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get value by key of php object array


By : Yuxuan Huang
Date : October 17 2020, 03:08 PM
Any of those help I have a PHP object and I am trying to get the value by the key without using a foreach. , Personally I would prepare the data like this:
code :
$item_data_decode = json_decode($item_values, true);
$meta_array = array_combine(array_column($item_data_decode['meta_data'], 'key'), $item_data_decode['meta_data']);

if (!empty($meta_array['First Name'])) {
  $fName = $meta_array['First Name']['value'];
}


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How to update Array object index when i delete a array object item from array in angualrjs?


By : user20217
Date : March 29 2020, 07:55 AM
Hope that helps After you remove element you can use forEach() loop to change indexes.
code :
var item = [
{index:1, name: 'miraje'},
{index:2, name: 'alamin'},
{index:3, name: 'behestee'},
{index:4, name: 'arif'},
{index:5, name: 'riad'}
];

item.splice(1, 1)
item.forEach((e, i) => e.index = i + 1)
console.log(item)

Java create an array of object which the 40% of the array length should be object x the other 30% object z and 30% objec


By : Taylor.Lee
Date : March 29 2020, 07:55 AM
I hope this helps you . I want to create an array of object which the 40% of the array length should be object x ,the other 30% object z and 30% object y. so i generate random number for array length
code :
int numb = 10 + (int) (Math.random() * 20);
Object[] a = new Object[numb];
for (int i = 0; i < a.length; i++) {
    if (i < (int)(a.length * 0.4))
        a[i] = x;
    else if (i >= (int)(a.length * 0.4) && i < (int)(a.length * 0.7))
        a[i] = y;
    else
        a[i] = z;
}

Convert nested Array -> arrays -> object TO Array -> Object => object value : object value


By : user2109489
Date : March 29 2020, 07:55 AM
With these it helps You need to iterate the inner arrays as well and build a single array.
code :
var array = [{ EmployeeID: "100A", FirstName: "Downs", aval: [{ start: "11-19", end: "2", ava: "30", health: "4" }, { start: "11-20", end: "2", ava: "40", health: "4" }, { start: "11-21", end: "2", ava: "50", health: "4" }, { start: "11-22", end: "2", ava: "60", health: "4" }] }, { EmployeeID: "100B", FirstName: "Mckenzie", aval: [{ start: "11-19", end: "2", ava: "1", health: "4" }, { start: "11-20", end: "2", ava: "2", health: "4" }, { start: "11-21", end: "2", ava: "3", health: "4" }, { start: "11-22", end: "2", ava: "4", health: "4" }] }],
    result = array.reduce((r, { EmployeeID, aval }) => [
        ...r,
        ...aval.map(({ start, ava }) => ({ EmployeeID, [start]: ava }))
    ], []);

console.log(result);
.as-console-wrapper { max-height: 100% !important; top: 0; }

How do I `.filter()` an array/object and return a new array with the original keys and not as an indexed array/object as


By : Vincent Lee
Date : March 29 2020, 07:55 AM
I wish this help you , The truly FP way would be reduce with repeated object spread:
code :
const filtered = Object.values(obj).reduce((p, e) => (!e.isActive ? {...p, [e.user_id]: e} : p), {});
const obj = {
    111: {
        user_id: 111,
        user_name: "user111",
        isActive: 0
    }, 
    112: {
        user_id: 112,
        user_name: "use112",
        isActive: 1
    }, 
    113: {
        user_id: 113,
        user_name: "use113",
        isActive: 0
    }
};
const filtered = Object.values(obj).reduce((p, e) => (!e.isActive ? {...p, [e.user_id]: e} : p), {});
console.log(filtered);
.as-console-wrapper {
  max-height: 100% !important;
}
const filtered = Object.values(obj).reduce((newObj, e) => {
  if (!e.isActive) {
    newObj[e.user_id] = e;
  }
  return newObj;
}, {});
const obj = {
    111: {
        user_id: 111,
        user_name: "user111",
        isActive: 0
    }, 
    112: {
        user_id: 112,
        user_name: "use112",
        isActive: 1
    }, 
    113: {
        user_id: 113,
        user_name: "use113",
        isActive: 0
    }
};
const filtered = Object.values(obj).reduce((newObj, e) => {
  if (!e.isActive) {
    newObj[e.user_id] = e;
  }
  return newObj;
}, {});
console.log(filtered);
.as-console-wrapper {
  max-height: 100% !important;
}
const filtered = {};
for (const e of Object.values(obj)) {
  if (!e.isActive) {
    filtered[e.user_id] = e;
  }
}
const obj = {
    111: {
        user_id: 111,
        user_name: "user111",
        isActive: 0
    }, 
    112: {
        user_id: 112,
        user_name: "use112",
        isActive: 1
    }, 
    113: {
        user_id: 113,
        user_name: "use113",
        isActive: 0
    }
};
const filtered = {};
for (const e of Object.values(obj)) {
  if (!e.isActive) {
    filtered[e.user_id] = e;
  }
}
console.log(filtered);
.as-console-wrapper {
  max-height: 100% !important;
}

How to compare object array inside object array and remove duplicate object in Javascript?


By : PPP
Date : March 29 2020, 07:55 AM
seems to work fine You can maintain a dictionary of visited group, while looping through each department groups. so that you can easily identify the duplicate and remove it from array. Here i used slice() to make a copy of the department array, since we are modifying the original array inside loop.
code :
const arr = {
  "departsObj": {
    "departments": [{
        "department": [{
            "groupID": "21",
            "groupName": "group21",
            "requestDate": "2020-01-24",
          },
          {
            "groupID": "28",
            "groupName": "group28",
            "requestDate": "2020-01-24",
          }
        ]
      },
      {
        "department": [{
            "groupID": "28",
            "groupName": "group28",
            "requestDate": "2020-01-24",
          },
          {
            "groupID": "20",
            "groupName": "group20",
            "requestDate": "2020-01-24",
          },
          {
            "groupID": "30",
            "groupName": "group30",
            "requestDate": "2020-01-24",
          }
        ]
      }
    ]
  }
};

const {
  departments
} = arr.departsObj;


// to persist the list of group visited while looping
const visited = {};

departments.forEach(({
  department
}) => {
  // make a copy, since we are modifying the original array inside the loop
  department.slice().forEach((group) => {
    // if group is visited already, remove it
    if (visited[group.groupID]) {
      const index = department.indexOf(group);
      department.splice(index, 1);
    } else {
      // mark the group as visited
      visited[group.groupID] = 1;
    }
  });
});

console.log(arr);
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