vue hello world项目
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var global = require('../internals/global');
var DESCRIPTORS = require('../internals/descriptors');
var UNSUPPORTED_DOT_ALL = require('../internals/regexp-unsupported-dot-all');
var classof = require('../internals/classof-raw');
var defineProperty = require('../internals/object-define-property').f;
var getInternalState = require('../internals/internal-state').get;
var RegExpPrototype = RegExp.prototype;
var TypeError = global.TypeError;
// `RegExp.prototype.dotAll` getter
// https://tc39.es/ecma262/#sec-get-regexp.prototype.dotall
if (DESCRIPTORS && UNSUPPORTED_DOT_ALL) {
defineProperty(RegExpPrototype, 'dotAll', {
configurable: true,
get: function () {
if (this === RegExpPrototype) return undefined;
// We can't use InternalStateModule.getterFor because
// we don't add metadata for regexps created by a literal.
if (classof(this) === 'RegExp') {
return !!getInternalState(this).dotAll;
}
throw TypeError('Incompatible receiver, RegExp required');
}
});
}