refactor: fix lint errors

Author: YuJianrong

src/diff/apply.ts

@@ -18,7 +18,9 @@ export function applyPatch<T>(a: T[], patch: Apply<T>): T[] {
 
   for (let i = 0; i < patch.length; ++i) {
     const patchItem = patch[i];
-    sameStart !== patchItem.oldPos && segments.push(a.slice(sameStart, patchItem.oldPos));
+    if (sameStart !== patchItem.oldPos) {
+      segments.push(a.slice(sameStart, patchItem.oldPos));
+    }
     if (patchItem.type === 'add') {
       segments.push(patchItem.items);
       sameStart = patchItem.oldPos;
@@ -28,7 +30,9 @@ export function applyPatch<T>(a: T[], patch: Apply<T>): T[] {
       sameStart = patchItem.oldPos + (<{ length: number }>patchItem).length;
     }
   }
-  sameStart !== a.length && segments.push(a.slice(sameStart));
+  if (sameStart !== a.length) {
+    segments.push(a.slice(sameStart));
+  }
 
   return ([] as T[]).concat(...segments);
 }

src/diff/lcs.ts

@@ -69,11 +69,19 @@ function getSolution<T, U = T>(
     const addFirst =
       (startDirect & Direct.vertical ? 1 : 0) + (endDirect & Direct.horizontal ? 1 : 0);
     if (removeFirst >= addFirst) {
-      aStart !== aEnd && elementsChanged('remove', a, aStart, aEnd, b, bStart, bStart);
-      bStart !== bEnd && elementsChanged('add', a, aEnd, aEnd, b, bStart, bEnd);
+      if (aStart !== aEnd) {
+        elementsChanged('remove', a, aStart, aEnd, b, bStart, bStart);
+      }
+      if (bStart !== bEnd) {
+        elementsChanged('add', a, aEnd, aEnd, b, bStart, bEnd);
+      }
     } else {
-      bStart !== bEnd && elementsChanged('add', a, aStart, aStart, b, bStart, bEnd);
-      aStart !== aEnd && elementsChanged('remove', a, aStart, aEnd, b, bEnd, bEnd);
+      if (bStart !== bEnd) {
+        elementsChanged('add', a, aStart, aStart, b, bStart, bEnd);
+      }
+      if (aStart !== aEnd) {
+        elementsChanged('remove', a, aStart, aEnd, b, bEnd, bEnd);
+      }
     }
     return;
   }

src/test/apply.spec.ts

@@ -37,7 +37,7 @@ describe('Apply Patch', () => {
 
     apply_str('', '', [], 'empty');
     apply_str('a', '', [remove(0, 0, 'a')], 'remove a');
-    apply_str('', 'b', [add(0, 0, 'b')]), 'add b';
+    apply_str('', 'b', [add(0, 0, 'b')], 'add b');
     apply_str('abcd', 'e', [remove(0, 0, 'abcd'), add(4, 0, 'e')], 'for abcd-e');
     apply_str('abc', 'abc', [], 'same abc');
     apply_str(
@@ -129,7 +129,7 @@ describe('Apply Patch', () => {
 
     apply_str('', '', [], 'empty');
     apply_str('a', '', [remove(0, 0, 'a')], 'remove a');
-    apply_str('', 'b', [add(0, 0, 'b')]), 'add b';
+    apply_str('', 'b', [add(0, 0, 'b')], 'add b');
     apply_str('abcd', 'e', [remove(0, 0, 'abcd'), add(4, 0, 'e')], 'for abcd-e');
     apply_str('abc', 'abc', [], 'same abc');
     apply_str(

src/test/patch.spec.ts

@@ -36,7 +36,7 @@ describe('Get Patch', () => {
 
     es_str('', '', [], 'empty');
     es_str('a', '', [remove(0, 0, 'a')], 'remove a');
-    es_str('', 'b', [add(0, 0, 'b')]), 'add b';
+    es_str('', 'b', [add(0, 0, 'b')], 'add b');
     es_str('abcd', 'e', [remove(0, 0, 'abcd'), add(4, 0, 'e')], 'for abcd-e');
     es_str('abc', 'abc', [], 'same abc');
     es_str(