Develop Reference

How do I view linting errors when i run 'gulp'?

I'm trying to install the Airbnb JavaScript style guide into my environment. I'm using gulp to show linting errors as I save my .js files but it does not show it. If I do 'eslint main.js' it shows me the errors.
Is there any way I can show it through gulp when I execute 'gulp'?
Here are my config files:
var lint = require('gulp-eslint'); //Lint JS files, including JSX
var config = {
port: 9005,
devBaseUrl: 'http://localhost',
paths: {
html: './src/*.html',
js: './src/**/.js',
css: [
'node_modules/bootstrap/dist/css/bootstrap.min.css',
'node_modules/bootstrap/dist/css/bootstrap-theme.min.css'
],
dist: './dist',
mainJs: './src/main.js'
}
};
...
gulp.task('lint', function () {
return gulp.src(config.paths.js)
.pipe(lint())
.pipe(lint.format())
.pipe(lint.failAfterError());
});
gulp.task('watch', function () {
gulp.watch(config.paths.html, ['html']);
gulp.watch(config.paths.js, ['js', 'lint']);
gulp.watch(config.paths.css, ['css']);
});
gulp.task('default', ['html', 'js', 'css', 'lint', 'open', 'watch']);
my main.js file:
test = 1;
var App = console.log('Testing Browserify');
module.exports = App;
and here is what I see when I run 'gulp' and also when I run 'eslint main.js'. Errors should show on the terminal to the right, but it does not show any linting errors.

Have you tried setting your eslint configuration file on lint call?
gulp.task('lint', function () {
return gulp.src(config.paths.js)
.pipe(lint({
// Load a specific ESLint config
configFile: 'eslintConfig.json'
}
))
.pipe(lint.format())
.pipe(lint.failAfterError());
});
From: https://github.com/adametry/gulp-eslint/blob/master/example/config.js

