README.md

1051 - A 'set' accessor cannot have an optional parameter.

🔍 Regex Patterns

regexFind: /set\s+([a-zA-Z_$][a-zA-Z0-9_$.-]*)\s*\(\s*([^)]*)\?([^)]*)\)/
regexReplace: set $1($2$3)

💡 Suggestion

Remove the optional parameter modifier (?) from set accessor. Set accessors cannot have optional parameters - they must have exactly one required parameter.

📝 Examples

Example 1: Optional parameter in set accessor

  class TestClass {
    private _value: string = ''

-   set value(value?: string) {
+   set value(value: string) {
      this._value = value || 'default'
    }

    get value(): string {
      return this._value
    }
  }

Explanation: Remove optional parameter modifier from set accessor

Example 2: Optional parameter with type annotation

  class DataClass {
    private _config: any

-   set config(item?: any) {
+   set config(item: any) {
      this._config = item
    }
  }

Explanation: Remove optional parameter modifier from set accessor with type annotation

🖼️ Visual Output

Command

npx tsc ./docs/1051/index.ts --noEmit --pretty

Result

docs/1051/index.ts:4:18 - error TS1051: A 'set' accessor cannot have an optional parameter.

4   set value(value?: string) {
                   ~

OR (without --pretty flag):

docs/1051/index.ts(4,18): error TS1051: A 'set' accessor cannot have an optional parameter.