Nodejs String Truncate truncateFilename()

Method Source Code

String.prototype.truncateFilename = function() {
    var fileParts = this.split('.');
    var extension = fileParts[fileParts.length-1];
    var filename = this.substr(0, this.length - extension.length + 1);
    return filename.substr(0, 10) + '*.' + extension;
};

Related

1. truncate(n)

   String.prototype.truncate = function(n) {
     var tooLong = this.length > n,
         string = tooLong ? this.substr(0,n-1) : this;
     string = tooLong ? string.substr(0,string.lastIndexOf(' ')) : string;
     return  tooLong ? string + '...' : string;
   };
   

2. truncate(options)

   String.prototype.truncate = function (options) {
     var length = (options && options.length) || 50;
     var ending = (options && options.ending) || "...";
     var truncated = this.slice(0, length);
     if (truncated.length < this.length)
       truncated += ending;
     return truncated;
   };
   

3. truncate(options)

   String.prototype.truncate = function (options) {
     var length = (options && options.length) || 70;
     var ending = (options && options.ending) || "...";
     var truncated = this.slice(0, length);
     if (truncated.length < this.length)
       truncated += ending;
     return truncated;
   };
   

4. truncate(x)

   String.prototype.truncate = function(x){
     return this.length > x ? this.substr(0,x) : this ;
   

5. truncate(x)

   String.prototype.truncate = function(x){
     if(this.length < x) return this.valueOf();
     else return this.substring(0, x - 3) + "...";
   };
   

6. truncateString(str, num)

   function truncateString(str, num) {
     if (str.length <= num) {
       return str;
     } else {
       return str.slice(0, num > 3 ? num - 3 : num) + '...';
   truncateString("A-", 1);
   

7. truncateString(str, num)

   function truncateString(str, num) {
     if(str.length > num){
       if(num < 3){
          str = str.slice(0,num) + "...";
       }else{
       str = str.slice(0,num-3) + "...";
       console.log("actual str is " + str);
     }else{
   ...
   

8. truncateString(str, num)

   function truncateString(str, num) {
     var trunc;  
     if (num <= 3) {
       if (num < str.length){
         return str.slice(0,num) + "...";
       } else{
       trunc = str.slice(0,num);
       return trunc;
     } else if (num >= str.length) {
       return str;
     } else {
       trunc = str.slice(0,num - 3);
       return trunc + "...";
   truncateString("A-tisket a-tasket A green and yellow basket", 11);