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how to make a jquery “$.post” request synchronous [duplicate]
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From the Jquery docs: you specify the async option to be false to get a synchronous Ajax request. Then your callback can set some data before your mother function proceeds.
Here's what your code would look like if changed as...
How to add not null constraint to existing column in MySQL
...st practice to guard against such mishaps is to copy the column definition from the output of a SHOW CREATE TABLE YourTable query, modify it to include the NOT NULL constraint, and paste it into your ALTER TABLE... MODIFY... query.
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Download a working local copy of a webpage [closed]
...amp; images) to allow you to view the page offline as it appeared online.
From the Wget docs:
‘-k’
‘--convert-links’
After the download is complete, convert the links in the document to make them
suitable for local viewing. This affects not only the visible hyperlinks, but
any part of the ...
Replacing Spaces with Underscores
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You can also do this to prevent the words from beginning or ending with underscores like _words_more_words_, This would avoid beginning and ending with white spaces.
$trimmed = trim($string); // Trims both ends
$convert = str_replace('', '_', $trimmed);
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How to use IntelliJ IDEA to find all unused code?
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In latest IntelliJ versions, you should run it from Analyze->Run Inspection By Name:
Than, pick Unused declaration:
And finally, uncheck the Include test sources:
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Filtering a data frame by values in a column [duplicate]
...me indexing
studentdata[studentdata$Drink == 'water',]
Read the warning from ?subset
This is a convenience function intended for use interactively. For
programming it is better to use the standard subsetting functions like
‘[’, and in particular the non-standard evaluation of argumen...
Git conflict markers [duplicate]
After I pulled from remote branch, I got conflict, when I open the file it looks something like below:
1 Answer
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Is local static variable initialization thread-safe in C++11? [duplicate]
...y suggestion that static initialization would somehow provide an exemption from that rule, so I didn't think it worth calling out specifically.
– Kerrek SB
Oct 2 '14 at 10:44
2
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Convert a space delimited string to list [duplicate]
... 'Samoa',
'Arizona',
'California',
'Colorado']
If you need one random from them, then you have to use the random module:
import random
states = "... ..."
random_state = random.choice(states.split())
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How to return images in flask response? [duplicate]
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You use something like
from flask import send_file
@app.route('/get_image')
def get_image():
if request.args.get('type') == '1':
filename = 'ok.gif'
else:
filename = 'error.gif'
return send_file(filename, mimetype='image/...