Implementation of micro-blog Publishing box Word tip _jquery based on jquery

jquery implementation of the Micro-Bo Publishing box word tip, mainly the use of string manipulation!

Effect Chart:

Html:

<textarea name= "id=" "cols=" rows= "ten" ></textarea><br>
<span> You can also enter <strong Style= "color:red;" >140</strong> Word </span>

JQ:

  $ (function () {
    var maxlength=140;//initializes the maximum number of words
    $ ("textarea"). KeyUp (function () {
    var l=$ (this). Val (). length ;
    $ ("strong"). Text (maxlength-l);//can also enter how many
    //words exceed
    if (parseint ($ ("strong"). Text ()) <0) {
      $ ("Strong" ). text (0);//Force word
      var val=$ (this). Val (). substring (0,140);/* intercept the specified string, left-right/
      $ (this). Val (val);
    }
  );
  })

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