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65. Have you created custom library in Angular?

66. What are the ways to clone the object?

67. What are the best way to unsubscribe the observable?

68. What is Angular language service?

69. What are the ways you analyze the memory in Application?

70. Explain different router events in Angular?

71. What are the manual ways to trigger change detection.

72. What are the data types in Angular.

73. What are the best way to optimize Async Validators?

74. What is Enums in Angular?

75. What is difference between find and filter in JavaScript?

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