I am using rxjs for filter and find the include value. but getting an error as TypeError: value.includes is not a function any one correct me please?

here is my function:

 fetchPaginatedList(pageSize, searchTerm) {
        return this.list$
            .pipe(
                map((list) =>
                    list.filter((item) =>
                        Object.values(item).some((value) =>
                            value.includes(searchTerm)
                        )
                    )
                ),
                map((list) => ({
                    size: list.length.toString(),
                    list: list.splice(0, pageSize),
                }))
            )
            .toPromise();
    }

what is the correct way to integrate the include with rxjs filter?

CodePudding user response：

it should work:

fetchPaginatedList(pageSize, searchTerm) {
        return this.list$
            .pipe(
                map((list) =>
                    list.filter((item) =>
                        Object.values(item).some((value) =>
                            value?.includes(searchTerm)
                        )
                    )
                ),
                map((list) => ({
                    size: list.length.toString(),
                    list: list.splice(0, pageSize),
                }))
            )
            .toPromise();
    }

CodePudding user response：

When you are iterating oveer an object it might be a number as well. Here is a small modification of your code to transform object value to string https://stackblitz.com/edit/rxjs-gvxvop?devtoolsheight=60&file=index.ts

But you should understand that any complex structure, eg object as a property value, will break the code too.