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closure-compiler | A JavaScript checker and optimizer.

 by   google Java Version: Current License: Apache-2.0

 by   google Java Version: Current License: Apache-2.0

Download this library from

kandi X-RAY | closure-compiler Summary

closure-compiler is a Java library. closure-compiler has a Permissive License and it has medium support. However closure-compiler has 785 bugs, it has 5 vulnerabilities and it build file is not available. You can download it from GitHub, Maven.
The Closure Compiler is a tool for making JavaScript download and run faster. It is a true compiler for JavaScript. Instead of compiling from a source language to machine code, it compiles from JavaScript to better JavaScript. It parses your JavaScript, analyzes it, removes dead code and rewrites and minimizes what's left. It also checks syntax, variable references, and types, and warns about common JavaScript pitfalls.
Support
Support
Quality
Quality
Security
Security
License
License
Reuse
Reuse

kandi-support Support

  • closure-compiler has a medium active ecosystem.
  • It has 6402 star(s) with 1112 fork(s). There are 244 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 844 open issues and 1944 have been closed. On average issues are closed in 63 days. There are 5 open pull requests and 0 closed requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of closure-compiler is current.
closure-compiler Support
Best in #Java
Average in #Java
closure-compiler Support
Best in #Java
Average in #Java

quality kandi Quality

  • closure-compiler has 785 bugs (1 blocker, 7 critical, 747 major, 30 minor) and 15324 code smells.
closure-compiler Quality
Best in #Java
Average in #Java
closure-compiler Quality
Best in #Java
Average in #Java

securitySecurity

  • closure-compiler has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • closure-compiler code analysis shows 5 unresolved vulnerabilities (0 blocker, 0 critical, 0 major, 5 minor).
  • There are 29 security hotspots that need review.
closure-compiler Security
Best in #Java
Average in #Java
closure-compiler Security
Best in #Java
Average in #Java

license License

  • closure-compiler is licensed under the Apache-2.0 License. This license is Permissive.
  • Permissive licenses have the least restrictions, and you can use them in most projects.
closure-compiler License
Best in #Java
Average in #Java
closure-compiler License
Best in #Java
Average in #Java

buildReuse

  • closure-compiler releases are not available. You will need to build from source code and install.
  • Deployable package is available in Maven.
  • closure-compiler has no build file. You will be need to create the build yourself to build the component from source.
  • Installation instructions, examples and code snippets are available.
  • closure-compiler saves you 894442 person hours of effort in developing the same functionality from scratch.
  • It has 421484 lines of code, 33804 functions and 1883 files.
  • It has high code complexity. Code complexity directly impacts maintainability of the code.
closure-compiler Reuse
Best in #Java
Average in #Java
closure-compiler Reuse
Best in #Java
Average in #Java
Top functions reviewed by kandi - BETA

kandi has reviewed closure-compiler and discovered the below as its top functions. This is intended to give you an instant insight into closure-compiler implemented functionality, and help decide if they suit your requirements.

  • Parse an annotation .
  • Convert a double to a string .
  • Parse a regular expression .
  • Visits a node .
  • Initializes native types .
  • Builds the passes for optimizations .
  • Translates node kind .
  • Deserialize a single node .
  • Generates a string representation of a JSDoc .
  • Try to minimize the given IF condition .

closure-compiler Key Features

Consult the FAQ to make sure that the behaviour you would like isn't specifically excluded (such as string inlining).

Make sure someone hasn't requested the same thing. See the list of known issues.

Read up on what type of feature requests are accepted.

Submit your request as an issue.