PDFMAKE: 'Roboto-Regular.ttf' not found in virtual file system ONLY AFTER GULP

I created a simple app using knockout/bootstrap/gulp that downloads a pdf using pdfMake.js. It works fine in debug mode using VS2017. After publishing and using gulp it gives this error when run: File 'Roboto-Regular.ttf' not found in virtual file system
Note: After gulp, all JS files are in one script.js file.
I tried many things, it always works when debugging, as soon as I run gulp, it gives the error.
I tried joepal1976's solution from here (what I did with the dependencies in require.config.js)
Someone suggested .pipe(uglify({
compress: {
hoist_funs: false
}
})) which doesn't appear to help.
Included in require.config like so:
var require = {
baseUrl: ".",
paths: {
"jquery": "js-libs/jquery.min",
"bootstrap": "js-libs/bootstrap.min",
"crossroads": "js-libs/crossroads.min",
"hasher": "js-libs/hasher.min",
"knockout": "js-libs/knockout",
"knockout-projections": "js-libs/knockout-projections.min",
"signals": "js-libs/signals.min",
"text": "js-libs/text",
"vfs_fonts": "js-libs/vfs_fonts",
"pdfMake": "js-libs/pdfmake.min"
},
shim: {
"bootstrap": { deps: ["jquery"] },
'pdfMake':
{
exports: 'vfs_fonts'
},
'vfs_fonts':
{
deps: ['pdfMake'],
exports: 'vfs_fonts'
}
}
};
JS for the page:
define(["knockout", "text!./home.html"], function (ko, homeTemplate) {
function HomeViewModel(route) {
var thisVM = this;
this.VMInit = function () {
var thePDF = {
content: [
'My test invoice.',
]
};
pdfMake.createPdf(thePDF).download('pdf_test.pdf');
}
thisVM.VMInit();
}
return { viewModel: HomeViewModel, template: homeTemplate };
});
The Gulp file:
//-----------------------------------------------------------------------
// Node modules
var fs = require('fs'),
vm = require('vm'),
merge = require('deeply'),
chalk = require('chalk'),
es = require('event-stream');
//-----------------------------------------------------------------------
// Gulp and plugins
var gulp = require('gulp'),
rjs = require('gulp-requirejs-bundler'),
concat = require('gulp-concat'),
clean = require('gulp-clean'),
replace = require('gulp-replace'),
uglify = require('gulp-uglify'),
htmlreplace = require('gulp-html-replace');
// Config
var requireJsRuntimeConfig =
vm.runInNewContext(fs.readFileSync('src/app/require.config.js') + '; require;');
requireJsOptimizerConfig = merge(requireJsRuntimeConfig, {
out: 'scripts.js',
baseUrl: './src',
name: 'app/startup',
paths: {
requireLib: 'js-libs/require'
},
include: [
'requireLib',
'components/nav-bar/nav-bar',
'components/home-page/home',
'text!components/about-page/about.html'
],
insertRequire: ['app/startup'],
bundles: {
// If you want parts of the site to load on demand, remove them from the 'include' list
// above, and group them into bundles here.
// 'bundle-name': [ 'some/module', 'another/module' ],
// 'another-bundle-name': [ 'yet-another-module' ]
}
});
//-----------------------------------------------------------------------
// Discovers all AMD dependencies, concatenates together all required .js
files, minifies them
gulp.task('js', function () {
return rjs(requireJsOptimizerConfig)
.pipe(replace('Views/src/', ''))
.pipe(replace('img/', 'Assets/img/'))
.pipe(replace('css/', 'Assets/css/'))
.pipe(uglify({
preserveComments: 'some'
}))
.pipe(gulp.dest('./dist-app/Assets/js/'));
});
gulp.task('css', function () {
return gulp.src(['./src/css/bootstrap.css',
'./src/css/bootstrap-switch.css',
'./src/css/dataTables.bootstrap.css',
'./src/css/dataTables.colVis.css',
'./src/css/dataTables.responsive.css',
'./src/css/daterangePicker.css'])
.pipe(concat('styles.css'))
.pipe(gulp.dest('./dist-app/Assets/css/'));
});
// Copies index.html, replacing <script> and <link> tags to reference production
URLs
gulp.task('html', function () {
return gulp.src('./src/index.html')
.pipe(htmlreplace({
dependencies_top: '<link href="Assets/css/styles.css"
rel="stylesheet">',
dependencies_bottom: '<script src="Assets/js/scripts.js"></script>'
}))
.pipe(gulp.dest('./dist-app/'));
});
// Removes all files from ./dist/
gulp.task('clean', function () {
console.log("the clean task");
return gulp.src('./dist-app/**/*', { read: false })
.pipe(clean());
});
// All tasks in [] must complete before 'default' can begin
gulp.task('default', ['html', 'js', 'css'], function (callback) {
callback();
console.log('\nPlaced optimized files in ' + chalk.magenta('dist-app/\n'));
});
The Startup.js file if its helpful:
define(['jquery',
'knockout',
'./router',
'bootstrap',
'knockout-projections',
'pdfMake',
'vfs_fonts'], function ($, ko, router) {
// Components can be packaged as AMD modules, such as the following:
ko.components.register('nav-bar', { require: 'components/nav-bar/nav-bar' });
ko.components.register('home-page', { require: 'components/home-page/home'
});
// ... or for template-only components, you can just point to a .html file
directly:
ko.components.register('about-page', {
template: { require: 'text!components/about-page/about.html' }
});
ko.components.register('new-page', { require: 'components/new-page/new-page'
});
// [Scaffolded component registrations will be inserted here. To retain this
//feature, don't remove this comment.]
// Start the application
ko.applyBindings({ route: router.currentRoute });
});

Following code worked for me:
import pdfMake from "pdfmake/build/pdfmake";
import pdfFonts from "pdfmake/build/vfs_fonts";
pdfMake.vfs = pdfFonts.pdfMake.vfs;

I battled with this recently on stackblitz when using it with angular. the issue was pdfmake.vfs on the window object was not being set. so i had to manually set it in the constructor of my pdf service like so.
constructor() {
(window as any).pdfMake.vfs = pdfFonts.pdfMake.vfs;
}

I came across this issue and resolved it by including vfs_fonts.js just after the pdfmake Javascript file.
Here is my code, you should just need to set the file path to wherever your copy of the file is placed.
<script src="~/Content/DataTables/pdfmake-0.1.32/pdfmake.min.js"></script>
<script src="~/Content/DataTables/pdfmake-0.1.32/vfs_fonts.js"></script>
CDN LINK
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.53/pdfmake.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.32/vfs_fonts.js"></script>
please follow the hierarchy/dependency of links else it won't work

It is just the sequence of the files, add first the pdfmake and then vfs_fonts.

