Typescript declaring null

interface Employee1 {
    name: string;
    salary: number;
}

var a: Employee1 = { name: 'Bob', salary: 40000 }; // OK
var b: Employee1 = { name: 'Bob' }; // Not OK, you must have 'salary'
var c: Employee1 = { name: 'Bob', salary: undefined }; // OK
var d: Employee1 = { name: null, salary: undefined }; // OK

// OK
class SomeEmployeeA implements Employee1 {
    public name = 'Bob';
    public salary = 40000;
}

// Not OK: Must have 'salary'
class SomeEmployeeB implements Employee1 {
    public name: string;
}

-1

Source: stackoverflow.com

Similar codes

0 vote321 views1 answer
Angular redirect on submit
TypeScript
1 vote307 views1 answer
Promise.all does not wait
TypeScript
0 vote341 views1 answer
Could not read Username for 'https://github.com': terminal prompts disabled
TypeScript
0 vote334 views1 answer
Local Variable in Jenkins
TypeScript
2 votes396 views2 answers
Get documents path c#
TypeScript
1 vote329 views1 answer
React native image picker launch camera example
TypeScript
0 vote334 views1 answer
Tss from gene granges
TypeScript
1 vote358 views2 answers
How to get all elements of column in pandas dataframe
TypeScript
0 vote330 views2 answers
Serve images in nextgen formats webp
TypeScript
0 vote311 views1 answer
Get enum key typescript
TypeScript