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Perform debounce in React.js
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2018: try promise debouncing
We often want to debounce API calls to avoid flooding the backend with useless requests.
In 2018, working with callbacks (Lodash/Underscore) feels bad and error-prone to me. It's easy to encounter boilerplate and concurrency issues due to API calls resolving in an a...
Parse a .py file, read the AST, modify it, then write back the modified source code
... a method to convert back to source. However, the codegen module here provides a pretty printer for the ast that would enable you do do so.
eg.
import ast
import codegen
expr="""
def foo():
print("hello world")
"""
p=ast.parse(expr)
p.body[0].body = [ ast.parse("return 42").body[0] ] # Replac...
find all unchecked checkbox in jquery
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Why repeat the guidance already provided years earlier? Furthermore, please never post code-only snippets on SO. All answers should be explained.
– mickmackusa
Jul 17 at 5:19
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Is mongodb running?
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Also, you may want to consider adding a filter to not return the grep process you are running. So: ps -ax | grep -v grep | grep mongo
– DCaugs
Dec 10 '15 at 13:36
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The default for KeyValuePair
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You can use the concept of the "new" option here, but avoid having to re-specify the type: if (getResult.Equals(Activator.CreateInstance(getResult.GetType())))
– kevinpo
Mar 21 '14 at 14:42
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How do I return multiple values from a function? [closed]
... Employee(NamedTuple): # inherit from typing.NamedTuple
name: str
id: int = 3 # default value
employee = Employee('Guido')
assert employee.id == 3
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What is the best place for storing uploaded images, SQL database or disk file system? [closed]
...esized. (This is another question, how to resize the images on the server side before storing. Maybe someone can please drop a .NET resource for that in the comment or so).
I wonder now what the best place for storing uploaded images is.
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SQL Server - copy stored procedures from one db to another
... SQL, and what I needed to do was to combine 2 .mdf databases into one. I did that using SQL Server 2008 Manager - Tasks > Import/Export tables.The tables and views were copied successfully, but there are no Stored procedures in the new database. Is there any way to do that?
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Freeing up a TCP/IP port?
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As the others have said, you'll have to kill all processes that are listening on that port. The easiest way to do that would be to use the fuser(1) command. For example, to see all of the processes listening for http requests on port 80 (run as...
Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
...me others it's ec2-user (or admin on some Debians, according to Bogdan Kulbida's answer)(can also be root, fedora, see below)
Trying to connect the wrong host. Is that the right host you are trying to log in to?
Note that 1. will also happen if you have messed up the /home/<username>/.ssh/a...