how to use the upperfirst function from lodash in javascript

To use the upperFirst function from lodash in JavaScript, you first need to install the lodash library. This can be done using npm by running the following command:

index.tsx
npm install lodash
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Once you have lodash installed, you can use the upperFirst function like this:

index.tsx
const _ = require('lodash');

const myString = 'hello world';

const capitalizedString = _.upperFirst(myString);

console.log(capitalizedString); // Output: "Hello world"
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In this example, we import the lodash library using the require statement, and then use the upperFirst function to capitalize the first letter of the myString variable.

The output of this code is "Hello world", with the first letter of the string capitalized.

Alternatively, if you are only using the upperFirst function from lodash, you can import it directly like so:

index.tsx
const upperFirst = require('lodash/upperFirst');

const myString = 'hello world';

const capitalizedString = upperFirst(myString);

console.log(capitalizedString); // Output: "Hello world"
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This code imports only the upperFirst function from lodash, and uses it in a similar way to capitalize the first letter of the myString variable. The output is the same as before.