如何在javascript中检查数组是否在增加？

function isArrayIncreasing(arr) {
  for (let i = 1; i < arr.length; i++) {
    if (arr[i] <= arr[i - 1]) {
      return false;
    }
  }
  return true;
}

// 示例
console.log(isArrayIncreasing([1, 2, 3, 4])); // 输出: true
console.log(isArrayIncreasing([1, 2, 2, 4])); // 输出: false

function isArrayIncreasing(arr) {
  return arr.reduce((prev, curr) => {
    if (curr <= prev) return false;
    return curr;
  }, -Infinity);
}

// 示例
console.log(isArrayIncreasing([1, 2, 3, 4])); // 输出: true
console.log(isArrayIncreasing([1, 2, 2, 4])); // 输出: false

function isArrayIncreasing(arr) {
  return arr.every((value, index, array) => index === 0 || value > array[index - 1]);
}

// 示例
console.log(isArrayIncreasing([1, 2, 3, 4])); // 输出: true
console.log(isArrayIncreasing([1, 2, 2, 4])); // 输出: false