I am encountering an issue with the array.findIndex method. Despite being certain that there is a match in the array I am searching through, findIndex consistently returns -1.
let index = state.bag.findIndex((it) => {
it.id === item.id
console.log(it.id,it.id===item.id,item.id);
})
console.log(index);
When checking the console logs, the following results are displayed:
00SEEB0BASU900XS false 00SEEB0BASU900S index.js:48
00SEEB0BASU900S true 00SEEB0BASU900S index.js:48
00SEEB0BASU900M false 00SEEB0BASU900S index.js:48
00SEEB0BASU900L false 00SEEB0BASU900S index.js:48
00SEEB0BASU900XL false 00SEEB0BASU900S index.js:48
00SEEB0BASU900XXL false 00SEEB0BASU900S index.js:48
-1 index.js:50
The log clearly shows that there is a truthy value present, indicating that the index of the object array should be returned.
Despite trying various solutions, I am still stuck on this problem and would appreciate any assistance.
EDIT:
After adding the RETURN statement, the issue was resolved. However, for learning purposes, I noticed that the MDN example for findIndex did not include a RETURN statement.
const fruits = ["apple", "banana", "cantaloupe", "blueberries", "grapefruit"];
const index = fruits.findIndex(fruit => fruit === "blueberries");
console.log(index); // 3
console.log(fruits[index]); // blueberries