Simple code to add and remove class by native js

Example code:

 function hasClass( elements,cName ){ return !!elements.className.match( new RegExp( "(//s|^)" + cName + "(//s|$)") ); }; function addClass( elements,cName ){ if( !hasClass( elements,cName ) ){ elements.className += " " + cName; }; }; function removeClass( elements,cName ){ if( hasClass( elements,cName ) ){ elements.className = elements.className.replace( new RegExp( "(//s|^)" + cName + "(//s|$)" ), " " ); }; };

The above simple code for adding and deleting native js implementation class is all the content I share with you. I hope you can give you a reference and I hope you can support Wulin.com more.