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How do I update pip itself from inside my virtual environment?
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This is now what pip itself recommends, if it detects a newer version of itself.
– tephyr
May 29 '16 at 21:51
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Showing empty view when ListView is empty
... any idea how to do that in app inventor?
– JinSnow
Mar 26 '15 at 16:56
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How to structure a express.js application?
...dule.exports = mongoose.model('PhoneNumber', PhoneNumberSchema);
and then if I need to create a phone number, it's as simple as:
var PhoneNumber = require('../models/phoneNumber');
var phoneNumber = new PhoneNumber();
if I need to use the schema, then PhoneNumber.schema
(which assumes that we are ...
Access-control-allow-origin with multiple domains
In my web.config I would like to specify more than one domain for the access-control-allow-origin directive. I don't want to use * . I've tried this syntax:
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How does libuv compare to Boost/ASIO?
...t libraries available, I have opted to consider additional Boost libraries if they are either directly provided or trivial to implement.
libuv Boost
Event Loop: yes Asio
Threadpool: yes Asio + Threads
Threading: ...
Real differences between “java -server” and “java -client”?
Is there any real practical difference between "java -server" and "java -client"?
11 Answers
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What generates the “text file busy” message in Unix?
...eck what other processes are using it. You can use kill command to kill it if needed.
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Suppress/ print without b' prefix for bytes in Python 3
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If the bytes use an appropriate character encoding already; you could print them directly:
sys.stdout.buffer.write(data)
or
nwritten = os.write(sys.stdout.fileno(), data) # NOTE: it may write less than len(data) bytes
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Javascript: Round up to the next multiple of 5
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I arrived here while searching for something similar.
If my number is —0, —1, —2 it should floor to —0, and if it's —3, —4, —5 it should ceil to —5.
I came up with this solution:
function round(x) { return x%5<3 ? (x%5===0 ? x : Math.floor(x/5)*5) : Math.cei...
How to add 'ON DELETE CASCADE' in ALTER TABLE statement
...d try your above command, put add constraint instead of modify constraint.
Now this is the command:
ALTER TABLE child_table_name
ADD CONSTRAINT fk_name
FOREIGN KEY (child_column_name)
REFERENCES parent_table_name(parent_column_name)
ON DELETE CASCADE;
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