如何在阵列中找到具有特定特征的第一个元素？

For example if you are searching through an array that deals with parts and you are trying to find the first element in that array that has a certain weight. Like if the weight was 10 and in the parts array the first element(part) had a weight of 15 and the second element(part) had a weight of 10 it would return that element. These are the methods that I used.I need to make another method though and I think I might need to call one of these.For example if you are searching through an arr