Squeezed some more bytes out of the bundle (~1.5%), bringing back the minified and gzipped size below 5kb

Author: fabiospampinato

src/collection/slice.ts

@@ -6,8 +6,8 @@ interface Cash {
   slice ( start?: number, end?: number ): Cash;
 }
 
-fn.slice = function ( this: Cash ) {
+fn.slice = function ( this: Cash, start?: number, end?: number ) {
 
-  return cash ( slice.apply ( this, arguments ) );
+  return cash ( slice.call ( this, start, end ) );
 
 };

src/core/cash.ts

@@ -59,5 +59,5 @@ fn.length = 0;
 fn.splice = splice; // Ensuring a cash collection gets printed as array-like in Chrome's devtools
 
 if ( typeof Symbol === 'function' ) { // Ensuring a cash collection is iterable
-  fn[Symbol['iterator']] = Array.prototype[Symbol['iterator']];
+  fn[Symbol['iterator']] = ArrayProtoType[Symbol['iterator']];
 }

src/core/each.ts

@@ -15,15 +15,15 @@ function each<T> ( arr: ArrayLike<T>, callback: EachCallback<T>, reverse?: boole
 
     while ( i-- ) {
 
-      if ( callback.call ( arr[i], i, arr[i] ) === false ) break;
+      if ( callback.call ( arr[i], i, arr[i] ) === false ) return arr;
 
     }
 
   } else {
 
     for ( let i = 0, l = arr.length; i < l; i++ ) {
 
-      if ( callback.call ( arr[i], i, arr[i] ) === false ) break;
+      if ( callback.call ( arr[i], i, arr[i] ) === false ) return arr;
 
     }
 

src/core/matches.ts

@@ -7,7 +7,7 @@ interface CashStatic {
 
 function matches ( ele: any, selector: string ): boolean {
 
-  const matches = ele && ( ele['matches'] || ele['webkitMatchesSelector'] || ele['mozMatchesSelector'] || ele['msMatchesSelector'] || ele['oMatchesSelector'] );
+  const matches = ele && ( ele['matches'] || ele['webkitMatchesSelector'] || ele['msMatchesSelector'] );
 
   return !!matches && matches.call ( ele, selector );
 

src/core/pluck.ts

@@ -27,9 +27,7 @@ function pluck<T> ( arr: ArrayLike<T>, prop: string | PluckCallback<T>, deep?: b
 
         plucked.push ( val );
 
-        if ( !deep ) break;
-
-        val = val[prop];
+        val = deep ? val[prop] : null;
 
       }
 

src/core/variables.ts

@@ -7,8 +7,8 @@ const doc = document,
       table = createElement ( 'table' ),
       tbody = createElement ( 'tbody' ),
       tr = createElement ( 'tr' ),
-      {isArray} = Array,
-      {filter, indexOf, map, push, slice, some, splice} = Array.prototype;
+      {isArray, prototype: ArrayProtoType} = Array,
+      {filter, indexOf, map, push, slice, some, splice} = ArrayProtoType;
 
 const idRe = /^#[\w-]*$/,
       classRe = /^\.[\w-]*$/,

src/css/helpers/get_prefixed_prop.ts

@@ -11,7 +11,7 @@ interface CashStatic {
 
 const prefixedProps: { [prop: string]: string } = {},
       {style} = div,
-      vendorsPrefixes = ['webkit', 'moz', 'ms', 'o'];
+      vendorsPrefixes = ['webkit', 'moz', 'ms'];
 
 function getPrefixedProp ( prop: string, isVariable: boolean = isCSSVariable ( prop ) ): string {
 
@@ -20,7 +20,7 @@ function getPrefixedProp ( prop: string, isVariable: boolean = isCSSVariable ( p
   if ( !prefixedProps[prop] ) {
 
     const propCC = camelCase ( prop ),
-          propUC = `${propCC.charAt ( 0 ).toUpperCase ()}${propCC.slice ( 1 )}`,
+          propUC = `${propCC[0].toUpperCase ()}${propCC.slice ( 1 )}`,
           props = ( `${propCC} ${vendorsPrefixes.join ( `${propUC} ` )}${propUC}` ).split ( ' ' );
 
     each ( props, ( i, p ) => {

src/data/data.ts

@@ -4,7 +4,6 @@
 // @require collection/each.ts
 // @require ./helpers/get_data.ts
 // @require ./helpers/set_data.ts
-// @require ./helpers/variables.ts
 
 interface Cash {
   data (): plainObject | undefined;
@@ -25,17 +24,11 @@ function data ( this: Cash, name?: string | plainObject, value?: any ) {
 
     const datas: { [data: string]: any } = {};
 
-    each ( this[0].attributes, ( i, attr ) => {
+    for ( const key in this[0].dataset ) {
 
-      const match = attr.name.match ( dataAttributeRe );
+      datas[key] = getData ( this[0], key );
 
-      if ( match ) {
-
-        datas[match[1]] = this.data ( match[1] );
-
-      }
-
-    });
+    }
 
     return datas;
 

src/data/helpers/variables.ts

@@ -9,7 +9,7 @@ function getDefaultDisplay ( tagName: string ): string {
 
   const ele = createElement ( tagName );
 
-  doc.body.appendChild ( ele );
+  doc.body.insertBefore ( ele, null );
 
   const display = computeStyle ( ele, 'display' );