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Interface: Promise<T>
internal.Promise
Represents the completion of an asynchronous operation
Type parameters
| Name |
|---|
T |
Properties
[toStringTag]
• Readonly [toStringTag]: string
Defined in
node_modules/typescript/lib/lib.es2015.symbol.wellknown.d.ts:174
Methods
catch
▸ catch<TResult>(onrejected?): Promise<T | TResult>
Attaches a callback for only the rejection of the Promise.
Type parameters
| Name | Type |
|---|---|
TResult |
never |
Parameters
| Name | Type | Description |
|---|---|---|
onrejected? |
null | (reason: any) => TResult | PromiseLike<TResult> |
The callback to execute when the Promise is rejected. |
Returns
Promise<T | TResult>
A Promise for the completion of the callback.
Defined in
node_modules/typescript/lib/lib.es5.d.ts:1509
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
| Name | Type | Description |
|---|---|---|
onfinally? |
null | () => void |
The callback to execute when the Promise is settled (fulfilled or rejected). |
Returns
Promise<T>
A Promise for the completion of the callback.
Defined in
node_modules/typescript/lib/lib.es2018.promise.d.ts:31
then
▸ then<TResult1, TResult2>(onfulfilled?, onrejected?): Promise<TResult1 | TResult2>
Attaches callbacks for the resolution and/or rejection of the Promise.
Type parameters
| Name | Type |
|---|---|
TResult1 |
T |
TResult2 |
never |
Parameters
| Name | Type | Description |
|---|---|---|
onfulfilled? |
null | (value: T) => TResult1 | PromiseLike<TResult1> |
The callback to execute when the Promise is resolved. |
onrejected? |
null | (reason: any) => TResult2 | PromiseLike<TResult2> |
The callback to execute when the Promise is rejected. |
Returns
Promise<TResult1 | TResult2>
A Promise for the completion of which ever callback is executed.
Defined in
node_modules/typescript/lib/lib.es5.d.ts:1502