simplify code

Author: nicko-winner

src/Search/index.js

@@ -57,7 +57,7 @@ const Search = React.forwardRef(
           <Icon type="times" />
         </button>
         <hx-search></hx-search>
-        {typeof label === 'undefined' && (
+        {label && (
           <label
             className={classnames({
               hxOptional: optional,

src/Select/index.js

@@ -13,7 +13,7 @@ const Select = React.forwardRef(
           {children}
         </select>
         <hx-select></hx-select>
-        {typeof label === 'undefined' && (
+        {label && (
           <label
             className={classnames({
               hxOptional: optional,

src/Text/index.js

@@ -14,7 +14,7 @@ const Text = React.forwardRef(
         ref={ref}
       >
         <input {...rest} id={id} required={required} type="text" />
-        {typeof label === 'undefined' && (
+        {label && (
           <label
             className={classnames({
               hxOptional: optional,

src/TextArea/index.js

@@ -14,7 +14,7 @@ const TextArea = React.forwardRef(
         ref={ref}
       >
         <textarea {...rest} id={id} required={required} disabled={disabled} />
-        {typeof label === 'undefined' && (
+        {label && (
           <label
             className={classnames({
               hxOptional: optional,