coinselect | unspent transaction output selection module | Cryptography library
kandi X-RAY | coinselect Summary
kandi X-RAY | coinselect Summary
An unspent transaction output (UTXO) selection module for bitcoin. WARNING: Value units are in satoshis, not Bitcoin.
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QUESTION
im trying to build a list you can add and delete components from.
Adding works but when i try to delete an item, every item that comes after that also gets deleted. I found that the length of the use state array i use varies depending on which item i click delete on.
...ANSWER
Answered 2021-Apr-10 at 23:40It sounds like you're only passing down the DeleteAlertingChoice
when initially putting the new into state, so when it gets called, the length is the length it was when that component was created, and not the length the current state is.
This also causes the problem that the DeleteAlertingChoice
that a component closes over will only have the Alerts
it closes over from the time when that one component was created - it won't have the data from further alerts.
These problems are all caused by one thing: the fact that you put the components into state. Don't put components into state, instead transform state into components only when rendering.
QUESTION
Sorry in advance if this is a stupid question. I'm really new to this.
So I'm trying to make a simple app that shows the current bitcoin price for a specific currency chosen by the user.
First I prepare the URL:
...ANSWER
Answered 2020-Apr-17 at 10:28You should not access a dictionary with an index such as [1]
. The elements in a dictionary have no guaranteed order. Today, the elements are ordered USD, GBP, but tomorrow, it might be GBP, USD. They are still technically the same dictionary. Therefore, you should always use the dictionary's Key
to access it. e.g. ["GBP"]
.
From the context of the question, it seems like what you want to do is to get the user-selected currency, but the API will always give a rate for USD for reference.
In didSelectRow
, you assigned the selected currency to coinSelected
, so you can just use coinSelected
as the key:
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