Getting Started

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yarn global add google-closure-compiler
# OR
npm i -g google-closure-compiler

Basic usage

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google-closure-compiler --js file.js --js_output_file file.out.js

NodeJS API

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import closureCompiler from 'google-closure-compiler';
const { compiler } = closureCompiler;

new compiler({
  js: 'file-one.js',
  compilation_level: 'ADVANCED'
});

Compiling Multiple Scripts

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google-closure-compiler in1.js in2.js in3.js --js_output_file out.js

Building from a terminal

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# bazelisk build //:compiler_unshaded_deploy.jar
yarn build

# bazelisk build :all
yarn build:all

Testing from a terminal

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# bazelisk test //:all

Running

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# java -jar bazel-bin/compiler_unshaded_deploy.jar [...args]
yarn compile [...args]

JSDoc Mark something as Class after instantiation and define constructor properties

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const Queue_PoolEntry = /** @type {QPE_Opts} */ (mongoose.model('Queue_PoolEntry', 
    Queue_PoolEntrySchema));
let Queue_PoolEntry = mongoose.model('Queue_PoolEntry', 
    Queue_PoolEntrySchema);
if (Queue_PoolEntry && Queue_PoolEntry.id) {
  Queue_PoolEntry = /** @type {QPE_Opts} */ (Queue_PoolEntry)
} else {
  throw new Error('mongoose.model(\'Queue_PoolEntry\', Queue_PoolEntrySchema)'+
      'returned something other than a QPE_Opts' + Queue_PoolEntry);
}
-----------------------
const Queue_PoolEntry = /** @type {QPE_Opts} */ (mongoose.model('Queue_PoolEntry', 
    Queue_PoolEntrySchema));
let Queue_PoolEntry = mongoose.model('Queue_PoolEntry', 
    Queue_PoolEntrySchema);
if (Queue_PoolEntry && Queue_PoolEntry.id) {
  Queue_PoolEntry = /** @type {QPE_Opts} */ (Queue_PoolEntry)
} else {
  throw new Error('mongoose.model(\'Queue_PoolEntry\', Queue_PoolEntrySchema)'+
      'returned something other than a QPE_Opts' + Queue_PoolEntry);
}

How to use use React libraries in ClojureScript

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(ns my-project
  (:require [cljsjs.vis]))

;; accessing vis via js/WhateverGlobalItUses
(ns my-project
  (:require ["vis-network" :as vis]))

;; then use "vis" directly
-----------------------
(ns my-project
  (:require [cljsjs.vis]))

;; accessing vis via js/WhateverGlobalItUses
(ns my-project
  (:require ["vis-network" :as vis]))

;; then use "vis" directly

Angular 2 example app returns error "Cannot read property 'X' of null"

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 {
    "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
    "project": {
        "name": "xyz"
    },
    "apps": [
        {
            "root": "src",
            "outDir": "dist",
            "assets": [
                "assets",
                "favicon.ico"
            ],
            "index": "index.html",
            "main": "main.ts",
            "polyfills": "polyfills.ts",
            "test": "test.ts",
            "tsconfig": "tsconfig.app.json",
            "testTsconfig": "tsconfig.spec.json",
            "prefix": "app",
            "styles": [
                "assets/css/styles.css"

            ],
            "scripts": [
                "assets/js/project.js"      

            ],
            "environmentSource": "environments/environment.ts",
            "environments": {
                "dev": "environments/environment.ts",
                "prod": "environments/environment.prod.ts"
            }
        }
    ],
    "e2e": {
        "protractor": {
            "config": "./protractor.conf.js"
        }
    },
    "lint": [
        {
            "project": "src/tsconfig.app.json"
        },
        {
            "project": "src/tsconfig.spec.json"
        },
        {
            "project": "e2e/tsconfig.e2e.json"
        }
    ],
    "test": {
        "karma": {
            "config": "./karma.conf.js"
        }
    },
    "defaults": {
        "styleExt": "css",
        "component": {}
    }
}

What is the correct jsdoc type annotation for a try..catch identifier?

