i have errors in Ln12 import 'package:flutter/material.dart'; import 'package:google_maps_flutter/google_maps_flutter.dart'; import '../models/place.dart'; class MapScreen extends StatefulWidget { final PlaceLocation initialLocation; final bool isSelecting; MapScreen({ this.initialLocation = con...
Setting Parameter Values in Remote Configuration Fetching Parameter Values from Remote Configuration SDK Data Security Web SDK Version Change History Development Process Integrating the SDK Initializing Remote Configuration Setting In-app Default Parameter Values Setting Parameter V...
在optional chaining内部传递参数的方法是使用函数调用。Optional chaining是一种在访问深层嵌套对象属性时,避免出现"Cannot read property 'xxx' ...
'Bob','Carol'];constperson=people.find(name=>name.startsWith(letter));returnhello(person);// This is the error:// Argument of type 'string | undefined' is not assignable to// parameter of type 'string'.// Type 'undefined' is not assignable to type...
Use case DropdownMenu icons Actually, both icons (leading and trailing) are optional but we can only "hide" leadingIcon by not passing it as parameter, if not passed, there will not be a default leadingIcon. For trailingIcon, there is a ...