#Rijo solution worked in one file, but oddly enough refused to work in another file.
In the other file I had to use:
import pdfMake from "pdfmake/build/pdfmake";
import pdfFonts from "pdfmake/build/vfs_fonts";
// Wherever you call createPdf, you have to pass VFS
pdfMake.createPdf(docDefinition, null, null, pdfFonts.pdfMake.vfs).open();

Local changes to file in node_modules (Angular 2)

I know that this can be a very stupid question, but I can't find matches with other posts on stackoverflow...
So: Can I modify a file of an external module , just save the file and do something that my app can listen?
At the moment, i'm trying ti change some scss style at the ng2-datepicker module (inside node_modules folder), but if I save and the launch ng serve, changes will not affect my project.
I know it's a simple problem, but i don't know the background architecture of an Angular2 project.
Thanks in advance.
(ps I've seen that i can fork the git and then do something like npm install.
Very interesting, but i also want to know how to have the same result in local)

If you are using gulp file you can tell the changed lib file path to copy to build folder check gulp.task('copy-libs') in code below git repo for angular2-tour-of-heroes using gulp
const gulp = require('gulp');
const del = require('del');
const typescript = require('gulp-typescript');
const tscConfig = require('./tsconfig.json');
const sourcemaps = require('gulp-sourcemaps');
const tslint = require('gulp-tslint');
const browserSync = require('browser-sync');
const reload = browserSync.reload;
const tsconfig = require('tsconfig-glob');
// clean the contents of the distribution directory
gulp.task('clean', function () {
return del('dist/**/*');
});
// copy static assets - i.e. non TypeScript compiled source
gulp.task('copy:assets', ['clean'], function() {
return gulp.src(['app/**/*', 'index.html', 'styles.css', '!app/**/*.ts'], { base : './' })
.pipe(gulp.dest('dist'))
});
// copy dependencies
gulp.task('copy:libs', ['clean'], function() {
return gulp.src([
'node_modules/angular2/bundles/angular2-polyfills.js',
'node_modules/systemjs/dist/system.src.js',
'node_modules/rxjs/bundles/Rx.js',
'node_modules/angular2/bundles/angular2.dev.js',
'node_modules/angular2/bundles/router.dev.js',
'node_modules/node-uuid/uuid.js',
'node_modules/immutable/dist/immutable.js'
'yourpath/changedFileName.js'
])
.pipe(gulp.dest('dist/lib'))
});
// linting
gulp.task('tslint', function() {
return gulp.src('app/**/*.ts')
.pipe(tslint())
.pipe(tslint.report('verbose'));
});
// TypeScript compile
gulp.task('compile', ['clean'], function () {
return gulp
.src(tscConfig.files)
.pipe(sourcemaps.init())
.pipe(typescript(tscConfig.compilerOptions))
.pipe(sourcemaps.write('.'))
.pipe(gulp.dest('dist/app'));
});
// update the tsconfig files based on the glob pattern
gulp.task('tsconfig-glob', function () {
return tsconfig({
configPath: '.',
indent: 2
});
});
// Run browsersync for development
gulp.task('serve', ['build'], function() {
browserSync({
server: {
baseDir: 'dist'
}
});
gulp.watch(['app/**/*', 'index.html', 'styles.css'], ['buildAndReload']);
});
gulp.task('build', ['tslint', 'compile', 'copy:libs', 'copy:assets']);
gulp.task('buildAndReload', ['build'], reload);
gulp.task('default', ['build']);

