I am dealing with a queryParams object that I need to use to query the database based on its properties. However, I am unable to determine which parameters it contains. I attempted to utilize
find(queryParameters: object = { limit: 50 }){
if (queryParameters.hasOwnProperty("limit")) {
console.log( queryParameters.limit)
}
}
but I keep receiving an error stating that Property 'limit' does not exist on type 'object'. Is there a solution to this issue?
Let's say you have a query parameter class structured like this:
class QueryParam {
// offset is optional
// limit has the default value of 50
constructor(public offset?: number, public limit: number = 50) {}
}
function checkParameters(queryParams: QueryParam){
// ensure that the limit is defined (using the default value if not)
if (queryParams.limit) {
console.log(queryParams.limit)
} else {
console.log("no queryParams provided, falling back to default...")
}
// check if the offset is defined
if(queryParams.offset) {
console.log(queryParams.offset)
} else {
console.log("offset not found")
}
}
checkParameters(new QueryParam())
// assume offset = 20
checkParameters(new QueryParam(20))
This should address your inquiry, link to the playground
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