To use the hasin
function from the Lodash library in TypeScript, first, install the Lodash library by running the following command:
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Then, import the hasin
function from the Lodash library into your TypeScript file by adding the following import statement:
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You can use the hasin
function to check if a property exists deeply in an object or not. Here is an example code snippet:
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In this example, we are checking if the name
and address.city
properties exist in the person
object using the hasin
function. If both properties exist, we log the name and city to the console. Otherwise, we log a message indicating that one or both properties do not exist.
Note that we are using TypeScript's type annotations to define the Person
interface, which specifies the shape of the person
object. This helps us catch potential errors at compile-time and provides better IDE support.
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