I have a list of array something like this:
//model.ts
export class Item{
name: string;
age: string;
Id: number;
}
export class TempArray{
[key : string] : PubMedDetails[];
}
//component.ts
listOfItems: Item[] = []
listOfTempArray: TempArray[] = [];
listOfTempArray ={
'class2':{'name': 'abc', 'age': 'ten', 'Id': 3398},
'class3':{'name': 'Radha','age': 'two', 'Id': 9876},
'class4':{'name': 'hjgf', 'age': 'five', 'Id': 8766}
}
FetchData() {
let che: keyof TempArray = 'Radha' //I will be receiving this value from UI as ngModel
//trying to assign Radha's details to listOfItems
this.listOfItems = this.listOfTempArray[che] //line 4
this.listOfItems.forEach(x => {
if (this.listOfDiseaseNames.indexOf(x.names.toLowerCase()) == -1) { //line 7
this.listOfDiseaseNames.push(x.names.toLowerCase()) //line 8
}
})
}
tempArray = {
'class2':{'name': 'abc', 'age': 'ten', 'Id': 3398},
'class3':{'name': 'gg', 'age': 'two', 'Id': 9876},
'class4':{'name': 'hjgf', 'age': 'five', 'Id': 8766}
}
in Typescript v4.4 (angular 13) how do I get the values of class4 by passing 'class4'(string) as key
Errors I am getting: in line 4 :Element implicitly has an 'any' type because index expression is not of type 'number'. in line 7 and 8 : Argument of type 'string' is not assignable to parameter of type 'never'
Here you initialize listOfTempArray as array of TempArray:
listOfTempArray: TempArray[] = [];
But later you refer to it as it was of type TempArray, not TempArray[]
FetchData() {
let che: keyof TempArray = 'Radha' //I will be receiving this value from UI as ngModel
//trying to assign Radha's details to listOfItems
this.listOfItems = this.listOfTempArray[che] // here should be either this.listOfTempArray[index][che] for TempArray[] type OR this.listOfTempArray[che], but with TempArray type
this.listOfItems.forEach(x => {
if (this.listOfDiseaseNames.indexOf(x.names.toLowerCase()) == -1) { //line 7
this.listOfDiseaseNames.push(x.names.toLowerCase()) //line 8
}
})
}
Line 7 and 8 errors should disappear when you resolve line 4 error.