Can the parameters of the callback function be accessed within the 'outer' function?
function f(callback: (par1: string)=>void): void {
// Is it possible to access 'par1' here?
}
Can the parameters of the callback function be accessed within the 'outer' function?
function f(callback: (par1: string)=>void): void {
// Is it possible to access 'par1' here?
}
function myFunction(callback: (parameter1: string)=>void): void {
// How can I access 'parameter1' here?
}
Unfortunately, you cannot access the value of 'parameter1' directly within the function. The responsibility lies with the function myFunction to provide that value when calling the callback function.
function myFunction(callback: (parameter1: string)=>void): void {
callback("1"); //callback is invoked with value "1"
callback("hello world"); //callback is invoked with value "hello world"
}
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