Q36: What is the will-change property and why should it be used sparingly?
will-change hints to browsers about properties expected to animate soon (e.g., will-change: transform). Browsers prepare dedicated GPU layer optimization in advance. Overusing will-change consumes excessive GPU memory.
Strategic will-change Usage
.sidebar {
will-change: transform;
transition: transform 0.3s ease-out;
}💡 will-change hints render engines to optimize transform operations ahead of sidebar movements.
Key Takeaways
- Hints render engines to allocate dedicated GPU memory layers in advance.
- Must be used sparingly; excessive use consumes system memory.
Knowledge Check
Why is applying will-change: transform to all elements across a stylesheet considered bad practice?