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Conditionally add elements to an array

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Gimnath Priyadarshana Perera answered on April 19, 2022 Popularity 9/10 Helpfulness 4/10

answer Conditionally add elements to an array

related js add to array conditionally

related js add an array element conditionally

Conditionally add elements to an array

Comment

const cond = false;
const arr = [
  ...(cond ? ['a'] : []),
  'b',
];

>> ['b']

Popularity 9/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: add elements javascript

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Contributed on Jul 20 2022

Gimnath Priyadarshana Perera

0 Answers Avg Quality 2/10

Closely Related Answers

js add to array conditionally

Comment

const cond = false;
const arr = [
  ...(cond ? ['a'] : []),
  'b',
];
// result: 
//if cond true: ['a','b']
//if cond false: ['b']

// from https://2ality.com/2017/04/conditional-literal-entries.html

Popularity 9/10 Helpfulness 7/10 Language javascript

Source: Grepper

Tags: add

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Contributed on Apr 19 2022

cemysf

0 Answers Avg Quality 2/10

js add an array element conditionally

Comment

// Will result in ['foo', 'bar']
const items = [
  'foo',
  ... true ? ['bar'] : [],
  ... false ? ['falsy'] : [],
]

console.log(items)
 Run code snippet

Popularity 8/10 Helpfulness 3/10 Language javascript

Source: stackoverflow.com

Tags: add element javascript javas

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