how to use the iserror function from the underscore library in javascript

To use the isError function from the Underscore library in JavaScript, start by installing the library and adding it to your code:

index.tsx
const _ = require('underscore');
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Then, you can use the isError function to check if a value is an error:

index.tsx
try {
  // Some code that may throw an error
} catch (error) {
  if (_.isError(error)) {
    console.log('An error occurred:', error);
  } else {
    console.log('An unexpected error occurred:', error);
  }
}
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The isError function returns true if the value is an error, and false otherwise. This can be useful for handling errors in a more functional programming style, using higher-order functions like map and reduce.

Overall, the Underscore library provides many useful utility functions for working with JavaScript data structures, and isError is just one example.