What is the time and space complexity of DOM Wrapper with Chaining?

Time complexity: O(1) per chained method call. Space complexity: O(1).

DOM Wrapper with Chaining

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Solution Guide: DOM Wrapper with Chaining

Approach

Create a wrapper object around a DOM element with methods like css, addClass, and removeClass. Each mutating method modifies the element state and returns the wrapper object itself, enabling jQuery-style fluent method chaining.

Complexity Analysis

Time: O(1) per chained method call
Space: O(1)

Pattern

Fluent Interface

Why It Works

Returning this (the wrapper) from each method allows consecutive calls to be chained on a single expression, reducing boilerplate and improving readability for DOM manipulation sequences.

Updated Feb 2026