debugger Statement Usage

What debugging strategy is implemented in this loop?

function processArray(arr) {
  for (let i = 0; i < arr.length; i++) {
    if (typeof arr[i] !== 'number') {
      debugger;
    }
    // Process item
  }

Performance monitoring
Type checking validation
This code implements a type-checking debugging strategy: 1) Breaks only when a non-number value is encountered, 2) Allows inspection of problematic array elements, 3) Helps identify data validation issues, 4) Efficient for debugging large arrays, 5) Focuses debugging on specific conditions, 6) Combines validation with debugging, 7) Useful for finding data inconsistencies, 8) Common pattern for debugging data processing functions.
Loop optimization
Array bounds checking

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