remove matched items found in for loop

Question

Im doing a search through an object data response and detecting if it includes 'wdt'.. This works fine; however I am struggling to destroy or remove the found items from being processed with my data.

Don't believe there is an effective single keyword like delete to do this in JavaScript?

I am trying splice currently, however it doesn't seem effective. Still finding the items in my console.log(data);

let data = await getData(); 

filterChkpt();

function filterChkpt(){
    for (let i = 0; i < data.length; i++) {
      if (data[i].url.indexOf('wdt') > -1) {
          console.log(data[i]);

          data[i].splice(index, 1); // here would like to remove matches

      } else {
         // console.log('else: ', data[i].url);
      }
    }
  }

  console.log(data);

  if (!this.data) {
    this.data = {};
  }

  this.data.storage = new Memory({ data });

  return this;

Answer 1

Unless there's some reason you need to mutate the original object, this is what array.filter is for. (And it spooks me to modify the object while iterating over it.)

const data = Array.from({length: 10}, () => ({ url: Math.random() > 0.5 ? 'foo' : 'bar' }));

console.log(data);
console.log(data.filter(x => x.url === 'foo'));

Answer 2

This is not a solution but an explanation to why the code is not working as you expect

a = [a, b, c, d, e, f]

i=0 => a
i=1 => b
i=2 => c  ( now you decide to splice the array >> a = [a, b, d, e, f]
i=3 => e!  ( you missed the "d" cos it was shifted to the left

You should've i-- every time you spliced the array