I have the below code
const a = [1,2];
const b = a;
b.push(3);
console.log(a); //[1,2,3]
console.log(b); //[1,2,3]
Can anyone explain me what happens here and how I can only mutate "b" array instead of adding "3" to array "a"
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P.N.Jayasinghe
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1Make a copy of the array instead of referencing the original one – CertainPerformance May 12 '22 at 23:34
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const b = [...a] use of spread operator resolved my question. Above comment helped me lot. Thanks – P.N.Jayasinghe May 12 '22 at 23:47