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try {throw new Error();} catch (/** @type {Error}*/whatIsMyType) {
  console.error(whatIsMyType.message);
}
try { throw new Error(); } catch (e: Error) {}
try {
  throw new CustomError();
}
catch (err) {
  console.log('bing');
  if (err instanceof CustomError) {
    console.log(err.aPropThatIndeedExistsInCustomError); //works
    console.log(err.aPropThatDoesNotExistInCustomError); //error as expected
  } else {
    console.log(err); // this could still happen
  }
}
class CustomError extends Error {
  constructor() {
    super();
    /** @type {string} */
    this.aPropThatIndeedExistsInCustomError = '';
    throw new Error('Not so fast!');  // The evil part is here
  }
}


try {
  throw new CustomError();
}
catch (/**  @type {CustomError} */err) {
  console.log('bing');
  if (err instanceof CustomError) {
    console.log(err.aPropThatIndeedExistsInCustomError); //works
    console.log(err.aPropThatDoesNotExistInCustomError); //error as expected
  } else {
    console.log(err); // this could still happen
  }
}
-----------------------
try {throw new Error();} catch (/** @type {Error}*/whatIsMyType) {
  console.error(whatIsMyType.message);
}
try { throw new Error(); } catch (e: Error) {}
try {
  throw new CustomError();
}
catch (err) {
  console.log('bing');
  if (err instanceof CustomError) {
    console.log(err.aPropThatIndeedExistsInCustomError); //works
    console.log(err.aPropThatDoesNotExistInCustomError); //error as expected
  } else {
    console.log(err); // this could still happen
  }
}
class CustomError extends Error {
  constructor() {
    super();
    /** @type {string} */
    this.aPropThatIndeedExistsInCustomError = '';
    throw new Error('Not so fast!');  // The evil part is here
  }
}


try {
  throw new CustomError();
}
catch (/**  @type {CustomError} */err) {
  console.log('bing');
  if (err instanceof CustomError) {
    console.log(err.aPropThatIndeedExistsInCustomError); //works
    console.log(err.aPropThatDoesNotExistInCustomError); //error as expected
  } else {
    console.log(err); // this could still happen
  }
}
-----------------------
try {throw new Error();} catch (/** @type {Error}*/whatIsMyType) {
  console.error(whatIsMyType.message);
}
try { throw new Error(); } catch (e: Error) {}
try {
  throw new CustomError();
}
catch (err) {
  console.log('bing');
  if (err instanceof CustomError) {
    console.log(err.aPropThatIndeedExistsInCustomError); //works
    console.log(err.aPropThatDoesNotExistInCustomError); //error as expected
  } else {
    console.log(err); // this could still happen
  }
}
class CustomError extends Error {
  constructor() {
    super();
    /** @type {string} */
    this.aPropThatIndeedExistsInCustomError = '';
    throw new Error('Not so fast!');  // The evil part is here
  }
}


try {
  throw new CustomError();
}
catch (/**  @type {CustomError} */err) {
  console.log('bing');
  if (err instanceof CustomError) {
    console.log(err.aPropThatIndeedExistsInCustomError); //works
    console.log(err.aPropThatDoesNotExistInCustomError); //error as expected
  } else {
    console.log(err); // this could still happen
  }
}
-----------------------
try {throw new Error();} catch (/** @type {Error}*/whatIsMyType) {
  console.error(whatIsMyType.message);
}
try { throw new Error(); } catch (e: Error) {}
try {
  throw new CustomError();
}
catch (err) {
  console.log('bing');
  if (err instanceof CustomError) {
    console.log(err.aPropThatIndeedExistsInCustomError); //works
    console.log(err.aPropThatDoesNotExistInCustomError); //error as expected
  } else {
    console.log(err); // this could still happen
  }
}
class CustomError extends Error {
  constructor() {
    super();
    /** @type {string} */
    this.aPropThatIndeedExistsInCustomError = '';
    throw new Error('Not so fast!');  // The evil part is here
  }
}


try {
  throw new CustomError();
}
catch (/**  @type {CustomError} */err) {
  console.log('bing');
  if (err instanceof CustomError) {
    console.log(err.aPropThatIndeedExistsInCustomError); //works
    console.log(err.aPropThatDoesNotExistInCustomError); //error as expected
  } else {
    console.log(err); // this could still happen
  }
}

lein uberjar - not setting main class properly?

