How to manipulate this array to get the following Cartesian product? Seek efficient method

//
const spec = [
  { label: "", content: ["", "", ""] },
  { label: "", content: ["", "", ""] },
  { label: "", content: ["", "", ""] }
];

//specdatas,spec0spec1spec2spec27

const datas = [
  {
    spec0: "",
    spec1: "",
    spec2: ""
  },
  {
    spec0: "",
    spec1: "",
    spec2: ""
  },
  {
    spec0: "",
    spec1: "",
    spec2: ""
  },
  {
    spec0: "",
    spec1: "",
    spec2: ""
  },
  {
    spec0: "",
    spec1: "",
    spec2: ""
  },
  {
    spec0: "",
    spec1: "",
    spec2: ""
  },
  {
    spec0: "",
    spec1: "",
    spec2: ""
  },
  {
    spec0: "",
    spec1: "",
    spec2: ""
  },
  {
    spec0: "",
    spec1: "",
    spec2: ""
  }
  //.....
];
Javascript html5 node.js php python
Jun.20,2022 


<?php<br>//<br>$sets = [


['', '', ''],
['', '', ''],
['', '']


]; 


 function fuck ($sets) 
 {


// 
$result = [];
// 
for ($i = 0, $count = count($sets); $i < $count - 1; $iPP) {
    // 
    if ($i == 0) {
        $result = $sets[$i];
    }
    // 
    $tmp = [];
    // 
    foreach ($result as $res) {
        foreach ($sets[$i + 1] as $set) {
            $tmp[] = $res . $set;
        }
    }
    // 
    $result = $tmp;
}

return $result;


} 


 var_dump (fuck ($sets));

Previous: Element UI's Cascader cascade selector, when options is an empty array, the drop-down box shows the problem

Next: The blog source code uploaded to the github remote library becomes the foreground mode.

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e99a0a-1773.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e99a0a-1773.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?