fix: replacing instanceof Array checks to Array.isArray because instanceof Array seems to be problematic on some platforms (#5606)

Author: pleerock

src/cache/RedisQueryResultCache.ts

@@ -61,7 +61,7 @@ export class RedisQueryResultCache implements QueryResultCache {
                 this.client = new this.redis();
             }
         } else if (this.clientType === "ioredis/cluster") {
-            if (cacheOptions && cacheOptions.options && cacheOptions.options instanceof Array) {
+            if (cacheOptions && cacheOptions.options && Array.isArray(cacheOptions.options)) {
                 this.client = new this.redis.Cluster(cacheOptions.options);
             } else if (cacheOptions && cacheOptions.options && cacheOptions.options.startupNodes) {
                 this.client = new this.redis.Cluster(cacheOptions.options.startupNodes, cacheOptions.options.options);

src/entity-manager/EntityManager.ts

@@ -511,7 +511,7 @@ export class EntityManager {
             target = target.options.name;
 
         // if user passed empty array of entities then we don't need to do anything
-        if (entity instanceof Array && entity.length === 0)
+        if (Array.isArray(entity) && entity.length === 0)
             return Promise.resolve(entity);
 
         // execute soft-remove operation
@@ -564,7 +564,7 @@ export class EntityManager {
             target = target.options.name;
 
         // if user passed empty array of entities then we don't need to do anything
-        if (entity instanceof Array && entity.length === 0)
+        if (Array.isArray(entity) && entity.length === 0)
             return Promise.resolve(entity);
 
         // execute recover operation
@@ -683,15 +683,15 @@ export class EntityManager {
         if (criteria === undefined ||
             criteria === null ||
             criteria === "" ||
-            (criteria instanceof Array && criteria.length === 0)) {
+            (Array.isArray(criteria) && criteria.length === 0)) {
 
             return Promise.reject(new Error(`Empty criteria(s) are not allowed for the delete method.`));
         }
 
         if (typeof criteria === "string" ||
             typeof criteria === "number" ||
             criteria instanceof Date ||
-            criteria instanceof Array) {
+            Array.isArray(criteria)) {
 
             return this.createQueryBuilder()
                 .softDelete()
@@ -721,15 +721,15 @@ export class EntityManager {
         if (criteria === undefined ||
             criteria === null ||
             criteria === "" ||
-            (criteria instanceof Array && criteria.length === 0)) {
+            (Array.isArray(criteria) && criteria.length === 0)) {
 
             return Promise.reject(new Error(`Empty criteria(s) are not allowed for the delete method.`));
         }
 
         if (typeof criteria === "string" ||
             typeof criteria === "number" ||
             criteria instanceof Date ||
-            criteria instanceof Array) {
+            Array.isArray(criteria)) {
 
             return this.createQueryBuilder()
                 .restore()

src/metadata/RelationMetadata.ts

@@ -281,11 +281,11 @@ export class RelationMetadata {
             this.givenInverseSidePropertyFactory = args.inverseSideProperty;
 
         this.isLazy = args.isLazy || false;
-        this.isCascadeInsert = args.options.cascade === true || (args.options.cascade instanceof Array && args.options.cascade.indexOf("insert") !== -1);
-        this.isCascadeUpdate = args.options.cascade === true || (args.options.cascade instanceof Array && args.options.cascade.indexOf("update") !== -1);
-        this.isCascadeRemove = args.options.cascade === true || (args.options.cascade instanceof Array && args.options.cascade.indexOf("remove") !== -1);
-        this.isCascadeSoftRemove = args.options.cascade === true || (args.options.cascade instanceof Array && args.options.cascade.indexOf("soft-remove") !== -1);
-        this.isCascadeRecover = args.options.cascade === true || (args.options.cascade instanceof Array && args.options.cascade.indexOf("recover") !== -1);
+        // this.isCascadeInsert = args.options.cascade === true || (args.options.cascade instanceof Array && args.options.cascade.indexOf("insert") !== -1);
+        // this.isCascadeUpdate = args.options.cascade === true || (args.options.cascade instanceof Array && args.options.cascade.indexOf("update") !== -1);
+        // this.isCascadeRemove = args.options.cascade === true || (args.options.cascade instanceof Array && args.options.cascade.indexOf("remove") !== -1);
+        // this.isCascadeSoftRemove = args.options.cascade === true || (args.options.cascade instanceof Array && args.options.cascade.indexOf("soft-remove") !== -1);
+        // this.isCascadeRecover = args.options.cascade === true || (args.options.cascade instanceof Array && args.options.cascade.indexOf("recover") !== -1);
         this.isCascadeInsert = args.options.cascade === true || (Array.isArray(args.options.cascade) && args.options.cascade.indexOf("insert") !== -1);
         this.isCascadeUpdate = args.options.cascade === true || (Array.isArray(args.options.cascade) && args.options.cascade.indexOf("update") !== -1);
         this.isCascadeRemove = args.options.cascade === true || (Array.isArray(args.options.cascade) && args.options.cascade.indexOf("remove") !== -1);

src/query-builder/QueryBuilder.ts

@@ -778,7 +778,7 @@ export abstract class QueryBuilder<Entity> {
             return where(this);
 
         } else if (where instanceof Object) {
-            const wheres: ObjectLiteral[] = where instanceof Array ? where : [where];
+            const wheres: ObjectLiteral[] = Array.isArray(where) ? where : [where];
             let andConditions: string[];
             let parameterIndex = Object.keys(this.expressionMap.nativeParameters).length;
 

src/query-builder/SoftDeleteQueryBuilder.ts

@@ -334,7 +334,7 @@ export class SoftDeleteQueryBuilder<Entity> extends QueryBuilder<Entity> impleme
             throw new Error(`.whereEntity method can only be used on queries which update real entity table.`);
 
         this.expressionMap.wheres = [];
-        const entities: Entity[] = entity instanceof Array ? entity : [entity];
+        const entities: Entity[] = Array.isArray(entity) ? entity : [entity];
         entities.forEach(entity => {
 
             const entityIdMap = this.expressionMap.mainAlias!.metadata.getEntityIdMap(entity);
@@ -456,4 +456,4 @@ export class SoftDeleteQueryBuilder<Entity> extends QueryBuilder<Entity> impleme
         return "";
     }
 
-}
+}

src/util/DateUtils.ts

@@ -146,7 +146,7 @@ export class DateUtils {
      * Converts each item in the given array to string joined by "," separator.
      */
     static simpleArrayToString(value: any[]|any): string[]|any {
-        if (value instanceof Array) {
+        if (Array.isArray(value)) {
             return (value as any[])
                 .map(i => String(i))
                 .join(",");

test/github-issues/587/issue-587.ts

@@ -16,7 +16,7 @@ describe("github issues > #587 Ordering of fields in composite indexes defined u
     it("should preserve field ordering when fields are specified as string[]", () => Promise.all(connections.map(async connection => {
         connection.entityMetadatas.forEach(entityMetadata => {
             entityMetadata.indices.forEach(index => {
-                if (index.givenColumnNames && index.givenColumnNames instanceof Array) {
+                if (index.givenColumnNames && Array.isArray(index.givenColumnNames)) {
                     for (let i = 0; i < index.columns.length; i++) {
                         const givenColumn = (index.givenColumnNames as string[])[i];
                         const actualColumn = index.columns[i];