fix: issue #2

Author: a8m

src/collection/chunk-by.pipe.ts

@@ -1,5 +1,5 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { isArray, isUndefined } from '../utils/utils';
+import { isUndefined } from '../utils/utils';
 
 @Pipe({
   name: 'chunkBy'

src/collection/defaults.pipe.ts

@@ -23,7 +23,7 @@ export class DefaultsPipe implements PipeTransform {
     let getters = deepKeys(defaults).map((key: string) => this.$parse(key));
 
     collection.forEach((elm: { [key: string]: any }) => {
-      getters.forEach((getter: any, i: number) => {
+      getters.forEach((getter: any) => {
         if (isUndefined(getter(elm))) {
           getter.assign(elm, getter(defaults));
         }

src/collection/first.pipe.ts

@@ -1,5 +1,5 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { toArray, isArray, getFirstMatches, isNumber, isUndefined } from '../utils/utils';
+import { toArray, isArray, getFirstMatches, isNumber } from '../utils/utils';
 import { Parse } from '../utils/parse';
 
 @Pipe({
@@ -21,7 +21,7 @@ export class FirstPipe implements PipeTransform {
       , getter = !isNumber(args[0]) ? args[0] : !isNumber(args[1]) ? args[1] : undefined;
 
     return args.length
-      ? getFirstMatches(collection, n, (getter) ? this.$parse(getter) : getter)
+      ? getFirstMatches(collection, n, getter ? this.$parse(getter) : getter)
       : collection[0];
   }
 }

src/collection/group-by.pipe.ts

@@ -1,5 +1,5 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { toArray, isArray, getFirstMatches, isNumber, isUndefined } from '../utils/utils';
+import { toArray, isArray, isUndefined } from '../utils/utils';
 import { Parse } from '../utils/parse';
 
 @Pipe({

src/collection/last.pipe.ts

@@ -1,5 +1,5 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { toArray, isArray, getFirstMatches, isNumber, isUndefined } from '../utils/utils';
+import { toArray, isArray, getFirstMatches, isNumber } from '../utils/utils';
 import { Parse } from '../utils/parse';
 
 @Pipe({

src/collection/order-by.pipe.ts

@@ -1,5 +1,4 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { isArray, toArray, isUndefined } from '../utils/utils';
 import { Parse } from '../utils/parse';
 
 @Pipe({

src/collection/range.pipe.ts

@@ -1,5 +1,5 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { toArray, isArray, isFunction } from '../utils/utils';
+import { isFunction } from '../utils/utils';
 
 @Pipe({
   name: 'range'

src/collection/search-field.pipe.ts

@@ -1,5 +1,5 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { isArray, isString } from '../utils/utils';
+import { isArray } from '../utils/utils';
 import { Parse } from '../utils/parse';
 
 @Pipe({

src/collection/to-array.pipe.ts

@@ -1,5 +1,5 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { isArray, toArray, isObject } from '../utils/utils';
+import { toArray, isObject } from '../utils/utils';
 
 @Pipe({
   name: 'toArray'

src/math/sum.pipe.ts

@@ -1,5 +1,5 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { isNumber, isArray } from '../utils/utils';
+import { isArray } from '../utils/utils';
 
 @Pipe({
   name: 'sum'

src/string/latinize.pipe.ts

@@ -1,5 +1,4 @@
 import { Pipe, PipeTransform } from '@angular/core';
-import { isString, isUndefined } from '../utils/utils';
 
 @Pipe({
   name: 'latinize'

src/utils/parse.ts

@@ -57,7 +57,6 @@ export function Parse() {
         return cache[cacheKey];
       }
       var pathKeys = exp.split('.');
-      var keysLen = pathKeys.length;
       fn = cache[cacheKey] = createGetterFn(pathKeys);
       fn.assign = function(scope: { [key: string]: any }, value: any) {
         return setterFn(scope, pathKeys, value);