I am working with an array of Objects that contain two values:
{path: '/index', ip: '123.456.789'}My goal is to determine, for each distinct path, the count of different IPs associated with that path. For example, there may be 15 Objects with path: '/index', but only 4 unique IPs for that path.
In simpler terms, I am seeking to find the number of unique visitors to a specific webpage.
I hope this explanation is clear, thank you in advance
Edit:
Here is my current approach to calculate non-unique views:
export const generateViews = (viewData: string): Map<string, number> => {
const pathViewMap: Map<string, number> = new Map();
const viewDataArray = viewData.split("\n");
for (let i = 0; i < viewDataArray.length; i++) {
const [path] = viewDataArray[i].split(" ");
if (path) {
if (pathViewMap.has(path)) {
pathViewMap.set(path, pathViewMap.get(path) + 1);
} else {
pathViewMap.set(path, 1);
}
}
}
return pathViewMap;
};
For more context, the input is a string extracted from a log file containing a list of paths and IPs
Edit 2:
With guidance from Peter Seliger, I have developed my own solution:
const viewDataArray = viewData.split("\n").filter((item) => item);
const arr: { path: string; ip: string }[] = viewDataArray.map(
(line: string) => {
const [path, ip] = line.split(" ");
if (path && ip) {
return { path, ip };
}
}
);
const paths: string[] = Array.from(new Set(arr.map((obj) => obj.path)));
const uniqueViewsMap: Map<string, number> = new Map();
for (let i = 0; i < paths.length; i++) {
const path = paths[i];
const ips = Array.from(
new Set(arr.filter((obj) => obj.path === path).map((obj) => obj.ip))
);
uniqueViewsMap.set(path, ips.length);
}
console.log("==uniqueViewsMap==", uniqueViewsMap);