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Python, compute list difference
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If you have multiple equal elements in list this solution won't work.
– karantan
Sep 15 '16 at 13:02
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Creating a JSON response using Django and Python
...JSON content.
import json
from django.http import HttpResponse
response_data = {}
response_data['result'] = 'error'
response_data['message'] = 'Some error message'
Pre-Django 1.7 you'd return it like this:
return HttpResponse(json.dumps(response_data), content_type="application/json")
For D...
How can I match multiple occurrences with a regex in JavaScript similar to PHP's preg_match_all()?
... comment: rather than using regex, we now have URLSearchParams, which does all of this for us, so no custom code, let alone regex, are necessary anymore.
– Mike 'Pomax' Kamermans
Browser support is listed here https://caniuse.com/#feat=urlsearchparams
I would suggest an alternative reg...
YouTube iframe API: how do I control an iframe player that's already in the HTML?
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Fiddle Links: Source code - Preview - Small version
Update: This small function will only execute code in a single direction. If you want full support (eg event listeners / getters), have a look at Listening for Youtube Event in jQuery
As a result of a deep code a...
Get Android API level of phone currently running my application [duplicate]
...ntly running my application? I am sure its simple but I can not find it as all my searches bring up tons of junk.
4 Answers...
How do I perform the SQL Join equivalent in MongoDB?
...rect. The new $lookup operator added to the aggregation pipeline is essentially identical to a left outer join:
https://docs.mongodb.org/master/reference/operator/aggregation/lookup/#pipe._S_lookup
From the docs:
{
$lookup:
{
from: <collection to join>,
localField: <...
LinkedIn联合创始人：初创企业早期别花钱买用户 - 资讯 - 清泛网 - 专注C/C...
...需要太担心用户增长的问题了。
回答中国用户提问：
Q:如果可以回到2003年或者2004年，在LinkedIn发展过程中，哪些事情你会采取不同的做法？
A:两件事：1)我们会更关注推动增长的项目，而非其他项目。2)我们会关注自己的表现...
How to make a function wait until a callback has been called using node.js
...orking with event driven systems like node, your function should accept a callback parameter that will be invoked when then computation is complete. The caller should not wait for the value to be "returned" in the normal sense, but rather send the routine that will handle the resulting value:
funct...
How can I escape white space in a bash loop list?
I have a bash shell script that loops through all child directories (but not files) of a certain directory. The problem is that some of the directory names contain spaces.
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How to save a dictionary to a file?
...on has the pickle module just for this kind of thing.
These functions are all that you need for saving and loading almost any object:
def save_obj(obj, name ):
with open('obj/'+ name + '.pkl', 'wb') as f:
pickle.dump(obj, f, pickle.HIGHEST_PROTOCOL)
def load_obj(name ):
with open(...