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  :main my.service.runner

ERROR - [JSC_UNDEFINED_VARIABLE] variable previousPage is undeclared - Google Closure Compiler

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for (var i = 0; i < individualPagesArray.length; i++) {
   document.getElementById("numbers").innerHTML += `<button onclick=showCurrentPage(${i+1})>` + individualPagesArray[i] + `</button>`;
}
window.showCurrentPage = (i) => {
window['showCurrentPage'] = (i) => {
-----------------------
for (var i = 0; i < individualPagesArray.length; i++) {
   document.getElementById("numbers").innerHTML += `<button onclick=showCurrentPage(${i+1})>` + individualPagesArray[i] + `</button>`;
}
window.showCurrentPage = (i) => {
window['showCurrentPage'] = (i) => {
-----------------------
for (var i = 0; i < individualPagesArray.length; i++) {
   document.getElementById("numbers").innerHTML += `<button onclick=showCurrentPage(${i+1})>` + individualPagesArray[i] + `</button>`;
}
window.showCurrentPage = (i) => {
window['showCurrentPage'] = (i) => {

strange object property behavior with closure compiler ADVANCED_OPTIMIZATIONS

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/**
 * @interface
 */
function AppProps() {}

/**
 * @type {string}
 */
AppProps.prototype.version;

/**
 * @type {string}
 */
AppProps.prototype.api_host;
/**
 * 
 * @param {AppProps} props 
 */
window['app'] = function(props) {
    props = props || {};
    console.log("props.api_host = ", props.api_host);
    console.log("props['api_host'] = ", props['api_host']);
};
-----------------------
/**
 * @interface
 */
function AppProps() {}

/**
 * @type {string}
 */
AppProps.prototype.version;

/**
 * @type {string}
 */
AppProps.prototype.api_host;
/**
 * 
 * @param {AppProps} props 
 */
window['app'] = function(props) {
    props = props || {};
    console.log("props.api_host = ", props.api_host);
    console.log("props['api_host'] = ", props['api_host']);
};

google-closure-compiler basic process example

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const ClosureCompiler = require('google-closure-compiler').jsCompiler;
const {writeFile, readFileSync} = require('fs');

const closureCompiler = new ClosureCompiler({
  compilation_level: 'ADVANCED'
});
let src = readFileSync('a.js', 'UTF-8');
const compilerProcess = closureCompiler.run([{
 path: './',
 src: src,
 sourceMap: null
}], (exitCode, stdOut, stdErr) => {
  stdOut.map((fileResults) => {
    writeFile(fileResults.path, fileResults.src, () => {});
  });
});
console.log('hello world!')
console.log("hello world!");
-----------------------
const ClosureCompiler = require('google-closure-compiler').jsCompiler;
const {writeFile, readFileSync} = require('fs');

const closureCompiler = new ClosureCompiler({
  compilation_level: 'ADVANCED'
});
let src = readFileSync('a.js', 'UTF-8');
const compilerProcess = closureCompiler.run([{
 path: './',
 src: src,
 sourceMap: null
}], (exitCode, stdOut, stdErr) => {
  stdOut.map((fileResults) => {
    writeFile(fileResults.path, fileResults.src, () => {});
  });
});
console.log('hello world!')
console.log("hello world!");
-----------------------
const ClosureCompiler = require('google-closure-compiler').jsCompiler;
const {writeFile, readFileSync} = require('fs');

const closureCompiler = new ClosureCompiler({
  compilation_level: 'ADVANCED'
});
let src = readFileSync('a.js', 'UTF-8');
const compilerProcess = closureCompiler.run([{
 path: './',
 src: src,
 sourceMap: null
}], (exitCode, stdOut, stdErr) => {
  stdOut.map((fileResults) => {
    writeFile(fileResults.path, fileResults.src, () => {});
  });
});
console.log('hello world!')
console.log("hello world!");
-----------------------
const ClosureCompiler = require('google-closure-compiler').jsCompiler;
const { writeFile } = require('fs');

const closureCompiler = new ClosureCompiler({
    js:['a.js','a1.js'],
    js_output_file: 'out.js'
});

const compilerProcess = closureCompiler.run([{
    path: './',
}], (exitCode, stdOut, stdErr) => {
     writeFile(stdOut[0].path, stdOut[0].src,()=>{});
});

command line compiling generates bigger file than the online version

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--language_out=ECMASCRIPT_2015

