JAVASCRIPT -读取本地文件，筛选单词并打印word行

// HTML
<input type="file" id="fileInput">

// JavaScript
document.getElementById('fileInput').addEventListener('change', function(e) {
  var file = e.target.files[0];
  var reader = new FileReader();

  reader.onload = function(e) {
    var fileContent = e.target.result;
    var words = fileContent.split(/\s+/); // 使用空白字符分割文本字符串为单词数组

    for (var i = 0; i < words.length; i++) {
      var word = words[i];
      if (word === 'word') {
        console.log(word);
        console.log('Line:', getLineNumber(fileContent, i));
      }
    }
  };

  reader.readAsText(file);
});

function getLineNumber(text, index) {
  var lines = text.split('\n');
  var count = 0;
  for (var i = 0; i < lines.length; i++) {
    count += lines[i].length + 1;
    if (count > index) {
      return i + 1;
    }
  }
}