Interpretation of examples of intercepting Chinese and English strings and punctuation marks without garbled characters using js

Interpretation of examples of intercepting Chinese and English strings and punctuation marks without garbled characters using js_javascript skills

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May 16, 2016 pm 04:51 PM

stringPunctuation

Copy code The code is as follows:

 
<script> <BR>function subString(str, len, hasDot) <BR>{ <BR>var newLength = 0; <BR>var newStr = ""; <BR>var chineseRegex = /[^x00-xff]/g; <BR>var singleChar = ""; <BR>var strLength = str.replace(chineseRegex,"**").length; <BR>for(var i = 0;i < strLength;i ){ <BR>singleChar = str.charAt(i). toString(); <BR>if(singleChar.match(chineseRegex) != null){ <BR>newLength = 2; <BR>}else{ <BR>newLength ; <BR>} <BR>if(newLength > len){ <BR>break; <BR>} <BR>newStr = singleChar; <BR>} <br><br>if(hasDot && strLength > len){ <BR>newStr = "..."; <BR>} <BR>return newStr; <BR>} <BR>alert(subString("js intercepts Chinese and English strings without garbled characters",10,true)); <BR></script> 

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