functionsort(x,fc,fm,fs)// x:  an array// fc: compare function (a, b)// fm: map function (v, i, x)// fs: swap function (x, i, j)

constxarray=require('extra-array');// Sort using default comparison.varx=[-2,-3,1,4];xarray.sort(x);// → [ -3, -2, 1, 4 ]  (compares numbers)// Sort using absolute comparison.xarray.sort(x,(a,b)=>Math.abs(a)-Math.abs(b));// → [ 1, -2, -3, 4 ]// Sort using absolute values.xarray.sort(x,null,v=>Math.abs(v));// → [ 1, -2, -3, 4 ]

References