Clojure + Clojurescript app on Heroku: dependencies of npm packages not getting installed when deploying app

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FROM openjdk:8-alpine
COPY target/uberjar/getfluentspanish.jar /getfluentspanish/app.jar
EXPOSE 3000
CMD ["java", "-jar", "/getfluentspanish/app.jar"]

Community Discussions

Trending Discussions on closure-compiler
  • JSDoc Mark something as Class after instantiation and define constructor properties
  • How to use use React libraries in ClojureScript
  • Does react-native optimize JavaScript code?
  • Google Closure Compiler Output Hosting?
  • Angular 2 example app returns error "Cannot read property 'X' of null"
  • What is the correct jsdoc type annotation for a try..catch identifier?
  • lein uberjar - not setting main class properly?
  • ERROR - [JSC_UNDEFINED_VARIABLE] variable previousPage is undeclared - Google Closure Compiler
  • strange object property behavior with closure compiler ADVANCED_OPTIMIZATIONS
  • google-closure-compiler basic process example
Trending Discussions on closure-compiler

QUESTION

JSDoc Mark something as Class after instantiation and define constructor properties

Asked 2020-Aug-27 at 15:09

I have mongoose create a Model(class) for me, and I would like to have the class to have intellisense. The problem is I don't know how to mark something as a class, and how to type the constructor for that class.

Looking at JSDocs' docs they only specify how to type a class at the declaration, not when it already has been instantiated. The @class and @constructor tags don't seem to do anything.

Right now I am getting my intellisense by marking it as a function (which it is under the hood, but it would still be great to have the correct colors in VSC) and defining the params:

/**
 * @typedef QPE_Opts
 * @type {object}
 * @prop {string} id - Id of the user 
 * ...
 */
/**
 * @type {function(QPE_Opts) : mongoose.Model<mongoose.Document, {}> }}
 */
const Queue_PoolEntry = mongoose.model('Queue_PoolEntry', Queue_PoolEntrySchema);

Solution

The solution (Was looking at the JsDocs' Documentation which was not providing enough info, thanks @Graham P Heath for giving the better docs) :

/**
 * @type {function(new:mongoose.Model<mongoose.Document, {}>, QPE_Opts ) }}
 */

ANSWER

Answered 2020-Aug-26 at 14:49

If you are sure of the type of an object you can type cast it:

const Queue_PoolEntry = /** @type {QPE_Opts} */ (mongoose.model('Queue_PoolEntry', 
    Queue_PoolEntrySchema));

In situations where you can't actually be sure of the returned type casting may be a code smell. In that case: use code to determine the validity of your type assertion by checking the object for expected properties, and only then casting it.

let Queue_PoolEntry = mongoose.model('Queue_PoolEntry', 
    Queue_PoolEntrySchema);
if (Queue_PoolEntry && Queue_PoolEntry.id) {
  Queue_PoolEntry = /** @type {QPE_Opts} */ (Queue_PoolEntry)
} else {
  throw new Error('mongoose.model(\'Queue_PoolEntry\', Queue_PoolEntrySchema)'+
      'returned something other than a QPE_Opts' + Queue_PoolEntry);
}

Source https://stackoverflow.com/questions/63584790

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install closure-compiler

The easiest way to install the compiler is with NPM or Yarn:.

Support

Post in the Closure Compiler Discuss Group.Ask a question on Stack Overflow.Consult the FAQ.

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