findIndex and findLastIndex method in javascript | findIndex vs findLastIndex | array interview #7

In JavaScript, both findIndex and findLastIndex are array methods used to search for an element based on a condition, but they differ in the direction in which they search through the array.

findIndex
Definition: The findIndex method returns the index of the first element in the array that satisfies a provided testing function.
Search Direction: It starts from the beginning (index 0) of the array.
Return Value: The index of the first element that passes the test function. If no element is found, it returns -1.

findLastIndex
Definition: The findLastIndex method returns the index of the last element in the array that satisfies a provided testing function.
Search Direction: It starts from the end of the array and works backward towards the beginning.
Return Value: The index of the last element that passes the test function. If no element is found, it returns -1.

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