Keypress events are triggered whenever a user hits any of the keys on the keyboard and some action happens on the web application. Create a custom hook called useKeyPress to listen for Key press events. Once a specific key combination is hit, show a toast or a modal on the screen.

useKeyPress Custom Hook

Given a `Select All` checkbox - toggle the children's checkboxes in such a way that when the `select all` button is clicked, all the boxes are checked. Similarly, when the button is toggled, the checkboxes become unchecked.

Select All Checkboxes

Given a Binary Search Tree, Traverse the tree in Preorder, Postorder, and inorder traversal.

BST Traversal

Given 2 strings, find the minimum number of operations required to change one string to the other. An operation is defined as either replacement of a character, deletion of a character, or addition of a character. This problem is also called Levenshtein Distance. Levenshtein distance is a string metric for measuring the difference between two sequences.

Salesforce

useKeyPress Custom Hook

Select All Checkboxes

BST Traversal

Levenshtein Distance

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Algochurn

Frontend Churn

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