We convert List<Customer> into Map using fromIterable() constructor . var map1 = Map. fromIterable(list, key: (e) => e.name, value: (e) => e.16 Mar 2022
Read moreHow do I get data from instance in flutter?
This recipe uses the following steps:
Read moreWhat is parse flutter?
Parses a string containing a number literal into a number . The method first tries to read the input as integer (similar to int. parse without a radix). If that fails, it tries to parse the input as a double (similar to double.
Read moreHow do I write a JSON file in flutter?
Simple example fromJson(Map<String, dynamic> json) : this. value = json[‘value’]; Map<String, dynamic> toJson() => {‘value’: value}; } … JsonStore jsonStore = JsonStore(); CounterModel counter; loadFromStorage() async { Map<String, dynamic> json = await jsonStore. getItem(‘counter’); counter = json !=
Read moreWhat does JSON decode do flutter?
Parses the string and returns the resulting Json object . The optional reviver function is called once for each object or list property that has been parsed during decoding.
Read moreWhat does JSON decode do flutter?
Parses the string and returns the resulting Json object . The optional reviver function is called once for each object or list property that has been parsed during decoding.
Read more