firebase - Return a $firebaseArray of objects that contain a sub-value -


i want return $firebasearray of records contain particular value without knowing parent id.

firebase db

so in case, want objects under 'challenges' contain id pictured above starting lnf.

i have tried using orderbychild , equalto, again seems requiring knowing parent id. there way around this?

if want key cpjip3tve1q067qzx6p0vij0k1|1try this:

var key = "cpjip3tve1q067qzx6p0vij0k1|1";  child in snapshot.children {     if child.key == key {         data     } }

you can use loop on of children under "challenges"


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