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Asked: 2024-11-28T08:03:08+00:00

How to conditionally select array or array of objects in Javascript ?

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If you have ever come across a use case where you have multiple arrays like below, 

const array1 = [1,2,3]; const array2 = [4,5,6]; const array3 = [{ a: 1 }, { b: 2 }];
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What if you want the resultant array to conditionally include one or more arrays, one way to do it 

const arrayWeWant = [];  if(condition1) {  arrayWeWant.push(array1); }  if(condition2) {  arrayWeWant.push(array2); }  if(condition3) {  arrayWeWant.push(array3); }
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well that's not a bad approach, but we can do better 

const arrayWeWant = [   ...(condtion1 ? array1 : []),   ...(conditon2 ? array2 : []),   ...(conditon3 ? array3 : []) ];
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It's a much cleaner way isn't it.

Happy to share!😊

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