A method for realizing the number of specific characters in a statistical string _javascript tips

This article illustrates the method of the number of specific characters appearing in the data string of JS implementation. Share to everyone for your reference, specific as follows:

The number of specific characters contained in the JS statistics string
function Getplaceholdercount (strsource) {
  //statistics string contains {} or {XxXX} number
  var thiscount = 0;
  Strsource.replace (/\{[xx]+\}|\{\}/g, function (M, i) {
    //m for found {XX} element, I is index
    thiscount++;
  });
  return thiscount;
}

PS: Here again for you to recommend a very convenient statistical tool:

Online Word Count tool:
Http://tools.jb51.net/code/zishutongji

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I hope this article will help you with JavaScript programming.