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-rw-r--r--stories/ng2-component-lab/utils/pipes/keys.pipe.ts13
1 files changed, 13 insertions, 0 deletions
diff --git a/stories/ng2-component-lab/utils/pipes/keys.pipe.ts b/stories/ng2-component-lab/utils/pipes/keys.pipe.ts
new file mode 100644
index 0000000..2a58cd8
--- /dev/null
+++ b/stories/ng2-component-lab/utils/pipes/keys.pipe.ts
@@ -0,0 +1,13 @@
+import { Pipe, PipeTransform } from '@angular/core';
+
+@Pipe({name: 'keys'})
+export class KeysPipe implements PipeTransform {
+ transform(value, args:string[]) : any {
+ let keys = [];
+ for (let key in value) {
+ keys.push(key);
+ }
+ return keys;
+ }
+}
+