js example of extracting the length of a certain () special string_javascript skills

The following editor will share with you an example of extracting the length of a certain ()special character string with js. It has a good reference value and I hope it will be helpful to everyone in learning js. Friends who are interested in js, please follow the editor to take a look.

The example is as follows:

// 提取特殊字符串长度（scrstr 源字符串 armstr 特殊字符）
getStrCount: function(scrstr, armstr) {
 var count = 0;
 while (scrstr.indexOf(armstr) >= 1) {
  scrstr = scrstr.replace(armstr, "")
  count++;
 }
 return count;
}

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