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refactor: simplify isPresent(x) ? x : y to x || y (#12166)

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Closes #12166
This commit is contained in:
Victor Berchet
2016-10-07 18:11:37 -07:00
committed by Tobias Bosch
parent bdcf46f82e
commit d972d82354
18 changed files with 40 additions and 43 deletions
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modules/@angular/core/src/change_detection/differs/default_iterable_differ.ts
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@ -47,7 +47,7 @@ export class DefaultIterableDiffer implements IterableDiffer {
private _identityChangesTail: CollectionChangeRecord = null;
constructor(private _trackByFn?: TrackByFn) {
this._trackByFn = isPresent(this._trackByFn) ? this._trackByFn : trackByIdentity;
this._trackByFn = this._trackByFn || trackByIdentity;
}
get collection() { return this._collection; }