The first one is when we have an array holds regular elements like strings and I know how to use Includes on it.
But how about arrays holding objects as their element? How can I check if there is a certain value in those objects?
const arr = ['this', 'is', 'a test'];
console.log(arr.includes('this'));
const arr2 = [
{ id: '123', name: 'Alex' },
{ id: '345', name: 'Dan' },
{ id: '33', name: 'Joe' },
];You can use the some function.
const arr2 = [
{ id: '123', name: 'Alex' },
{ id: '345', name: 'Dan' },
{ id: '33', name: 'Joe' },
];
console.log(arr2.some(item => item.name==="this" ))
The some() method tests whether at least one element in the array passes the test implemented by the provided function.
if you want a returned array of values that match = >
const filtered = arr2.filter((item)=>item.name == 'value')
if you want bool(true||false) =>
const filtered = arr2.filter((item)=>item.name == 'value').length > 0
or using some as mentioned above.