List all possible paths using lodash

Question

I would like to list all paths of object that lead to leafs

Example:

var obj = {
 a:\"1\",
 b:{
  foo:\"2\",
  bar:3
 },
 c:[0,1]
}

Answer 1

Here's my solution. I only did it because I felt the other solutions used too much logic. Mine does not use lodash since I don't think it would add any value. It also doesn't make array keys look like [0].

const getAllPaths = (() => {
    function iterate(path,current,[key,value]){
        const currentPath = [...path,key];
        if(typeof value === 'object' && value != null){
            return [
                ...current,
                ...iterateObject(value,currentPath) 
            ];
        }
        else {
            return [
                ...current,
                currentPath.join('.')
            ];
        }
    }

    function iterateObject(obj,path = []){
        return Object.entries(obj).reduce(
            iterate.bind(null,path),
            []
        );
    }

    return iterateObject;
})();

If you need one where the keys are indexed using [] then use this:

    const getAllPaths = (() => {
        function iterate(path,isArray,current,[key,value]){
            const currentPath = [...path];
            if(isArray){
                currentPath.push(`${currentPath.pop()}[${key}]`);
            }
            else {
                currentPath.push(key);
            }
            if(typeof value === 'object' && value != null){
                return [
                    ...current,
                    ...iterateObject(value,currentPath) 
                ];
            }
            else {
                return [
                    ...current,
                    currentPath.join('.')
                ];
            }
        }

        function iterateObject(obj,path = []){
            return Object.entries(obj).reduce(
                iterate.bind(null,path,Array.isArray(obj)),
                []
            );
        }

        return iterateObject;
    })();