JavaScript delete elements in array by a criteria

Question

I have an array, and I want to delete elements that have status equal to true (as seen in this part of code)

listArray.forEach((element, index) => {
        if (element.status === true) {
            listArray.splice(index, 1);
        }
    });

The problem is that, if, for example, the first, second and third elements have status true, than the second element will not be deleted

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter — epascarello, Dec 07 '17 at 13:02
So what you want is to [*filter*](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter) the array? — Some programmer dude, Dec 07 '17 at 13:02
Yes because you modify your array at same time you walk throught it — GGO, Dec 07 '17 at 13:03

turhanco · Accepted Answer · 2017-12-07T13:05:00.460

1

Try this:

listArray.filter(element => element.status === false)

You can also do:

listArray.filter(element => !element.status)

edited Dec 07 '17 at 13:05

answered Dec 07 '17 at 13:02

turhanco

assembler · Answer 2 · 2017-12-07T13:09:52.823

-2

try this:

listArray = listArray.filter(element => !element.status);

edited Dec 07 '17 at 13:09

answered Dec 07 '17 at 13:02

assembler

This does not filter the array. Instead returns a boolean array. – turhanco Dec 07 '17 at 13:03
wrong keyword, I admit – assembler Dec 07 '17 at 13:11

2 Answers2