Find by key deep in a nested array

Question

Let\'s say I have an object:

[
    {
        \'title\': \"some title\"
        \'channel_id\':\'123we\'
        \'options\': [
                    {
                 


        

Answer 1

Improved @haitaka answer, using the key and predicate

function  deepSearch (object, key, predicate) {
    if (object.hasOwnProperty(key) && predicate(key, object[key]) === true) return object

    for (let i = 0; i < Object.keys(object).length; i++) {
      let value = object[Object.keys(object)[i]];
      if (typeof value === "object" && value != null) {
        let o = deepSearch(object[Object.keys(object)[i]], key, predicate)
        if (o != null) return o
      }
    }
    return null
}

So this can be invoked as:

var result = deepSearch(myObject, 'id', (k, v) => v === 1);

or

var result = deepSearch(myObject, 'title', (k, v) => v === 'Some Recommends');

Here is the demo: http://jsfiddle.net/a21dx6c0/

EDITED

In the same way you can find more than one object

function deepSearchItems(object, key, predicate) {
        let ret = [];
        if (object.hasOwnProperty(key) && predicate(key, object[key]) === true) {
            ret = [...ret, object];
        }
        if (Object.keys(object).length) {
            for (let i = 0; i < Object.keys(object).length; i++) {
                let value = object[Object.keys(object)[i]];
                if (typeof value === "object" && value != null) {
                    let o = this.deepSearchItems(object[Object.keys(object)[i]], key, predicate);
                    if (o != null && o instanceof Array) {
                        ret = [...ret, ...o];
                    }
                }
            }
        }
        return ret;
    }