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refactor: utilize type narrowing (#33075)

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PR Close #33075
This commit is contained in:
Danny Skoog
2019-10-09 17:17:52 +02:00
committed by Miško Hevery
parent 1ae77da609
commit 6ab5f3648a
29 changed files with 73 additions and 80 deletions
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6
packages/forms/src/model.ts
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@ -48,11 +48,11 @@ function _find(control: AbstractControl, path: Array<string|number>| string, del
if (path == null) return null;
if (!(path instanceof Array)) {
path = (<string>path).split(delimiter);
path = path.split(delimiter);
}
if (path instanceof Array && (path.length === 0)) return null;
if (path instanceof Array && path.length === 0) return null;
return (<Array<string|number>>path).reduce((v: AbstractControl | null, name) => {
return path.reduce((v: AbstractControl | null, name) => {
if (v instanceof FormGroup) {
return v.controls.hasOwnProperty(name as string) ? v.controls[name] : null;
}