add RegExp.escape

packages/core-js-compat/src/data.mjs

@@ -2186,6 +2186,8 @@ export const data = {
   // TODO: Remove from `core-js@4`
   'esnext.reflect.metadata': {
   },
+  'esnext.regexp.escape': {
+  },
   'esnext.set.add-all': {
   },
   'esnext.set.delete-all': {

packages/core-js-compat/src/modules-by-versions.mjs

@@ -220,4 +220,7 @@ export default {
     'esnext.data-view.set-uint8-clamped',
     'esnext.math.f16round',
   ],
+  3.33: [
+    'esnext.regexp.escape',
+  ],
 };

packages/core-js/full/regexp/escape.js

@@ -0,0 +1,5 @@
+'use strict';
+require('../../modules/esnext.regexp.escape');
+var path = require('../../internals/path');
+
+module.exports = path.RegExp.escape;

packages/core-js/full/regexp/index.js

@@ -1,4 +1,5 @@
 'use strict';
 var parent = require('../../actual/regexp');
+require('../../modules/esnext.regexp.escape');
 
 module.exports = parent;

packages/core-js/modules/esnext.regexp.escape.js

@@ -0,0 +1,20 @@
+'use strict';
+var $ = require('../internals/export');
+var uncurryThis = require('../internals/function-uncurry-this');
+var toString = require('../internals/to-string');
+var WHITESPACES = require('../internals/whitespaces');
+
+var charCodeAt = uncurryThis(''.charCodeAt);
+var replace = uncurryThis(''.replace);
+var NEED_ESCAPING = RegExp('[!"#$%&\'()*+,\\-./:;<=>?@[\\\\\\]^`{|}~' + WHITESPACES + ']', 'g');
+
+// `RegExp.escape` method
+// https://github.com/tc39/proposal-regex-escaping
+$({ target: 'RegExp', stat: true, forced: true }, {
+  escape: function escape(S) {
+    var str = toString(S);
+    var firstCode = charCodeAt(str, 0);
+    // escape first DecimalDigit
+    return (firstCode > 47 && firstCode < 58 ? '\\x3' : '') + replace(str, NEED_ESCAPING, '\\$&');
+  }
+});

packages/core-js/proposals/regexp-escaping.js

@@ -0,0 +1,3 @@
+'use strict';
+// https://github.com/tc39/proposal-regex-escaping
+require('../modules/esnext.regexp.escape');

packages/core-js/stage/2.js

@@ -5,6 +5,7 @@ require('../proposals/array-is-template-object');
 require('../proposals/async-iterator-helpers');
 require('../proposals/iterator-range');
 require('../proposals/map-upsert-stage-2');
+require('../proposals/regexp-escaping');
 require('../proposals/string-dedent');
 require('../proposals/symbol-predicates-v2');
 // TODO: Obsolete versions, remove from `core-js@4`