How to clean up code by using default function parameters #shorts

When writing a javascript function, it's often useful to have parameters be defaulted to a certain value instead of letting them default to undefined.

#shorts

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[haiderimam]

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[WhereRickyTanAt]

How can you do this with multiple default parameters? If I just want to update of them?

const f = (a, b=2, c=3) …..

f(1, c=4)

How would you do this?

[bvaroni]

if age = 0, then age = 10 with that !age constructon there. To avoid falsy use ??
age = age ?? DEFAULT_AGE

[wumbl]

not if you're using an array as a default parameter though cause different function calls will share it.

[lucanthony]

how do you clean code by chaging 4 to 5 variables to one single function ?