Counting and limiting words in a textarea

Question

I managed to make this little jquery function to count the number of words entered in textarea field.

here is the fiddle

and here is the code:

JQUERY

Answer 1

Adding a simple if condition will solve your problem.

$.each(wordCounts, function(k, v) {
    if(finalCount <= 200) {
        //Todos
    }
    else {
      return false;  //prevent keyup event
    }
 });

Answer 2

I would do it like this ?

$("#word_count").on('keydown', function(e) {
    var words = $.trim(this.value).length ? this.value.match(/\S+/g).length : 0;
    if (words <= 200) {
        $('#display_count').text(words);
        $('#word_left').text(200-words)
    }else{
        if (e.which !== 8) e.preventDefault();
    }
});

FIDDLE

Answer 3

$(document).ready(function(){ $("textarea").on('keyup',function(){

                var value = $('textarea').val();
                var wordCount = 0;

                if(value == ""){
                    $('textarea').empty();
                }
                else{

                    var regex = /\s+/gi;
                    var wordCount = value.trim().replace(regex, ' ').split(' ').length;
                }

                    if(wordCount > 25){
                     var trimmed = $(this).val().split(/\s+/,25).join(" ");
                    $(this).val(trimmed + " ");
            }
            else{
                $('#display_count').html(25- wordCount +" words left");
            }


              });

});

Answer 4

A simple plugin can be found here:

Simple Textarea Word Counter using jQuery

Answer 5

Using return false to stop keyup events doesn't block the event, because in this case the event has already fired. The keyup event fires when the user releases a key, after the default action of that key has been performed.

You will need to programmatically edit the value of the textarea you have as #wordcount:

$(document).ready(function() {
  $("#word_count").on('keyup', function() {
    var words = this.value.match(/\S+/g).length;

    if (words > 200) {
      // Split the string on first 200 words and rejoin on spaces
      var trimmed = $(this).val().split(/\s+/, 200).join(" ");
      // Add a space at the end to make sure more typing creates new words
      $(this).val(trimmed + " ");
    }
    else {
      $('#display_count').text(words);
      $('#word_left').text(200-words);
    }
  });
}); 

http://jsfiddle.net/7DT5z/9/

Answer 6

You can use positive lookahead regexes to preserve the whitespace - so that returncodes and tabs are not collapsed to a single space. Something like this:

  var wordLimit = 5;
  var words = 0;
  var jqContainer = $(".my-container");
  var jqElt = $(".my-textarea");

function charLimit()
{
  var words = 0;
  var wordmatch = jqElt.val().match(/[^\s]+\s+/g);
  words = wordmatch?wordmatch.length:0;

  if (words > wordLimit) {
      var trimmed = jqElt.val().split(/(?=[^\s]\s+)/, wordLimit).join("");
      var lastChar = jqElt.val()[trimmed.length];
      jqElt.val(trimmed + lastChar);
  }
  $('.word-count', jqContainer).text(words);
  $('.words-left', jqContainer).text(Math.max(wordLimit-words, 0));
 }
 
 jqElt.on("keyup", charLimit);
 charLimit();

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="my-container">
  <textarea class="my-textarea"></textarea>
  <span class="words-left"></span> words left
<div>