Some articles recommend using ES6 destructuring for React props & state as a best practice.
For example:
const { showModal, hideModal } = this.props;While I understand the benefits of cleaner code, I recently discussed with another developer who suggested extending this practice to include class methods for performance improvement.
I personally believe that it won't necessarily result in faster code and could actually make it more confusing.
What are your thoughts on this? Any opinions?
While some may argue that using destructuring in your code won't have a significant impact on its performance, the truth is that in real-world scenarios, readability and maintainability are key factors to consider. Having code that is concise and easy to understand can actually lead to fewer errors and ultimately result in faster outcomes.
In my opinion, implementing destructuring can greatly enhance the clarity of your variables and parameters. Take for example this snippet from a react-virtualized repository:
_cellRenderer ({ columnIndex, key, rowIndex, style }) {
if (columnIndex === 0) {
return this._renderLeftSideCell({ columnIndex, key, rowIndex, style })
} else {
return this._renderBodyCell({ columnIndex, key, rowIndex, style })
}
}
Simply by looking at the method declaration, it's clear what parameters are being used. Compare this with a non-destructured version:
_cellRenderer (p) {
if (p.columnIndex === 0) {
return this._renderLeftSideCell({ columnIndex: p.columnIndex, key: p.key, rowIndex: p.rowIndex, style: p.style })
} else {
return this._renderBodyCell({ columnIndex: p.columnIndex, key: p.key, rowIndex: p.rowIndex, style: p.style })
}
}
The difference is evident - the destructured version is more concise and easier to read than its counterpart.
Agreed, I also appreciate the example provided by react-virtualised.
However, what if we include something like this in our code?
const { _renderBodyCell, _renderLeftSideCell } = this;
_cellRenderer ({ columnIndex, key, rowIndex, style }) {
if (columnIndex === 0) {
return _renderLeftSideCell({ columnIndex, key, rowIndex, style })
} else {
return _renderBodyCell({ columnIndex, key, rowIndex, style })
}
}
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