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Lodash _.isNull


The lodash _.isNull method is a utility function that determines if a given value is null or not. It returns a boolean value that indicates whether the input value is null or not.

The _.isNull method is part of the popular lodash library, which provides a collection of utility functions that simplify common programming tasks. This method is commonly used in applications to check the validity of input data.

To use the _.isNull method, you simply pass a value to the function as an argument. The function will then determine if the value is null or not and return a boolean value of true or false.

One important thing to note is that the _.isNull method only checks for null values. It does not check for undefined or other falsy values (such as false or 0). If you need to check for these kinds of values, you should use other lodash utility methods such as _.isUndefined or _.isFalsy.

In terms of performance, the _.isNull method has a very fast execution time and is considered to be very efficient. This is due to the fact that it uses strict equality (===) to check for null values, which is a fast operation in JavaScript.

Overall, the lodash _.isNull method is a useful utility function that can help simplify data validation in your JavaScript applications. If you need to check for null values, this method is a great choice due to its fast execution time and simple syntax.