如何重构将const对象名称添加到数组中？

Question

My code is working, but it looks very creepy.

ar2.push(pr1);ar2.push(pr2);ar2.push(pr3);ar2.push(pr4);ar2.push(pr5);ar2.push(pr6);

basically all those pr1, pr2 things are declared const... I was trying to add them to the array using a for loop, to no avail. Is there any way to do a one liner for this?

Answer 1

push accepts multiple parameters, so you can just list them all when you push :

ar2.push(pr1, pr2, pr3, pr4, pr5, pr6);

That said, it's a bit of a code smell to have so many standalone variable names - if possible, you might consider modifying your code such that the pr s are defined in an array to begin with, rather than push ing afterwards.

Answer 2

只需使用Array.prototype.push.apply ：

Array.prototype.push.apply(ar2, [pr1, pr2, pr3, pr4, pr5, pr6]);