如何为 lodash orderBy 的第二个参数指定两个值？

Question

Could anyone help me how to realize the following case: I have an array with objects, every object has field createEL , and some of them have updateEl .

My task is to sort all the elements with updateEl if it's available, otherwise sort by createEl

my current option:

orderBy(myData, ['updateEl','createEl'], 'desc)

I wonder if it's correct for cases if I don't have updateEl option.

Thanks in advance for every support

Answer 1

Use a function that returns either updateEl or createEl as the field to order by.

orderBy(myData, el => el.updateEl || el.createEl)