/TypeScript/Element implicitly has an 'any' type because expression of type 'string' can't be used to index type

Element implicitly has an 'any' type because expression of type 'string' can't be used to index type

Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'. No index signature with a parameter of type 'string' was found on type '{}'.ts(7053)

//This will fail typecheck
const map = {};
map[someString] = "hello";

//This will pass typecheck
const map: {[key:string]: string} = {};
map[someString] = "hello";

Source: stackoverflow.com

Element implicitly has an 'any' type because expression of type 'string' can't be used to index type

interface IObjectKeys {
  [key: string]: string | number;
}

interface IDevice extends IObjectKeys {
  id: number;
  room_id: number;
  name: string;
  type: string;
  description: string;
}

Source: stackoverflow.com

Element implicitly has an 'any' type because expression of type 'string' can't be used to index type

tsconfig.json

 "compilerOptions": {
   	...
    "noImplicitReturns": true,
    "noImplicitAny": false,
    ...
 }

Element implicitly has an 'any' type because expression of type 'string' can't be used to index type { }. No index signature with a parameter of type 'string' was found on type '{ develop: string; staging: string; production: string; }'.ts(7053)

const DNATranscriber = {
    G: 'C',
    C: 'G',
    T: 'A',
    A: 'U'
};

export default class Transcriptor {
    toRna(dna: string) {
        const codons = [...dna];
        if (!isValidSequence(codons)) {
            throw Error('invalid sequence');
        }
        const transcribedRNA = codons.map(codon => DNATranscriber[codon]);
        return transcribedRNA;
    }
}

function isValidSequence(values: string[]): values is Array<keyof typeof DNATranscriber> {
    return values.every(isValidCodon);
}
function isValidCodon(value: string): value is keyof typeof DNATranscriber {
    return value in DNATranscriber;
}

Source: stackoverflow.com

Similar codes

1 vote229 views2 answers
When i console log a obj its printing object
TypeScript
0 vote214 views1 answer
Array of objects create common key as a property and create array of objects
TypeScript
0 vote187 views1 answer
____________ determines the time spent in various parts of the unit.
TypeScript
0 vote200 views1 answer
How to get label for points from a column in dataframe for scatter plot in python
TypeScript
0 vote196 views1 answer
Uat testing vs system testing
TypeScript
0 vote384 views2 answers
React native elements input phone number max characters
TypeScript
0 vote196 views1 answer
OSError: [E941] Can't find model 'en'. It looks like you're trying to load a model from a shortcut, which is deprecated as of spaCy v3.0. To load the model, use its full name instead:
TypeScript
0 vote227 views1 answer
Inteface method extension angular
TypeScript
0 vote193 views2 answers
Distance between two points latitude longitude c#
TypeScript
0 vote187 views2 answers
Unique list typescript
TypeScript