Using String.substring for Words

Question

I have the following example where I am putting a limit on the characters entered in the Textarea:

var tlength = $(this).val().length;
    $(this).val($(this).val().substring(0, maxchars));
    var tlength = $(this).val().length;
    remain = maxchars - parseInt(tlength);
    $('#remain').text(remain);

where maxchars is the number of characters. How can I change this example to work with words, so instead of restricting chars, I restrict to a number of words.

http://jsfiddle.net/PzESw/106/

@adeneo My previous example took care of paste scenarios for chars. I want them for words too. So basically the same example working as-is for words — user3423117
– user3423117, Commented Mar 15, 2014 at 13:44

Pavlo Kotets · Accepted Answer · 2018-03-13 10:46:56Z

3

I think you need to change one string of your code to something like this:

$(this).val($(this).val().split(' ').slice(0, maxchars).join(' '));

This code splits text in an array of words (you may need another workflow), removes extra words and joins them back

edited Mar 13, 2018 at 10:46

answered Mar 15, 2014 at 12:58

Pavlo Kotets

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3 Comments

a-d Over a year ago

What about new lines ?

Pavlo Kotets Over a year ago

you can use regexps instead of ' ' string i thing something like this is what you need: /[ \n]/

user3423117 Over a year ago

If you see the demo created by RajaPrabhu, when the last word is typed and a space is put after it, the code removes the space and appends the new word to the last word. So it becomes a never ending chunk of text as the text keeps appending to the last word

Afzaal Ahmad Zeeshan · Accepted Answer · 2014-03-15 12:57:24Z

0

A simple way would be to converting the full String into array of words.

For example you're having a String as:

var words = "Hi, My name is Afzaal Ahmad Zeeshan.";
var arrayOfWords = words.split(" "); // split at a white space

Now, you'll have an array of words. Loop it using

for (i = 0; i < words.length; i++) {
  /* write them all, or limit them in the for loop! */
}

This way, you can write the number of words in the document. Instead of characters!

answered Mar 15, 2014 at 12:57

Afzaal Ahmad Zeeshan

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