/**

* @fileoverview added by tsickle

* Generated from: packages/core/src/application_tokens.ts

* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc

*/

/**

* A DI Token representing a unique string id assigned to the application by Angular and used

* primarily for prefixing application attributes and CSS styles when

* {\@link ViewEncapsulation#Emulated ViewEncapsulation.Emulated} is being used.

*

* If you need to avoid randomly generated value to be used as an application id, you can provide

* a custom value via a DI provider configuring the root {\@link Injector}

* using this token.

* \@publicApi

* @type {?}

*/

const APP_ID = new InjectionToken('AppId');

/**

* @return {?}

*/

function _appIdRandomProviderFactory() {

   return `${_randomChar()}${_randomChar()}${_randomChar()}`;

}

/**

* Providers that will generate a random APP_ID_TOKEN.

* \@publicApi

* @type {?}

*/

const APP_ID_RANDOM_PROVIDER = {

   provide: APP_ID,

   useFactory: _appIdRandomProviderFactory,

   deps: (/** @type {?} */ ([])),

};

/**

* @return {?}

*/

function _randomChar() {

   return String.fromCharCode(97 + Math.floor(Math.random() * 25));

}