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NoSql Crash Course/Tutorial [closed]
...uce...so let's create a map function do to the same as a bit of SQL code:
SELECT * FROM users WHERE age > 10
In CouchDB you provide the server with a JavaScript function that gets run against every item in the database...
function (doc)
{
if (doc.objType == "users") {
if (doc.age &...
How to add http:// if it doesn't exist in the URL?
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This should be the selected answer - why roll your own when the language has native support? Nice work.
– Tom Auger
Aug 19 '13 at 15:24
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AngularJS disable partial caching on dev machine
...ew.
A drop down menu symbol will appear next to "Net" (title of the view).
Select "Disable Browser Cache" from the drop down menu.
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How do cache lines work?
...(DDR1/2/3/4 SDRAM burst transfer size is configurable up to 64B; CPUs will select the burst transfer size to match their cache line size, but 64B is common)
As a rule of thumb, if the processor can't forecast a memory access (and prefetch it), the retrieval process can take ~90 nanoseconds, or ~250...
How to pick a new color for each plotted line within a figure in matplotlib?
...sure that you have a list big enough and then use the index of the loop to select the color
colors = ['r', 'b', ...., 'w']
for i in range(20):
ax1.plot(x, y, color = colors[i])
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Opening port 80 EC2 Amazon web services [closed]
...up when I had similar issue.
Go to Security Groups tab, go to Inbound tab, select HTTP in Create a new rule combo-box, leave 0.0.0.0/0 in source field and click Add Rule, then Apply rule changes.
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Separation of business logic and data access in django
...ActivateUserForm(forms.Form):
user_id = IntegerField(widget = UsernameSelectWidget, verbose_name="Select a user to activate")
# the username select widget is not a standard Django widget, I just made it up
def clean_user_id(self):
user_id = self.cleaned_data['user_id']
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package R does not exist
...ou need to tell your IDE to regenerate these files somehow:
in IntelliJ, select Tools > Android > Generate sources for <project>
(If you know the way in another IDE, feel free to edit this answer!)
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How to disable all inside a form with jQuery?
...orm elements inside 'target'. See :input:
Matches all input, textarea, select and button elements.
If you only want the <input> elements:
$("#target input").prop("disabled", true);
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How to delete last character in a string in C#?
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build it with string.Join instead:
var parameters = sl.SelProds.Select(x=>"productID="+x.prodID).ToArray();
paramstr = string.Join("&", parameters);
string.Join takes a seperator ("&") and and array of strings (parameters), and inserts the seperator between each element of th...