const fs = require('fs');
const content = fs.readFileSync('./dist/assets/index-D9sWWWv_.js', 'utf8');

let idx = 0;
console.log("=== Matches for Is( ===");
while (true) {
  idx = content.indexOf("Is(", idx);
  if (idx === -1) break;
  console.log(`At index ${idx}:`);
  console.log(content.substring(idx - 100, idx + 200));
  console.log('------------------');
  idx += "Is(".length;
}
