how to use the transpose function from the underscore library in typescript

To use the transpose function from the Underscore library in TypeScript, first you need to install it as a dependency in your project. You can do this by running the following command in your project directory:

npm install underscore --save

Once you have installed Underscore, you can import it and use the _.transpose function to transpose your arrays.

import * as _ from 'underscore';

// Define an array of arrays to transpose
const data = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9]
];

// Transpose the array using the _.transpose function
const transposedData = _.transpose<number>(data);

// Output the transposed array
console.log(transposedData); // Output: [[1, 4, 7], [2, 5, 8], [3, 6, 9]]
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The _.transpose function takes a generic type parameter which specifies the type of the elements in the array. In the example above, we have specified <number> as the type parameter, as the arrays we are transposing contain numbers.

Note that the _.transpose function returns a new transposed array and does not modify the original array.