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Lodash _.isError() Method - GeeksforGeeks

Last Updated : 04 Sep, 2024

Lodash _.isError() Method checks whether the given value is a type of error or not and returns the corresponding boolean value.

_.isError(value);

• value: This parameter holds the value to be checked for error.

• This method returns a Boolean value(Returns true if the given value is an error, else false).

Example 1: In this example, we are getting a 'true' value as a new Error is an object.

// Defining Lodash variable 
const _ = require('lodash');

// Checking for Error Value 
console.log("The Value is Error : "
    + _.isError(new Error));

Output:

The Value is Error : true

Example 2: In this example, we are getting a 'false' value as Err is not an object.

// Defining Lodash variable 
const _ = require('lodash');

// Checking for Error Value 
console.log("The Value is Error : "
    + _.isError("Err"));

Output:

The Value is Error : false 

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