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How to generate unique ID with node.js
...will happen with your code, is that base.getID query will get queued up by for execution, but the while loop will continusouly run as a busy loop pointlessly.
You should be able to solve your issue with a callback as follows:
function generate(count, k) {
var _sym = 'abcdefghijklmnopqrstuvwxyz...
Create the perfect JPA entity [closed]
I've been working with JPA (implementation Hibernate) for some time now and each time I need to create entities I find myself struggling with issues as AccessType, immutable properties, equals/hashCode, ... .
So I decided to try and find out the general best practice for each issue and write this ...
Get user profile picture by Id
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http://graph.facebook.com/" + facebookId + "/picture?type=square
For instance:
http://graph.facebook.com/67563683055/picture?type=square
There are also more sizes besides "square". See the docs.
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SQLite in Android How to update a specific row
I've been trying to update a specific row for a while now, and it seems that there are two ways to do this. From what I've read and tried, you can just use the:
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Permission denied (publickey) when deploying heroku code. fatal: The remote end hung up unexpectedly
...ur existing keys do :
heroku keys
EDIT:
The above did not seem to work for me. I had messed around with the HOME environment variable and so SSH was searching for keys in the wrong directory.
To ensure that SSH checks for the key in the correct directory do :
ssh -vT git@heroku.com
Which wil...
Preventing Laravel adding multiple records to a pivot table
...empt of saving a doublet.
You should also take a look at the more straightforward answer from Barryvdh just below.
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Start an Activity with a parameter
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You may want to make sure b != null before you start grabbing from it
– Andrew
Oct 12 '10 at 15:03
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SQL SELECT speed int vs varchar
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Int comparisons are faster than varchar comparisons, for the simple fact that ints take up much less space than varchars.
This holds true both for unindexed and indexed access. The fastest way to go is an indexed int column.
As I see you've tagged the question postgreql, yo...
Mongoose, Select a specific field with find
...elds and want to omit only a few, you can prefix the field name with a -. For ex "-name" in the second argument will not include name field in the doc whereas the example given here will have only the name field in the returned docs.
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Read Excel File in Python
... " PinCode = {4} \n"
" PPTL = {5}"
.format(self.id, self.dsp_name, self.dsp_code,
self.hub_code, self.pin_code, self.pptl))
wb = open_workbook('sample.xls')
for sheet in wb.sheets():
number_of_rows = sheet.nrows
number_of_columns...