Deferred
A Deferred Promise that can be resolved or rejected elsewhere in the code.
Extends
Promise<T>
Type Parameters
• T
• Err = Error
Methods
catch()
catch<
TResult>(onrejected?):Promise<T|TResult>
Attaches a callback for only the rejection of the Promise.
Type Parameters
• TResult = never
Parameters
onrejected?
The callback to execute when the Promise is rejected.
null | (reason) => TResult | PromiseLike<TResult>
Returns
Promise<T | TResult>
A Promise for the completion of the callback.
Inherited from
Promise.catch
finally()
finally(
onfinally?):Promise<T>
Attaches a callback that is invoked when the Promise is settled (fulfilled or rejected). The resolved value cannot be modified from the callback.
Parameters
onfinally?
The callback to execute when the Promise is settled (fulfilled or rejected).
null | () => void
Returns
Promise<T>
A Promise for the completion of the callback.
Inherited from
Promise.finally
then()
then<
TResult1,TResult2>(onfulfilled?,onrejected?):Promise<TResult1|TResult2>
Attaches callbacks for the resolution and/or rejection of the Promise.
Type Parameters
• TResult1 = T
• TResult2 = never
Parameters
onfulfilled?
The callback to execute when the Promise is resolved.
null | (value) => TResult1 | PromiseLike<TResult1>
onrejected?
The callback to execute when the Promise is rejected.
null | (reason) => TResult2 | PromiseLike<TResult2>
Returns
Promise<TResult1 | TResult2>
A Promise for the completion of which ever callback is executed.
Inherited from
Promise.then
Properties
[toStringTag]
readonly[toStringTag]:string
Inherited from
Promise.[toStringTag]
reject()
reject: (
error) =>void
Parameters
error
Err
Returns
void
resolve
resolve:
Textendsvoid? () =>void: (value) =>void