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Show whitespace characters in Visual Studio Code

Is it possible to show whitespace characters, like the space character, in Visual Studio Code? There doesn' ... whitespace characters using CSS. See Question&Answers more detail:os...

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macos - Postgres - FATAL: database files are incompatible with server

After restarting my MacBook Pro I am unable to start the database server: could not connect to server: No ... would be very much appreciated. See Question&Answers more detail:os...

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javascript - Draw radius around a point in Google map

I'm using the Google Maps API and have added markers. Now I want to add a 10 mile radius around each ... would that work? (feature deprecated) See Question&Answers more detail:os...

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What is the fundamental difference between WebSockets and pure TCP?

I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate ... is possible via websockets? See Question&Answers more detail:os...

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gnu make - How do you get the list of targets in a makefile?

I've used rake a bit (a Ruby make program), and it has an option to get a list of all the available targets, ... list: copy: run: plot: turnin: See Question&Answers more detail:os...

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javascript - How to toggle a boolean?

Is there a really easy way to toggle a boolean value in javascript? So far, the best I've got outside of writing ... bool = bool ? false : true; See Question&Answers more detail:os...

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rest - 'Best' practice for restful POST response

So nothing new here I am just trying to get some clarification and cannot seem to find any in other posts. I ... GET to get the new resource. See Question&Answers more detail:os...

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version control - Difference between GIT and CVS

What is the difference between Git and CVS version control systems? I have been happily using CVS for over 10 ... is better than the other? See Question&Answers more detail:os...

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exception handling - Which parts of Real World Haskell are now obsolete or considered bad practice?

In the chapter 19 of Real World Haskell a lot of the examples now fail due to the change of Control.Exception. ... as of today (Nov 2017) See Question&Answers more detail:os...

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Django South - table already exists

I am trying to get started with South. I had an existing database and I added South (syncdb, schemamigration --initial ... Django 1.2, South 0.7 See Question&Answers more detail:os...

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json - Python: How would you save a simple settings/config file?

I don't care if it's JSON, pickle, YAML, or whatever. All other implementations I have seen are not forwards ... any simple way to do this? See Question&Answers more detail:os...

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macos - How can I open the Atom editor from the command line in OS X?

I have the Atom editor and was wondering how you can open a file or folder from the terminal in Atom. I am using a ... and how do I set it up? See Question&Answers more detail:os...

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java - EJB's - when to use Remote and/or local interfaces?

I'm very new to Java EE and I'm trying to understand the concept of Local interfaces and Remote ... for any clarification and suggestions. See Question&Answers more detail:os...

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thumbnails - Facebook Post Link Image

When someone posts a link on facebook, a script usually scans that link for any images, and displays a quick ... any thumbnails from my site? See Question&Answers more detail:os...

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Undo a git stash

I just did a stash in a project that I haven't commit. Is there a way to go back to the state before I ... seems there's no way to do this. See Question&Answers more detail:os...

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python - How to use PyCharm to debug Scrapy projects

I am working on Scrapy 0.20 with Python 2.7. I found PyCharm has a good Python debugger. I want to test my ... t know what else I have to do See Question&Answers more detail:os...

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Looking for suggestions for building a secure REST API within Ruby on Rails

I'm getting started on building a REST API for a project I'm working on, and it led me to do a ... project" or an "existing project"scenario? See Question&Answers more detail:os...

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How do you find the disk size of a Postgres / PostgreSQL table and its indexes

I'm coming to Postgres from Oracle and looking for a way to find the table and index size in terms of bytes/MB/ ... , but I'm not seeing where. See Question&Answers more detail:os...

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What is the difference between Strategy design pattern and State design pattern?

What are the differences between the Strategy design pattern and the State design pattern? I was going through quite ... in layman's terms? See Question&Answers more detail:os...

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node.js - Detect if called through require or directly by command line

How can I detect whether my Node.JS file was called using SH:node path-to-file or JS:require('path-to-file' ... it wasn't loaded with require? See Question&Answers more detail:os...

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How to add Google Analytics Tracking ID to GitHub Pages

Could be a simple question but I am full of doubts right now about adding Google Analytics Tracking ID to ... GitHub Page has been created? See Question&Answers more detail:os...

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java - How to Iterate over a Set/HashSet without an Iterator?

How can I iterate over a Set/HashSet without the following? Iterator iter = set.iterator(); while (iter.hasNext()) ... .println(iter.next()); } See Question&Answers more detail:os...

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Mysql command not found in OS X 10.7

I cant get my mysql to start on os x 10.7. It is located in /usr/local/mysql/bin/mysql I get ... /private/var/mysql/private/var/mysql/bin See Question&Answers more detail:os...

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url encoding - What is %2C in a URL?

I'm trying to understand the structure of a URL, and I'm seeing a lot of %2C. I'm guessing this is a ... encoding. What does that stand for? See Question&Answers more detail:os...

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javascript - What are express.json() and express.urlencoded()?

I cannot find any documentation on express.json() and express.urlencoded(). What do each of them do exactly? See Question&Answers more detail:os...

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sql - MySQL OPTIMIZE all tables?

MySQL has an OPTIMIZE TABLE command which can be used to reclaim unused space in a MySQL install. Is there a ... d have to script up yourself? See Question&Answers more detail:os...

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python - When to use Serializer's create() and ModelViewset's perform_create()

I want to clarify the given documentation of Django-rest-framework regarding the creation of a model object. So ... and serializer's create(). See Question&Answers more detail:os...

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javascript - How can I make an image carousel with only CSS?

I'm looking to make an image carousel, where a user can toggle between images, by clicking on arrows. For ... I go about accomplishing this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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