Motoko syntax is very stange

Developers Language Support
1

I am new in Motoko language an I am trying to remove a specific item in the array but I didn’t fine a simple method like remove, delete

delete array[5];

can anyone help
Can I use another language insted of motoko such as javascript,C#…

2

The Motoko base library is pretty barebones right now, but I’m surprised I can’t find anything in the Array functions that allows for simple deletion like that, either by index or by value. Seems like a fairly obvious oversight. Maybe someone can chime in with a better way, but you could remove an item by filtering the array into a new one:

public func remove(array: [Text], value: Text) : [Text] {
    Array.filter(array, func(val: Text) : Bool { value != val });
}

Or possibly slicing the array to avoid the item at the desired index, but I’m not sure if array slicing is even possible in Motoko.

3

Yes, Array.filter works, but since array is fixed-length, inserting/deleting an element from an array takes linear time. You can use Buffer or List from the base library for efficient insertion and deletion.

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4

^ @ThanasisNta (this is along a similar line to your last DM).

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