fix(asString) return type now compatible with older TS

tohagan · Jan 24, 2020 · 1d40970 · 1d40970
1 parent 8a99362
commit 1d40970
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/src/result.ts b/src/result.ts
@@ -85,7 +85,7 @@ export const asSuccess = <V>(r: Result<V, any>, log?: Logger): boolean => {
  *
  * @param r Validation result
  */
-export const asString = <V>(r: Result<V, any>): string? => {
+export const asString = <V>(r: Result<V, any>): string | null => {
   if (r.ok !== true) {
     return r.error.message;
   }

diff --git a/src/validator.ts b/src/validator.ts
@@ -793,7 +793,7 @@ export class Validator<A> {
   /**
    * Run the validator and return null on success, or string containing a formatted error.
    */
-  asString = (data: unknown): string? => Result.asString(this.check(data));
+  asString = (data: unknown): string | null => Result.asString(this.check(data));
 
   /**
    * Run the validator and return true on success, or false on failure.