diff --git a/spec/callSpec.ts b/spec/callSpec.ts
index 3636251..b9eaf31 100644
--- a/spec/callSpec.ts
+++ b/spec/callSpec.ts
@@ -1,6 +1,6 @@
 import { blobToString, buildInputFile, Call, extractInfo } from '../src'
 
-describe('call', () => {
+export default describe('call', () => {
 
   it('should print image metadata as json if output file is .json', async done => {
     const processedFiles = await Call([await buildInputFile('fn.png', 'srcFile.png')],  ['convert', 'srcFile.png', 'info.json'])
@@ -16,7 +16,7 @@ describe('call', () => {
     expect(info[0].image.geometry.height).toBe(145)
     const processedFiles = await Call(
       [img],
-      ['convert', 'fn.png', '-rotate', '90', '-resize', '200%', 'output.png']
+      ['convert', 'fn.png', '-rotate', '90', '-resize', '200%', 'output.png'],
     )
     expect(processedFiles[0].name).toBe('output.png')
     info = await extractInfo(processedFiles[0])
diff --git a/spec/executeSpec.ts b/spec/executeSpec.ts
index e5aa9d1..df892c5 100644
--- a/spec/executeSpec.ts
+++ b/spec/executeSpec.ts
@@ -1,7 +1,7 @@
 import { buildInputFile, compare, extractInfo } from '../src'
 import { execute, executeOne } from '../src'
 
-describe('execute', () => {
+export default describe('execute', () => {
 
   describe('executeOne', () => {
     it('should run convert -resize', async done => {
@@ -13,7 +13,7 @@ describe('execute', () => {
 
       const { outputFiles } = await executeOne({
         inputFiles: [img1],
-        commands: [['convert', 'holocaust.jpg', '-resize', '123x321!', 'resized.png']]
+        commands: [['convert', 'holocaust.jpg', '-resize', '123x321!', 'resized.png']],
       })
       info = await extractInfo(outputFiles[0])
       expect(info[0].image.formatDescription.toLowerCase()).toBe('png')
@@ -41,12 +41,12 @@ describe('execute', () => {
         commands: [
           ['convert', 'image1.png', '-rotate', '70', 'image2.gif'],
           // heads up: next command uses 'image2.gif' which was the output of previous command:
-          ['convert', 'image2.gif', '-scale', '23%', 'image3.jpg']
-        ]
+          ['convert', 'image2.gif', '-scale', '23%', 'image3.jpg'],
+        ],
       })
       const result2 = await executeOne({
         inputFiles: [await buildInputFile('fn.png', 'image1.png')],
-        commands: [['convert', 'image1.png', '-rotate', '70', '-scale', '23%', 'image2.gif']]
+        commands: [['convert', 'image1.png', '-rotate', '70', '-scale', '23%', 'image2.gif']],
       })
       expect(await compare(result.outputFiles.find(f => f.name === 'image3.jpg'), result2.outputFiles[0])).toBe(true)
       done()
@@ -58,12 +58,12 @@ describe('execute', () => {
         commands: [
           'convert image1.png -rotate 70 image2.gif',
           // heads up: next command uses 'image2.gif' which was the output of previous command:
-          'convert image2.gif -scale 23% image3.jpg'
-        ]
+          'convert image2.gif -scale 23% image3.jpg',
+        ],
       })
       const result2 = await executeOne({
         inputFiles: [await buildInputFile('fn.png', 'image1.png')],
-        commands: ['convert image1.png -rotate 70 -scale 23% image2.gif']
+        commands: ['convert image1.png -rotate 70 -scale 23% image2.gif'],
       })
       expect(await compare(result.outputFiles.find(f => f.name === 'image3.jpg'), result2.outputFiles[0])).toBe(true)
       done()
diff --git a/spec/formatSpec.ts b/spec/formatSpec.ts
index ae6cc49..70afa70 100644
--- a/spec/formatSpec.ts
+++ b/spec/formatSpec.ts
@@ -1,7 +1,7 @@
 import pmap from 'p-map'
 import { buildInputFile, compare } from '../src'
 
-describe('formats', () => {
+export default describe('formats', () => {
 
   const formats = ['jpg', 'png', 'psd', 'tiff', 'xcf', 'gif', 'bmp']
 
diff --git a/spec/imageHomeSpec.ts b/spec/imageHomeSpec.ts
index 957849f..aa395ad 100644
--- a/spec/imageHomeSpec.ts
+++ b/spec/imageHomeSpec.ts
@@ -1,6 +1,6 @@
 import { buildInputFile, createImageHome } from '../src'
 
