When there is nothing to return in a function, you can use the : symbol (colon) followed by the keyword void after the parameters brackets of a function in TypeScript.
TL;DR
// logs string to the console
// The void keyword is to denote
// that the function doesn't
// return anything
function log(str: string): void {
console.log(str);
}
For example, let's say we want to create a function where we need to only log the string to the console. Here the function doesn't have a return statement.
It can be done like this,
// logs string to the console
function log(str: string) {
console.log(str);
}
Since the function doesn't have a return statement we can use the void keyword after the parameters brackets to denote that the function doesn't return anything.
It can be done like this,
// logs string to the console
// The void keyword is to denote
// that the function doesn't
// return anything
function log(str: string): void {
console.log(str);
}
See the above code live in codesandbox.
That's all 😃!
