Question

How to find the index of the first element in an int array that passes a test in TypeScript

Answer 1

const arr: number[] = [50, 60, 75, 93, 101, 82, 96];
   
function checkValue(val: number) : boolean{
    return val >= 80;
} 
   
console.log(arr.findIndex(checkValue));
   
   
   
/*
   
run:
   
3
   
*/

 

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