How to count words in a textarea by jquery and return that value

问题

function count(){  
  var val   = $.trim($('textarea').val()),  
      words = val.replace(/\s+/gi, ' ').split(' ').length,
      chars = val.length;
  if(!chars)words=0;

 return words;
}

This function always return 0? Please help.

回答1:

You can split the textarea value on spaces and then get the words length in it. Try this:

var words = $('textarea').val().split(' ');
alert(words.length);//or return words.length;

working Demo

回答2:

text_area = $('textarea').val();
text_area.length == 0 ? 0 : text_area.trim().split(/\s+\b/).length

来源：https://stackoverflow.com/questions/23133617/how-to-count-words-in-a-textarea-by-jquery-and-return-that-value