js Method for Counting the Number of Specific Characters in String

  • 2021-07-07 06:16:05
  • OfStack

In this paper, an example is given to describe the method of counting the number of specific characters in string by js. Share it for your reference, as follows:

//js Count the number of specific characters contained in a string 
function getPlaceholderCount(strSource) {
  // The statistics string contains {} Or {xxXX} The number of 
  var thisCount = 0;
  strSource.replace(/\{[xX]+\}|\{\}/g, function (m, i) {
    //m For finding {xx} Element, i For index 
  return thisCount;

PS: Here is another very convenient statistical tool:

Online word count tool:

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I hope this article is helpful to everyone's JavaScript programming.

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