eachSpread

迭代集合中的内容，不改变原集合的同时将其传递到回调函数中，通常用于二维数组的循环，在回调函数中给值命名。

collect([
  ["banners", 45, "California"],
  ["apples", 20, "Florida"],
  ["coconuts", 60, "Texas"],
])->eachSpread(function ($product, $qty, $location) {
  dump("We have {$product} {$qty} in our {$location} store.");
});

// "We have banners 45 in our California store."
// "We have apples 20 in our Florida store."
// "We have coconuts 60 in our Texas store."

中断迭代

跟 each 方法的使用一致，也可以在回调函数中编写逻辑，当返回 false 后会停止循环。

collect([
  ["banners", 45, "California"],
  ["apples", 20, "Florida"],
  ["coconuts", 60, "Texas"],
])->eachSpread(function ($product, $qty, $location) {
  if ($qty === 20) {
    return false;
  }
  dump("We have {$product} {$qty} in our {$location} store.");
});

// "We have banners 45 in our California store."

可以看到当在回掉函数中当返回 false 时，循环终止。

相关方法

• each
• map
• mapSpread