-describe('imageHome', () => {
+export default describe('imageHome', () => {
   it('should allow me to register an image', async done => {
     const imageHome = createImageHome()
     expect(imageHome.isRegistered('fn.png')).toBeFalsy()
diff --git a/spec/index.ts b/spec/index.ts
index e2f4bc1..20747e5 100644
--- a/spec/index.ts
+++ b/spec/index.ts
@@ -1,11 +1,11 @@
 jasmine.DEFAULT_TIMEOUT_INTERVAL = 10000
 
-import * as callSpec from './callSpec'
-import * as executeSpec from './executeSpec'
-import * as formatSpec from './formatSpec'
-import * as imageHomeSpec from './imageHomeSpec'
-import * as testAssetsSpec from './testAssetsSpec'
-import * as cliSpec from './util/cliSpec'
-import * as htmlSpec from './util/htmlSpec'
-import * as fileSpec from './util/fileSpec'
-import * as imageSpec from './util/imageSpec'
+export * from './callSpec'
+export * from './executeSpec'
+export * from './formatSpec'
+export * from './imageHomeSpec'
+export * from './testAssetsSpec'
+export * from './util/cliSpec'
+export * from './util/htmlSpec'
+export * from './util/fileSpec'
+export * from './util/imageSpec'
diff --git a/spec/testAssetsSpec.ts b/spec/testAssetsSpec.ts
index 52e1efd..028d394 100644
--- a/spec/testAssetsSpec.ts
+++ b/spec/testAssetsSpec.ts
@@ -1,4 +1,4 @@
-describe('assets', () => {
+export default describe('assets', () => {
   it('rotate.png and magick.wasm resources should be available in orther these tests to run', async done => {
     let r = await fetch('magick.wasm')
     expect(r.ok).toBe(true)
@@ -12,5 +12,3 @@ describe('assets', () => {
     done()
   })
 })
-
-export default ''
diff --git a/spec/util/cliSpec.ts b/spec/util/cliSpec.ts
index c2d52c4..78235ea 100644
--- a/spec/util/cliSpec.ts
+++ b/spec/util/cliSpec.ts
@@ -1,6 +1,6 @@
 import { arrayToCli, cliToArray } from '../../src'
 
-describe('util/cli', () => {
+export default describe('util/cli', () => {
 
   describe('arrayToCli', () => {
     it('should support simple commands', () => {
diff --git a/spec/util/fileSpec.ts b/spec/util/fileSpec.ts
index a2d4ff8..098702a 100644
--- a/spec/util/fileSpec.ts
+++ b/spec/util/fileSpec.ts
@@ -1,13 +1,13 @@
 import { blobToString, buildInputFile, Call, compare, extractInfo, getFileNameExtension, inputFileToOutputFile, outputFileToInputFile, getFileName } from '../../src'
 
-describe('util/file', () => {
+export default describe('util/file', () => {
 
   describe('buildInputFile', () => {
     async function test(urlToFnPng) {
       const file = await buildInputFile(urlToFnPng)
       const processedFiles = await Call(
         [file],
-        ['convert', 'fn.png', 'info.json']
+        ['convert', 'fn.png', 'info.json'],
       )
       expect(processedFiles[0].name).toBe('info.json')
       let info = JSON.parse(await blobToString(processedFiles[0].blob))
@@ -33,7 +33,7 @@ describe('util/file', () => {
       done()
     })
 
-    xit('should support data:// urls with embedded image content', () => {})
+    xit('should support data:// urls with embedded image content', () => { })
   })
 
   describe('outputFileToInputFile and inputFileToOutputFile', () => {
diff --git a/spec/util/htmlSpec.ts b/spec/util/htmlSpec.ts
index ca5424a..df5a234 100644
--- a/spec/util/htmlSpec.ts
+++ b/spec/util/htmlSpec.ts
@@ -1,6 +1,6 @@
 import { buildInputFile, loadImageElement, compare, execute } from '../../src'
 
-describe('util/html', () => {
+export default describe('util/html', () => {
 
   describe('loadImageElement', () => {
 
diff --git a/spec/util/imageSpec.ts b/spec/util/imageSpec.ts
index 259a772..516107e 100644
--- a/spec/util/imageSpec.ts
+++ b/spec/util/imageSpec.ts
@@ -1,6 +1,6 @@
 import { buildInputFile, compare, extractInfo, MagickInputFile, getFileNameExtension, Call, outputFileToInputFile } from '../../src'
 
