tessl install tessl/npm-types--react@19.1.0TypeScript definitions for React, the popular JavaScript library for building user interfaces
Agent Success
Agent success rate when using this tile
80%
Improvement
Agent success rate improvement when using this tile compared to baseline
1.48x
Baseline
Agent success rate without this tile
54%
{
"context": "This evaluation assesses how well the engineer uses React's Fragment component to return multiple sibling elements from a component without adding extra wrapper DOM nodes. The focus is on proper Fragment usage, correct syntax, and understanding when and why to use Fragments.",
"type": "weighted_checklist",
"checklist": [
{
"name": "Uses Fragment component",
"description": "Component imports and uses React.Fragment or uses the Fragment shorthand syntax (<></>) to return multiple elements",
"max_score": 35
},
{
"name": "Avoids extra wrappers",
"description": "Solution does not use unnecessary wrapper elements like <div> or <span> around the content, properly leveraging Fragment's ability to avoid adding DOM nodes",
"max_score": 30
},
{
"name": "Correct JSX syntax",
"description": "Fragment is syntactically correct in JSX: either <React.Fragment>children</React.Fragment>, <Fragment>children</Fragment> (with proper import statement from 'react'), or the shorthand <>children</> syntax",
"max_score": 25
},
{
"name": "Returns correct structure",
"description": "Component returns exactly three sibling elements (one heading and two paragraphs) grouped within the Fragment as specified in requirements",
"max_score": 10
}
]
}