'Understanding Typescript Generics and How to Implement Them' typescript typescripttutorial
are a way to define flexible variables, functions, objects, arrays etc. Sometimes we need a particular function or object to work with a wide range of types and not be restricted by the rigidity that comes with writing with typescript. That's where typescript generics come in.
When we run this program, we get an error because the function is flexible but doesn’t know the type of argument we are looking to pass in and therefore doesn’t know that it has a length property.function getLastItem: Type{ return arr[arr.length -1] } let arr1=getLastItem console.log// returns 5specifies that the argument will be an array typescript, knowing that there usually is a length property on the array allows us to do this.
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