Correct the argument types of the forEach function

Byeol · Byeol · commit f3afac46cd3d · 2017-03-20T00:00:00.000+09:00
diff --git a/src/providers/database.ts b/src/providers/database.ts
@@ -207,7 +207,7 @@ export class DeltaSnapshot implements firebase.database.DataSnapshot {
   }
 
   // TODO(inlined) what is this boolean for?
-  forEach(action: (a: DeltaSnapshot) => boolean): boolean {
+  forEach(action: (a: DeltaSnapshot) => void): boolean {
     let val = this.val();
     if (_.isPlainObject(val)) {
       _.keys(val).forEach(key => action(this.child(key)));

Original file line number	Diff line number	Diff line change
`@@ -207,7 +207,7 @@ export class DeltaSnapshot implements firebase.database.DataSnapshot {`
`207`	`207`	`}`
`208`	`208`
`209`	`209`	`// TODO(inlined) what is this boolean for?`
`210`		`- forEach(action: (a: DeltaSnapshot) => boolean): boolean {`
	`210`	`+ forEach(action: (a: DeltaSnapshot) => void): boolean {`
`211`	`211`	`let val = this.val();`
`212`	`212`	`if (_.isPlainObject(val)) {`
`213`	`213`	`_.keys(val).forEach(key => action(this.child(key)));`