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524 B
524 B
| id | title | layout | permalink |
|---|---|---|---|
| children-prop-type-tip | Type of the children prop | docs | children-prop-type-tip.html |
Usually, when manipulating a component's children through this.props.children, an array is expected. To save an extra array allocation, when children only contains one single component, it returns the component itself, without the array wrapper.
This means accessing, for example, this.props.children.length might be misleading since it could be the length property of a single string component.