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How to set time delay in javascript
...t and clearInterval both these methods take an integer identifier returned from above functions setTimeout and setInterval
Example:
setTimeout
alert("before setTimeout");
setTimeout(function(){
alert("I am setTimeout");
},1000); //delay is in milliseconds
alert("after setTimeout")...
Python argparse: How to insert newline in the help text?
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Try using RawTextHelpFormatter:
from argparse import RawTextHelpFormatter
parser = ArgumentParser(description='test', formatter_class=RawTextHelpFormatter)
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Deleting Files using Git/GitHub
... which are still 'tracked' with:
git ls-files --deleted
To delete files from a branch, you can do something like this:
git ls-files --deleted -z | xargs -0 git rm
From man git-rm:
Remove files from the index, or from the working tree and the index. git-rm will not remove a file from just y...
Github: Import upstream branch into fork
I have a fork ( origin ) from a project ( upstream ) on github. Now the upstream project has added a new branch, I want to import into my fork. How do I do that?
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How efficient can Meteor be while sharing a huge collection among many clients?
...s.
For example, you can write a publish function that reads a GPS position
from a device inside a Meteor.setInterval, or polls a legacy REST API
from another web service. In those cases, you'd emit changes to the
merge box by calling the low-level added, changed and removed DDP API.
The Mongo driv...
How to Programmatically Add Views to Views
...say I have a LinearLayout , and I want to add a View to it, in my program from the Java code. What method is used for this? I'm not asking how it's done in XML, which I do know, but rather, how can I do something along the lines of this sample code?
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How to present popover properly in iOS 8
...d make a viewcontroller class for it as usual. Make a segue as shown below from the object you want to open the popover, in this case the UIBarButton named "Config".
In the "mother viewcontroller" implement the UIPopoverPresentationControllerDelegate and the delegate method:
func popoverPresenta...
How to create a .jar file or export jar on IntelliJ (like eclipse java archive export) [duplicate]
I was using IntelliJ-IDEA IDE , I want to create a jar file from java compiled class files. but I not found command or file, How to create a jar file (like eclipse java archive export)
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How do I create a constant in Python?
...alent to Java's final. However, it does not actually prevent reassignment:
from typing import Final
a: Final = 1
# Executes fine, but mypy will report an error if you run mypy on this:
a = 2
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How to play with Control.Monad.Writer in haskell?
...t has logging capabilities, but also does something else - say it can read from an environment too. You'd implement this as
type RW r w a = ReaderT r (Writer w a)
Now because the writer is inside the ReaderT monad transformer, if you want to log output you can't use tell w (because that only oper...