Discover a non-null string within a deeply nested data structure

Within the 'task' object, the value of the 'door' property can vary each time it is accessed:

var task = {};

task["123"] = [{"door":""}, {"door":""},  {"door":""}, {"door":""}];
task["456"] = [{"door":""}, {"door":"close"},  {"door":""}, {"door":""}];
task["789"] = [{"door":""}, {"door":""},  {"door":""}, {"door":""}];

We want to identify if there is an entry in the task object that contains an array item with a non-empty property value. In this case, only one such entry exists with a value of "close".

Instead of utilizing nested for loops to search for a non-empty value, are there alternative methods to achieve this? (perhaps using LINQ to write shorter code?)

javascript

Answer №1

While LINQ is specific to C# and not JavaScript, there are ways to achieve similar functionality using ES6 syntax. For example, you can use methods like .some() in combination with .flat() to check if a property like door contains non-empty values:

var task = {};
task["123"] = [{door: ""}, {door: ""}, {door: ""}, {door: ""}];
task["456"] = [{door: ""}, {door: "close"}, {door: ""}, {door: ""}];
task["789"] = [{door: ""}, {door: ""}, {door: ""}, {door: ""}];

const hasNonEmptyDoor = Object.values(task)
  .flat()
  .some(item => item.door !== "");

console.log(hasNonEmptyDoor);

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