Creates a function that invokes the provided function with its arguments arranged according to the specified indexes.
- Use
Array.prototype.map()
to reorder arguments based onindexes
. - Use the spread operator (
...
) to pass the transformed arguments tofn
.
代码实现
const rearg = (fn, indexes) => (...args) => fn(...indexes.map(i => args[i]));
let rearged = rearg(
function(a, b, c) {
return [a, b, c];
},
[2, 0, 1]
);
rearged('b', 'c', 'a'); // ['a', 'b', 'c']
翻译自:https://www.30secondsofcode.org/js/s/rearrange-function-arguments