How to make gulp-babel resolve the imports of a js file. Because right now it is running without error in visual studio but the imports are not resolved. Does the source directory of modules to import need to be specified - how to do that in the gulpfile.js?
gulpfile.js
"use strict";
var gulp = require("gulp");
var babel = require("gulp-babel");
gulp.task("js", function () {
return gulp.src('./wwwroot/js/app.js')
.pipe(babel())
. pipe(gulp.dest('./wwwroot/js/babel'));
});
app.js:
import { MDCRipple } from '@material/ripple';
import { MDCTextField } from '@material/textfield';
const username = new MDCTextField(document.querySelector('.username'));
const password = new MDCTextField(document.querySelector('.password'));
new MDCRipple(document.querySelector('.cancel'));
new MDCRipple(document.querySelector('.next'));
This solved the issue:
https://github.com/babel/babelify/issues/247
In my current understanding the issue was: the dependencies are not being transpiled to a javascript version understandable by browserify.
[What worked]
gulpfile.js:
"use strict";
var gulp = require("gulp");
var browserify = require('browserify');
var source = require('vinyl-source-stream');
var babelify = require('babelify');
gulp.task("js", function () {
browserify('./wwwroot/js/app.js')
.transform("babelify", {
global: true,
presets: ["es2015", "es2016", "stage-0"],
ignore: /\/node_modules\/underscore/
})
.bundle()
.pipe(source('babel.js'))
.pipe(gulp.dest('./wwwroot/js'));
});
package.json:
{
"version": "1.0.0",
"name": "asp.net",
"private": true,
"devDependencies": {
"babel-core": "6.26.3",
"gulp": "3.9.1",
"browserify": "15.0.0",
"babelify": "8.0.0",
"babel-preset-es2015": "6.24.1",
"babel-preset-es2016": "6.24.1",
"babel-preset-stage-0": "6.24.1",
"vinyl-source-stream": "2.0.0",
"material-components-web": "0.28.0"
}
}