Immutable Arrays

Copy an array…

clone = array => [...array]

Add something to the end of an array…

push = array => [...array, thing]

Remove the last item in an array…

pop = array => array.slice(0,1)

…or the first item…

shift = array => array.slice(1)

or an item at a specific index…

delete = i => array => [...array.slice(0,i), ...array.slice(i+1)]

If you are unsure whether a method mutates or not then checkout

Thank you Luke Jackson.


Now read this

Information Onslaught

There are physical limitations to how much I can learn in one go. My brain just fizzles out and the simplest things stop making sense. The first week at Founders and Coders has been intense. The cohort was split into groups of four and... Continue →