create a tag in a GitHub repository
...he target when you publish this release. Also UI will provide an option to select the branch/commit
Select branch or commit
Check "This is a pre-release" checkbox for qa tag and uncheck it if the tag is created for Prod tag.
After that click on "Update Release"
This will create a new Tag within the ...
What is The difference between ListBox and ListView
...ew, but you can easily create your own.
Another difference is the default selection mode: it's Single for a ListBox, but Extended for a ListView
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Are there good reasons not to use an ORM? [closed]
...honestly it isn't. Using an ORM tool means the tool/developer can insert, select, update or delete whatever he or she wants. Stored procedures provide a lot more security, especially in environments when dealing with client data. I think this is the biggest reason to consider. Security.
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How to iterate over values of an Enum having flags?
... .Split(new[] { ", " }, StringSplitOptions.None)
.Select(v => (Items)Enum.Parse(typeof(Items), v));
// This method will always end up with the most applicable values
value = Items.Bar | Items.Baz;
values = value.ToString()
.Split(new[] { ", " }, StringSplit...
How do I copy a string to the clipboard on Windows using Python?
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Get contents of clipboard: result = r.selection_get(selection = "CLIPBOARD")
– majgis
Jul 13 '11 at 3:19
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