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What's the difference between => , ()=>, and Unit=>
I'm trying to represent a function that takes no arguments and returns no value (I'm simulating the setTimeout function in JavaScript, if you must know.)
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mongodb: insert if not exists
...-find-else-update block entirely. It will insert if the key doesn't exist and will update if it does.
Before:
{"key":"value", "key2":"Ohai."}
After:
{"key":"value", "key2":"value2", "key3":"value3"}
You can also specify what data you want to write:
data = {"$set":{"key2":"value2"}}
Now yo...
How to center icon and text in a android button with width set to “fill parent”
I want to have an Android Button with icon+text centered inside it. I'm using the drawableLeft attribute to set the image, this works well if the button has a width of "wrap_content" but I need to stretch to max width so I use width "fill_parent" . This moves my icon straight to the left of the b...
Is it possible to send a variable number of arguments to a JavaScript function?
...og(arg))
}
const values = ['a', 'b', 'c']
func(...values)
func(1, 2, 3)
And you can combine it with normal parameters, for example if you want to receive the first two arguments separately and the rest as an array:
function func(first, second, ...theRest) {
//...
}
And maybe is useful to you...
How can I read command line parameters from an R script?
I've got a R script for which I'd like to be able to supply several command-line parameters (rather than hardcode parameter values in the code itself). The script runs on Windows.
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Is there a simple way to remove unused dependencies from a maven pom.xml?
I have a large Maven project with many modules and many pom.xml files. The project has changed and I suspect the pom's contain some unnecessary dependencies. Is there is a command which removes any unused dependencies from a pom?
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Xcode can only refactor C and Objective-C code. How to rename swift class name in Xcode 6?
...hen I select Refactor -> Rename, it gives error Xcode can only refactor C and Objective-C code .
6 Answers
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How to open multiple pull requests on GitHub
...n I open a pull request on GitHub .
All commits since my last request and all new ones are automatically added to this request .
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Best programming aids for a quadriplegic programmer
... the heading of, "There, but for the grace of God, go you or I." This is brand new territory for me so I'm asking for some serious help here.
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How to get the process ID to kill a nohup process?
...
When using nohup and you put the task in the background, the background operator (&) will give you the PID at the command prompt. If your plan is to manually manage the process, you can save that PID and use it later to kill the process i...