tsutils - npm Package Compare versions

Comparing version 3.16.0 to 3.17.0

CHANGELOG.md

@@ -0,1 +1,11 @@
+# 3.17.0
+
+**Features:**
+
+* `isValidJsxIdentifier` added an optional parameter to specify the target ECMAScript version
+
+**Bugfixes:**
+
+* `isValidJsxIdentifier` now handles astral plane characters
+
 # 3.16.0
@@ -2,0 +12,0 @@

package.json

 {
   "name": "tsutils",
-  "version": "3.16.0",
+  "version": "3.17.0",
   "description": "utilities for working with typescript's AST",
@@ -5,0 +5,0 @@ "scripts": {

util/util.d.ts

@@ -81,3 +81,3 @@ import * as ts from 'typescript';
 export declare function isValidNumericLiteral(text: string, languageVersion?: ts.ScriptTarget): boolean;
-export declare function isValidJsxIdentifier(text: string): boolean;
+export declare function isValidJsxIdentifier(text: string, languageVersion?: ts.ScriptTarget): boolean;
 export declare function isNumericPropertyName(name: string | ts.__String): boolean;
@@ -84,0 +84,0 @@ export declare function isSameLine(sourceFile: ts.SourceFile, pos1: number, pos2: number): boolean;

util/util.js

@@ -550,8 +550,13 @@ "use strict";
 exports.isValidNumericLiteral = isValidNumericLiteral;
-function isValidJsxIdentifier(text) {
-    if (text.length === 0 || !ts.isIdentifierStart(text.charCodeAt(0), ts.ScriptTarget.ES5))
+function isValidJsxIdentifier(text, languageVersion = ts.ScriptTarget.Latest) {
+    if (text.length === 0)
         return false;
-    for (let i = 1; i < text.length; ++i)
-        if (!ts.isIdentifierPart(text.charCodeAt(i), ts.ScriptTarget.ES5) && text[i] !== '-')
+    let ch = text.codePointAt(0);
+    if (!ts.isIdentifierStart(ch, languageVersion))
+        return false;
+    for (let i = charSize(ch); i < text.length; i += charSize(ch)) {
+        ch = text.codePointAt(i);
+        if (!ts.isIdentifierPart(ch, languageVersion) && ch !== 45)
             return false;
+    }
     return true;
@@ -558,0 +563,0 @@ }

No alert changes

Improved metrics

Total package byte prevSize

193189

increased by0.19%

Lines of code

3884

increased by0.13%

No dependency changes