Question 53768 in Javascript Question posted in
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How to push all ids to an array except first id? – Javascript

How to push all response’ ids except first id ? I mean below code pushes all ids to idList array. I want to push all ids again but except first id should not be pushed.How to edit below code ?

const getAllId = async () => {
  let res = await axios({
    method: "get",
    url: "/v1/feed",
  });
  const idList = [];
  res.feed.forEach((item) => {
    idList.push(item.id);
  });
  return idList;
};
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2

Answers


  1. 0

    Use .map to transform an array to an array, and .slice() to skip the first item in res.feed.

    const res = await axios({
  method: "get",
  url: "/v1/feed",
});
return res.feed.slice(1).map(item => item.id);

    If you really want to use forEach and not slice the feed, use the index parameter it passes to the callback:

    const idList = [];
res.feed.forEach((item, index) => {
  if(index > 0) idList.push(item.id);
});
return idList;
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  2. 0

    Try This One Example

    const ids = [1, 2, 3, 4, 5];
const newIds = ids.slice(1); // get a copy of the array from the second element to the end
console.log(newIds); // Output: [2, 3, 4, 5]
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