how to use the toupper function from lodash in javascript

You can use the _.toUpper() function from lodash to convert strings to uppercase.

Here's an example:

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

const myString = 'hello world';
const uppercaseString = _.toUpper(myString);

console.log(uppercaseString); // output: HELLO WORLD
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In this code snippet, we first require the lodash library using const _ = require('lodash'). Then we define a string myString with the value "hello world".

We then call the _.toUpper() function on myString and assign the result to uppercaseString. Finally, we log uppercaseString to the console, which will output "HELLO WORLD".

Note that we need to provide the _.toUpper() function with a string as an argument in order for it to work.