Shiprocket Private Limited Interview Questions, Process, and Tips

Memory leaks can be detected and prevented by monitoring memory usage, using memory profiling tools, avoiding circular references, and properly managing event listeners.

• Monitor memory usage regularly to identify any abnormal increases.

• Use memory profiling tools like Chrome DevTools or Valgrind to analyze memory usage.

• Avoid creating circular references in your code, as they can prevent objects from being garbage collect...read more

var is function scoped, let is block scoped, const is block scoped and cannot be reassigned.

• var is function scoped, let is block scoped, const is block scoped and cannot be reassigned

• var can be redeclared and updated, let can be updated but not redeclared, const cannot be redeclared or updated

• Example: var x = 10; let y = 20; const z = 30;

Closure is a function that captures the variables from its surrounding scope, even after the surrounding function has finished executing.

• Closure allows a function to access and manipulate variables from its outer scope.

• It maintains a reference to its outer scope, even after the outer function has returned.

• Closure is commonly used in event handlers and callbacks.

Rxjs operators are used for handling asynchronous operations in reactive programming.

• Map operator: transforms the items emitted by an Observable

• Filter operator: emits only those items from an Observable that pass a specified condition

• Merge operator: combines multiple Observables into one by merging their emissions

• SwitchMap operator: switches to a new Observable each time it is emitted

• DebounceTime operator: emits a valu...read more

Change detection strategy in Angular is a mechanism used to detect changes in the application state and update the view accordingly.

• Angular uses Zone.js for change detection by default

• Change detection can be triggered manually using ChangeDetectorRef

• Optimizing change detection using OnPush strategy

To find the next highest number, sort the numbers in ascending order and find the number immediately greater than the given number.

• Sort the numbers in ascending order

• Find the number immediately greater than the given number

• Return the next highest number