-describe('util/image', () => {
+export default describe('util/image', () => {
 
   describe('compareImage', () => {
 
diff --git a/src/execute.ts b/src/execute.ts
index 0813891..c8ab8d0 100644
--- a/src/execute.ts
+++ b/src/execute.ts
@@ -76,7 +76,7 @@ export async function execute(config: ExecuteConfig): Promise<ExecuteResult> {
   async function mapper(c: Command) {
     const thisConfig = {
       inputFiles: Object.keys(allInputFiles).map(name => allInputFiles[name]),
-      commands: [c]
+      commands: [c],
     }
     const result = await executeOne(thisConfig)
     await pMap(result.outputFiles, async f => {
@@ -88,6 +88,6 @@ export async function execute(config: ExecuteConfig): Promise<ExecuteResult> {
   const commands = asCommand(config.commands)
   await pMap(commands, mapper, { concurrency: 1 })
   return {
-    outputFiles: Object.keys(allOutputFiles).map(name => allOutputFiles[name])
+    outputFiles: Object.keys(allOutputFiles).map(name => allOutputFiles[name]),
   }
 }
diff --git a/src/magickApi.ts b/src/magickApi.ts
index 9d15ca0..85375b0 100644
--- a/src/magickApi.ts
+++ b/src/magickApi.ts
@@ -17,7 +17,7 @@ export function Call(inputFiles: MagickInputFile[], command: string[]): Promise<
   const request = {
     files: inputFiles,
     args: command,
-    requestNumber: magickWorkerPromisesKey
+    requestNumber: magickWorkerPromisesKey,
   }
 
   const emptyPromise = CreatePromiseEvent()
@@ -35,9 +35,9 @@ function CreatePromiseEvent() {
   const emptyPromise = new Promise((resolve, reject) => {
     resolver = resolve
     rejecter = reject
-  })
-  emptyPromise['resolve'] = resolver
-  emptyPromise['reject'] = rejecter
+  }) as Promise<{}> & {resolve?: any, reject?: any}
+  emptyPromise.resolve = resolver
+  emptyPromise.reject = rejecter
   return emptyPromise
 }
 
diff --git a/src/util/file.ts b/src/util/file.ts
index 8db1ad0..29c98fe 100644
--- a/src/util/file.ts
+++ b/src/util/file.ts
@@ -36,14 +36,14 @@ export function uint8ArrayToBlob(arr: Uint8Array): Blob {
 export async function outputFileToInputFile(file: MagickOutputFile, name: string = file.name): Promise<MagickInputFile> {
   return {
     name,
-    content: await blobToUint8Array(file.blob)
+    content: await blobToUint8Array(file.blob),
   }
 }
 
 export function inputFileToOutputFile(file: MagickInputFile, name: string = file.name): MagickOutputFile {
   return {
     name,
-    blob: uint8ArrayToBlob(file.content)
+    blob: uint8ArrayToBlob(file.content),
   }
 }
 
diff --git a/src/util/image.ts b/src/util/image.ts
index 0afb80f..de3f08d 100644
--- a/src/util/image.ts
+++ b/src/util/image.ts
@@ -7,7 +7,7 @@ export async function compare(img1: MagickFile, img2: MagickFile, error: number
      '-resize', '256x256^!',
      '-metric', 'RMSE',
       '-format', '%[distortion]',
-      '-compare', 'info:info.txt']
+      '-compare', 'info:info.txt'],
     )
   const n = await blobToString(result[0].blob)
   const identical = parseFloat(n)
diff --git a/tslint.json b/tslint.json
index bdc82d1..3a050cd 100644
--- a/tslint.json
+++ b/tslint.json
@@ -9,16 +9,13 @@
         "max-line-length": [ true, 185 ],
         "member-access": false,
         "member-ordering": [ false ],
-        "no-bitwise": false,
         "no-empty": false,
-        "no-string-literal": false,
         "ordered-imports": false,
         "arrow-parens": [ true, "ban-single-arg-parens" ],
         "unified-signatures": false,
         "array-type": [ true, "array" ],
         "ban-types": false,
         "max-classes-per-file": false,
-        "no-unused-expression": false,
         "quotemark": [true, "single"],
         "semicolon": [true, "never"],
         "indent": [true, "spaces", 2],
@@ -32,7 +29,7 @@
             true,
             {
                 "singleline": "never",
-                "multiline": "never"
+                "multiline": "always"
             }
         ],
         "variable-name": false,