RequireJS, Jasmine and Grunt Error: scripterror: Illegal path or script error

I have an application which uses requireJS, and I would like to use grunt-contrib-jasmie to test it. In order to get jasmine to work with require I am using cloudchen's grunt-template-jasmine-requirejs. The application has the following directory structure:
topLevelApplicationFolder
|_app.html
|_Gruntfile.js
|_package.json
|_js
|_app.js
|_app
|_modules
|_rgbaHelpers.js
|_main.js
|_lib
|_require.js
|_spec
|_rgba_spec.js
app.js is my requireJS config file:
requirejs.config({
baseUrl: "js/lib",
paths: {
app: "../app"
},
shim: {
spectrum: {
deps: ["jquery"],
exports: "spectrum"
}
}
});
// Load the main app module to start the app
requirejs(["app/main"]);
And my Gruntfile.js is the following:
module.exports = function(grunt) {
// Project configuration.
grunt.initConfig({
jasmine : {
taskName: {
src : 'js/**/*.js',
options : {
specs : 'spec/**/*.js',
template: require('grunt-template-jasmine-requirejs'),
templateOptions: {
requireConfig: {
baseUrl: 'js/lib'
}
// requireConfigFile: './js/app.js'
}
}
}
},
jshint: {
all: [
'Gruntfile.js',
'js/**/*.js',
'spec/**/*.js'
],
options: {
jshintrc: '.jshintrc'
}
}
});
grunt.loadNpmTasks('grunt-contrib-jasmine');
grunt.loadNpmTasks('grunt-contrib-jshint');
grunt.registerTask('test', ['jshint', 'jasmine']);
grunt.registerTask('default', ['test']);
};
The rgba_spec.js is the test I would like to run. It is very simple:
define(['js/app/modules/rgbaHelpers'], function (rgbaHelpers) {
describe('A suite', function() {
it('should pass this test', function() {
expect(rgbaHelpers).not.toBe(null);
});
});
});
But when I run grunt jasmine I get the following error:
Error: scripterror: Illegal path or script error: ['js/app/modules/rgbaHelpers']
I have been scratching my head over this all day. Does anyone know what is going on here?

So I was able to fix this issue by completely removing the requireConfig and baseURL from the template options:
jasmine : {
taskName: {
src : 'js/**/*.js',
options : {
specs : 'spec/**/*.js',
template: require('grunt-template-jasmine-requirejs'),
templateOptions: {
}
}
}
}
Then at the top of each spec I would do something like this:
define(['js/app/modules/mouseHelpers'], function (mouseHelpers) {

Unit Testing Angular + Browserify + Gulp and Jasmine

I'm having an angular project bundled with browserify using Gulp. Here is the tree
|--app
|--src
--js
-main.js
-otherFiles.js
|--spec
--mainspec.js <-- jasmin spec file
|--public
--js
--main.js
I'm having a gulp file which takes my source, main.js file, and browserifies it along with a gulp-jasmine tasks
gulp.task('js', function() {
return gulp.src('src/js/main.js')
.pipe(browserify({}))
.pipe(gulp.dest('public/js'));
});
gulp.task('specs', function () {
return gulp.src('spec/*.js')
.pipe(jasmine());
});
Along with some watch tasks etc.
Now, in my mainspec.js file, angular is not recognized, considering my test code:
describe("An Angular App", function() {
it("should actually have angular defined", function() {
expect(angular).toBeDefined();
});
});
And I'm getting an ReferenceError: angular is not defined error on terminal. I tried to require('angular'); on the first line but with no luck, getting a new error ReferenceError: window is not defined. I know there is something wrong with the setup and the test file not being able to reach the browserified files, but I can't just figure out the solution.
Any ideas?
Thanks in advance.

You need to define all aspects in your config file
function getKarmaConfig(environment) {
return {
frameworks : ['jasmine'],
files : [
// Angular + translate specified for build order
environment + '/js/jquery.min.js',
environment + '/js/angular.js',
environment + '/js/angular-translate.min.js',
environment + '/js/**/*.js',
'bower_components/angular-mocks/angular-mocks.js',
'test/unit/**/*.js'
],
exclude : [
],
browsers : ['PhantomJS'],
reporters : ['dots', 'junit','coverage'],
junitReporter: {
outputFile: 'test-results.xml'
},
preprocessors : {
'prod/js/*.js': ['coverage']
},
coverageReporter:{
type: 'html',
dir: 'coverage'
}
};
};
and define a gulp test task like this
gulp.task('test', ['build_prod'], function () {
var testKarma = getKarmaConfig(environment);
testKarma.action = 'run';
testKarma.browsers = ['PhantomJS'];
return gulp.src('./fake')
.pipe(karma(testKarma));
});
You just need to define src perfectly as per your structure. This will work :)