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Node.js check if file exists
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A easier way to do this synchronously.
if (fs.existsSync('/etc/file')) {
console.log('Found file');
}
The API doc says how existsSync work:
Test whether or not the given path exists by checking with the file system.
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Tools for Generating Mock Data? [closed]
...es realistic data for business objects such as phone numbers, urls, names, etc. I can honestly state that this tool has paid for itself time and time again.
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Pros and cons of using sbt vs maven in Scala project [closed]
... of requirements or a description of your environment, previous knowledge, etc.
FWIW, there are more opinions in this scala mailing list thread.
My 2c are: Go with sbt if you don't have specific requirements
for simple projects, it's totally effortless (you don't even need a build file until you...
Django: “projects” vs “apps”
...evel app" which might contain widgets.py, fields.py, context_processors.py etc - all things you might want to import.
Similarly, if you can create something like a blog in a format that is pretty generic across installs, you can wrap it up in an app, with its own template, static content folder etc...
In Bash, how to add “Are you sure [Y/n]” to any command or alias?
...want to continue? <y/N> " prompt
if [[ $prompt =~ [yY](es)* ]]
then
(etc...)
That tests whether the user input starts with 'y' or 'Y' and is followed by zero or more 'es's.
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improve t...
What is ViewModel in MVC?
...ted to the page or application itself such as user name, application name, etc. View models provide a convenient object to pass to a rendering engine to create an HTML page. One of many reasons to use a view model is that view models provide a way to unit test certain presentation tasks such as han...
How to use JUnit to test asynchronous processes
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IMHO it's bad practice to have unit tests create or wait on threads, etc. You'd like these tests to run in split seconds. That's why I'd like to propose a 2-step approach to testing async processes.
Test that your async process is submitted properly. You can mock the object that accepts your...
How to configure logging to syslog in Python?
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and remember config the /etc/syslog.d/conf file, and restart syslog/rsyslog service
– linrongbin
Oct 25 '17 at 6:59
5
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input() error - NameError: name '…' is not defined
...le in your program with import os, and then the user types in
os.remove("/etc/hosts")
this will be evaluated as a function call expression by python and it will be executed. If you are executing Python with elevated privileges, /etc/hosts file will be deleted. See, how dangerous it could be?
To ...
Rename column SQL Server 2008
...ote in your answer that this stored procedure handles default values, null etc contraints while doing the rename, as opposed to a plain alter table that will FAIL if such constraints exist.
– Tuncay Göncüoğlu
Aug 23 '17 at 12:06
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