- Linting (ESLint): Stricter rules (or switch to warning)

- Breaking internal API change: `updateGripCursor` moved to be class method of Selector rather than instance method
- Breaking internal API change: `subpathIsClosed` moved to be class method of `Path` rather than instance method
- Refactoring: Reuse utilities base64 encoder for SVG icons plugin
- Docs (JSDoc): Fix return of the `mouseUp` (can also be an object) and `mouseDown` (may also be a boolean) of `pathActions`; other JSDoc additions/improvements

test/units_test.js

@@ -8,6 +8,10 @@ QUnit.log((details) => {
   }
 });
 
+/**
+ * Set up tests, supplying mock data.
+ * @returns {undefined}
+ */
 function setUp () {
   units.init(
     /**
@@ -35,7 +39,7 @@ QUnit.test('Test svgedit.units.shortFloat()', function (assert) {
   setUp();
 
   assert.ok(units.shortFloat);
-  assert.equal(typeof units.shortFloat, typeof function () {});
+  assert.equal(typeof units.shortFloat, typeof function () { /* */ });
 
   const {shortFloat} = units;
   assert.equal(shortFloat(0.00000001), 0);
@@ -51,7 +55,7 @@ QUnit.test('Test svgedit.units.isValidUnit()', function (assert) {
   setUp();
 
   assert.ok(units.isValidUnit);
-  assert.equal(typeof units.isValidUnit, typeof function () {});
+  assert.equal(typeof units.isValidUnit, typeof function () { /* */ });
 
   const {isValidUnit} = units;
   assert.ok(isValidUnit('0'));
@@ -79,7 +83,7 @@ QUnit.test('Test svgedit.units.convertUnit()', function (assert) {
   setUp();
 
   assert.ok(units.convertUnit);
-  assert.equal(typeof units.convertUnit, typeof function () {});
+  assert.equal(typeof units.convertUnit, typeof function () { /* */ });
   // cm in default setup
   assert.equal(units.convertUnit(42), 1.1113);
   assert.equal(units.convertUnit(42, 'px'), 42);