如何通过一个值在纯JavaScript中获取数组的多个索引(值精确匹配)

function getIndexes(arr, value) {
  var indexes = [];
  for (var i = 0; i < arr.length; i++) {
    if (arr[i] === value) {
      indexes.push(i);
    }
  }
  return indexes;
}

var array = [1, 2, 3, 4, 2, 5, 2];
var value = 2;
var indexes = getIndexes(array, value);
console.log(indexes); // 输出 [1, 4, 6]

function getIndexes(arr, value) {
  return arr.reduce(function(indexes, element, index) {
    if (element === value) {
      indexes.push(index);
    }
    return indexes;
  }, []);
}

var array = [1, 2, 3, 4, 2, 5, 2];
var value = 2;
var indexes = getIndexes(array, value);
console.log(indexes); // 输出 [1, 4, 6]