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match element in array based on other property mongo

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Clear Cow answered on August 28, 2021 Popularity 1/10 Helpfulness 1/10

answer match element in array based on other property mongo

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match element in array based on other property mongo

Comment

# need to use $filter
# let's say you have $owners array and an $ownerID on the same document due to lookups
# you want to match the owner in the owners array based on the ownerID
{
  $addFields: {
    matchedOwner: {
      $filter: {
        input: "$owners",
        as: "owner",
        cond: { $eq: ["$$owner.id", "ownerID"] },
      }
    }
  }
}

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: element javascript match

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Contributed on Sep 18 2024

Clear Cow

0 Answers Avg Quality 2/10

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javascript loop array

Comment

const numbers = [1, 2, 3, 4, 5];

for (i = 0; i < numbers.length; i++) {
  console.log(numbers[i]);
}

Popularity 10/10 Helpfulness 7/10 Language javascript

Source: www.freecodecamp.org

Tags: javascript j

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Contributed on Aug 29 2022

Alexander Ramirez

0 Answers Avg Quality 2/10

javascript loop array

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/* new options with IE6: loop through array of objects */

const people = [
  {id: 100, name: 'Vikash'},
  {id: 101, name: 'Sugam'},
  {id: 102, name: 'Ashish'}
];

// using for of
for (let persone of people) {
  console.log(persone.id + ': ' + persone.name);
}

// using forEach(...)
people.forEach(person => {
 console.log(persone.id + ': ' + persone.name);
});
// output of above two methods
// 100: Vikash
// 101: Sugam
// 102: Ashish


// forEach(...) with index
people.forEach((person, index) => {
 console.log(index + ': ' + persone.name);
});
// output of above code in console
// 0: Vikash
// 1: Sugam
// 2: Ashish

Popularity 8/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Jan 29 2022

Happy Heron

0 Answers Avg Quality 2/10

javascript loop array

Comment

var arr = [1, 2, 3, 4, 5];
 
for (var i = arr.length - 1; i >= 0; i--) {
    console.log(arr[i]);
}

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: www.techiedelight.com

Tags: javascript j

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Contributed on Mar 29 2022

Long Kevin

0 Answers Avg Quality 2/10

JavaScript loop Array

Comment

var min = arr[0];
var max = arr[0];

for(var i=1; i<arr.length; i++){
	if(arr[i] < min){
		min = arr[i];
}
	if(arr[i] > max){
		max = arr[i];
}


return [min, max];
}

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: www.hackerhero.com

Tags: javascript

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Contributed on Jun 11 2022

jonathan orcales

0 Answers Avg Quality 2/10

javascript loop array

Comment

let arr = [1, 2, 3, 4]
for (let i = 0; i < arr.length; i++) {
console.log(arr[i])
}

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 01 2022

Vivacious Vulture

0 Answers Avg Quality 2/10

javascript loop array

Comment

array.map((e)=>{
return(<h1>e.objectfieldName</h1>)
})

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 24 2022

HISHAM Ismail

0 Answers Avg Quality 2/10

JAVASCRIPT LOOP ARRAY

Comment

You may assume that the sequence is always correct, i.e., every booked room was previously free, and every freed room was previously booked.

In case, 2 rooms have been booked the same number of times, you have to return Lexographically smaller room.

A string 'a' is lexicographically smaller than a string 'b' (of the same length) if in the first position where 'a' and 'b' differ, string 'a' has a letter that appears earlier in the alphabet than the corresponding letter in string 'b'. For example, "abcd" is lexicographically smaller than "acbd" because the first position they differ in is at the second letter, and 'b' comes before 'c'.

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: www.codingninjas.com

Tags: javascript j

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Contributed on Aug 28 2021

Blue-eyed Bison

0 Answers Avg Quality 2/10

javascript loop array

Comment

var arr = ['a', 'b', 'c'];

arr.forEach(item => {
	console.log(item);
});

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: codeit.codes

Tags: javascript j

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Contributed on Feb 04 2022

Troubled Tarsier

0 Answers Avg Quality 2/10

JavaScript loop array

Comment

var temp = [];

for(var i=0; i<arr1.length; i++){
	temp.push(arr1[i]);
}

for(var i=0; i<arr2.length; i++){
	temp.push(arr2[i]);
}
console.log('temp is now', temp);
return temp;
}

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: www.hackerhero.com

Tags: javascript j

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Contributed on Jun 14 2022

jonathan orcales

0 Answers Avg Quality 2/10

javascript loop array

Comment

array.forEach(el => {
	console.log(el);
})

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Feb 06 2022

Easy Earthworm

0 Answers Avg Quality 2/10

match element in array based on other property mongo

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match element in array based on other property mongo

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