npm and error messages

node_modules/friendly-errors-webpack-plugin/src/utils/colors.js

@@ -0,0 +1,38 @@
+'use strict';
+
+const chalk = require('chalk');
+
+function formatTitle(severity, message) {
+  return chalk[bgColor(severity)].black('', message, '');
+}
+
+function formatText(severity, message) {
+  return chalk[textColor(severity)](message);
+}
+
+function bgColor(severity) {
+  const color = textColor(severity);
+  return 'bg'+ capitalizeFirstLetter(color)
+}
+
+function textColor(serverity) {
+  switch (serverity.toLowerCase()) {
+    case 'success': return 'green';
+    case 'info': return 'blue';
+    case 'note': return 'white';
+    case 'warning': return 'yellow';
+    case 'error': return 'red';
+    default: return 'red';
+  }
+}
+
+function capitalizeFirstLetter(string) {
+  return string.charAt(0).toUpperCase() + string.slice(1);
+}
+
+module.exports = {
+  bgColor: bgColor,
+  textColor: textColor,
+  formatTitle: formatTitle,
+  formatText: formatText
+};

node_modules/friendly-errors-webpack-plugin/src/utils/index.js

@@ -0,0 +1,31 @@
+'use strict';
+
+/**
+ * Concat and flattens non-null values.
+ * Ex: concat(1, undefined, 2, [3, 4]) = [1, 2, 3, 4]
+ */
+function concat() {
+  const args = Array.from(arguments).filter(e => e != null);
+  const baseArray = Array.isArray(args[0]) ? args[0] : [args[0]];
+  return Array.prototype.concat.apply(baseArray, args.slice(1));
+}
+
+/**
+ * Dedupes array based on criterion returned from iteratee function.
+ * Ex: uniqueBy(
+ *     [{ id: 1 }, { id: 1 }, { id: 2 }],
+ *     val => val.id
+ * ) = [{ id: 1 }, { id: 2 }]
+ */
+function uniqueBy(arr, fun) {
+  const seen = {};
+  return arr.filter(el => {
+    const e = fun(el);
+    return !(e in seen) && (seen[e] = 1);
+  })
+}
+
+module.exports = {
+  concat: concat,
+  uniqueBy: uniqueBy
+};