I was looking for javascript documentation and found this I don’t understand how logkey function is working in addeventlistener . when I press a key, the console prints its code but logkey is not having any parameters in addeventlistener. How did it print e.code ? Answer You pass the function as a param…
Tag: optional-parameters
Using destructuring to define optional parameters in ES6
I have a function that performs an AJAX call, as such: Where the second parameter is optional, i.e. in some cases that parameter is required, in others it isn’t: and: In the second instance I’d like to be able to omit the undefined parameter and I believe assigning options/defaults by way of destr…
Is there a way to provide named parameters in a function call in JavaScript?
I find the named parameters feature in C# quite useful in some cases. What can I use if I want this in JavaScript? What I don’t want is this: That approach I’ve already used. Is there another way? I’m okay using any library to do this. Answer ES2015 and later In ES2015, parameter destructuring can be used to …