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[JavaScript] Arrays of objects are sorted by the properties of objects

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Posted on 10/24/2018 2:32:52 PM | | |
The most common way to sort arrays is to sort them by the size of the first letter or number of elements in the array



sort() method changes the original array, and sort methods are not strictly sorted by number size.
If you want to sort the array by size, you need to add a comparison function to the sort() method



Compare function compare return value characteristics:

If a is less than b, a should appear before b in the sorted array (i.e. ascending arrangement), returning a value less than 0
If a is equal to b, it returns 0
If a is greater than b, a value greater than 0 is returned

So can we use the sort method to sort the array of objects according to their attributes?
The answer is yes
Just like the above order the array by size and specify the comparison function, only the properties of the object are being compared at this time
Upper code: Sort the following array of objects by age


The final printed result is shown below:

This completes the array of objects sorted according to the object attributes!





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