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Local variables in nested functions
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I banged my head on this wall for 3 hours today on a script for work. Your last point is very important, and is the main reason why I encountered this problem. I have callbacks with closures galore throughout my code, but trying the same technique in a loop is what got me.
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When should Flask.g be used?
...ss to any request object (e.g. when running batch DB operations in a shell script). If you try and extend the application context to encompass more than one request context, you're asking for trouble. So, rather than my test above, you should instead write code like this with Flask's contexts:
from...
How to call one shell script from another shell script?
I have two shell scripts, a.sh and b.sh .
17 Answers
17
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What are the best practices for JavaScript error handling?
I'm looking to start making my JavaScript a bit more error proof, and I'm finding plenty of documentation on using try , catch , finally , and throw , but I'm not finding a ton of advice from experts on when and where to throw errors.
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How do I check if a string is valid JSON in Python?
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Example Python script returns a boolean if a string is valid json:
import json
def is_json(myjson):
try:
json_object = json.loads(myjson)
except ValueError as e:
return False
return True
Which prints:
print is_json("{}") ...
How do I add a simple jQuery script to WordPress?
...ean about the tutorials. Here's how I do it:
First you need to write your script. In your theme folder create a folder called something like 'js'. Create a file in that folder for your javascript. E.g. your-script.js. Add your jQuery script to that file (you don't need <script> tags in a .js ...
Why use the SQL Server 2008 geography data type?
...method. The geography type is stored as a VARBINARY(MAX). Try running this script:
CREATE TABLE dbo.Geo
(
geo geography
)
GO
CREATE TABLE dbo.LatLon
(
lat decimal(9, 6)
, lon decimal(9, 6)
)
GO
INSERT dbo.Geo
SELECT geography::Point(36.204824, 138.252924, 4326) UNION ALL
SELECT geog...
How do I verify/check/test/validate my SSH passphrase?
...olsky: No, it requires a running authentication agent. Modify your startup scripts or options to bring one up.
– Ignacio Vazquez-Abrams
Feb 12 '14 at 23:00
22
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Script Tag - async & defer
... a couple of questions about the attributes async & defer for the <script> tag which to my understanding only work in HTML5 browsers.
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通信连接组件 · App Inventor 2 中文网
... 调用百度地图的uri参考地址：https://lbsyun.baidu.com/index.php?title=uri/api/web
打开系统照相机（比照相机组件打开的界面会丰富一些）
Action: android.media.action.STILL_IMAGE_CAMERA
可选取多个文件（图片、音频、视频等...