Optional Function Parameters Total Typescript To make a function parameter optional, you use the ? after the parameter name. for example: if (typeof c !== 'undefined') { return a * b * c; return a * b; how it works: first, use the ? after the c parameter. second, check if the argument is passed to the function by using the expression typeof c !== 'undefined'. Learn how to make function parameters optional in typescript to handle different argument formats.
Optional Parameters Total Typescript We can get this functionality in typescript by adding a ? to the end of parameters we want to be optional. for example, let’s say we want the last name parameter from above to be optional:.
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