javascript join array

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TC5550 answered on March 17, 2020 Popularity 10/10 Helpfulness 4/10

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javascript join array

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var array = ["Joe", "Kevin", "Peter"];
array.join(); // "Joe,Kevin,Peter"
array.join("-"); // "Joe-Kevin-Peter"
array.join(""); // "JoeKevinPeter"
array.join(". "); // "Joe. Kevin. Peter"

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Contributed on May 20 2020

TC5550

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javascript join

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// join an array together into a string

// array for the .join() method
let numbers = [3, 1, 6]

let string = numbers.join(', ') // returns '3, 1, 6'

// Also works the same just for an array of STRINGS

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Contributed on Oct 10 2022

Nicholas Greiner

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js join

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//turns array to string

const elements = ['Fire', 'Air', 'Water'];

console.log(elements.join());
// expected output: "Fire,Air,Water"

console.log(elements.join(''));
// expected output: "FireAirWater"

console.log(elements.join('-'));
// expected output: "Fire-Air-Water"

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Contributed on Mar 17 2020

mikelikestocode

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join method of array in JavaScript

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//The join() method also joins all array elements into a string.

const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.join(" * ");
// result :  Banana * Orange * Apple * Mango


//if you find this answer is useful ,
//upvote ⇑⇑ , so can the others benefit also . @mohammad alshraideh ( ͡~ ͜ʖ ͡°)

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Contributed on Aug 13 2022

Mohammad alshraideh

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js join

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const elements = ['Fire', 'Air', 'Water'];

console.log(elements.join());
// expected output: "Fire,Air,Water"

console.log(elements.join(''));
// expected output: "FireAirWater"

console.log(elements.join('-'));
// expected output: "Fire-Air-Water"

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Contributed on Apr 01 2020

Impossible Iguana

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join in array

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var a = ['Wind', 'Water', 'Fire'];
a.join();      // 'Wind,Water,Fire'
a.join(', ');  // 'Wind, Water, Fire'
a.join(' + '); // 'Wind + Water + Fire'
a.join('');    // 'WindWaterFire'

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Contributed on Sep 28 2020

kepl3r

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join javascript array

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const cities = ['London', 'Paris', 'Tokyo'];
const joinedCities = cities.join('-');

console.log(joinedCities); // London-Paris-Tokyo

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Contributed on May 31 2021

Mysterious Monkey

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join array javascript

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<html>
  <select multiple class="select-colors">
    <option>blue</option>
    <option>green</option>
  </select>
</html>  

<script>
  var myColorSelect = $(".select-colors").val().join();
  
 console.log(myColorSelect);
</script>

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Contributed on Oct 08 2020

Salarizadi

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join array javascript

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const data = [
  {
    id: 1,
    name: "adam",
    age: 19
  },
  {
    id: 2,
    name: "Ollie",
    age: 20
  }
];

const _data = [
  {
    id: 2,
    subject: "English"
  }
];

const newData = data.map((item) => {
  const matchingItem = _data.find((element) => element.id === item.id);
  return {
    ...item,
    ...matchingItem
  };
});

console.log(newData);

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Contributed on Jan 14 2024

Adam, the developer

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javascript join array

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