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README.md

1048 - A rest parameter cannot have an initializer.

🔍 Regex Patterns

regexFind: /\.\.\.([a-zA-Z_$][a-zA-Z0-9_$.-]*):\s*(\w+)\[\]\s*=\s*\[.*\]/
regexReplace: ...$1: $2[]

💡 Suggestion

Remove initializer from rest parameter. Rest parameters cannot have default values or initializers - they collect remaining arguments and are always optional.

📝 Examples

Example 1: Rest parameter with array initializer

- function testRestInitializer(...args: string[] = ['default']) {
+ function testRestInitializer(...args: string[]) {
    return args
  }

Explanation: Remove initializer from rest parameter

Example 2: Rest parameter with initializer in arrow function

- const process = (...items: number[] = [1, 2, 3]) => items
+ const process = (...items: number[]) => items

Explanation: Remove initializer from rest parameter in arrow function

🖼️ Visual Output

Command

npx tsc ./docs/1048/index.ts --noEmit --pretty

Result

docs/1048/index.ts:1:33 - error TS1048: A rest parameter cannot have an initializer.

1 function testRestInitializer(...args: string[] = ['default']) {
                                  ~~~~

OR (without --pretty flag):

docs/1048/index.ts(1,33): error TS1048: A rest parameter cannot have an initializer.