Improve code readability by simplifying control flow structures and avoiding unnecessary complexity. This involves three key practices: **1. Use early returns instead of nested if/else blocks:**
Improve code readability by simplifying control flow structures and avoiding unnecessary complexity. This involves three key practices:
1. Use early returns instead of nested if/else blocks:
// Avoid nested structures
if (condition) {
// logic
} else {
// more logic
}
// Prefer early returns
if (!condition) {
return earlyResult;
}
// main logic continues
2. Break complex logic into smaller, named functions:
// Instead of complex nested logic
const getFieldFromSchema = (fieldKey: string, schema: RecordFieldNodeValue) => {
return isRecordOutputSchemaV2(schema)
? schema.fields[fieldKey]
: schema[fieldKey];
};
3. Use appropriate language constructs:
// Use find() instead of manual loops
const contentType = Object.entries(headers)
.find(([key]) => key.toLowerCase() === 'content-type')?.[1];
// Use simple comparisons instead of array includes for basic checks
if (depth > MAX_DEPTH) // instead of [0, 1, MAX_DEPTH].includes(depth)
These patterns make code easier to follow, reduce cognitive load, and minimize the chance of errors. Nested if/else structures are particularly hard to read and maintain, while early returns create a clear flow where exceptional cases are handled first, leaving the main logic unindented and easy to follow.
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