Practice Compact Object
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Compact Object
Given an object or array obj, return a compact object. A compact object is the same as the original object, except with keys containing falsy values removed. This operation applies to the object and any nested objects. Arrays are considered objects where the indices are keys. A value is considered falsy when Boolean(value) returns false. You may assume the obj is the output of JSON.parse. In other words, it is valid JSON.
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Understanding the Compact Object Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
Given an object or array obj, return a compact object. A compact object is the same as the original object, except with keys containing falsy values removed. This operation applies to the object and any nested objects. Arrays are considered objects where the indices are keys. A value is considered falsy when Boolean(value) returns false. You may assume the obj is the output of JSON.parse. In other words, it is valid JSON.
Source: Compact Object on LeetCode. Use the original task for its coding environment and submissions.
Compact Object
Related Topics
How PhantomCodeAI Helps
Get real-time assistance for Compact Object problems during coding interviews. PhantomCodeAI provides instant solutions and explanations.
Examples
# Example 1
obj = [null, 0, false, 1]
[1]
# Example 2
obj = {"a": null, "b": [false, 1]}{"b": [1]}# Example 3
obj = [null, 0, 5, [0], [false, 16]]
[5, [], [16]]
Constraints
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Frequently Asked Questions
Common questions about solving Compact Object and using PhantomCodeAI during coding interviews.
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