Where to go net 2017 school recruit online written test (front end engineer) programming questions and JavaScript code

The programming question is simple. The whole paper structure is:

First, question and answer question:

What are the framework libraries for understanding the front end?

Second, on-line programming Questions: Identity card grouping

The first way: Identity card grouping

Three, on-line programming Questions: Identity card grouping, statistical characters, hotel prices (three selected two)

The following is the No. 234 question in the third choice two answer.

I also do not understand why there are two parts of the programming problem ~ ~ ~ The following detailed talk about programming topics and JS code implementation:

First way: Identity card grouping

Code:

1 varLine ;2  while(line =Read_line ()) {3      while(Line.indexof ("")! =-1){4line = Line.replace ("", "" ");5     }6     if(Line.length <= 6){7 print (line);8     }9     Else if(Line.length > 6 && line.length <= 14){Ten         varline1 = line.substring (0,6); One         varLine2 = line.substring (6); APrint (line1 + "" +line2); -     } -     Else if(Line.length > && line.length <= 18){ the         varline1 = line.substring (0,6); -         varLine2 = line.substring (6,14); -         varLine3 = line.substring (14); -Print (line1 + "+ line2 +" "+line3); +     } -}

Description: All AC.

Second way: File extension

Code:

1 var Line ; 2  while (line = Read_line ()) {3      while (Line.indexof (".")! =-1) {4Line         = Line.split (".") ); 5         Print (line[line.length-1]); 6     }7 }

Description: All AC.

Third Way: Statistical characters

Code:

1 functionfind (obj, key) {2     if(!typeofobj = = = ' object ') {3         return false;4     }5     if(Keyinchobj) {6         return true;7     }8     Else {9         return false;Ten     } One } A varLine ; -  while(line =Read_line ()) { -     if(Object.prototype.toString.call (line) = = = ' [Object String] '){ the          while(Line.indexof ("")! =-1){ -line = Line.replace ("", "" "); -         } -         varJSON = {}; +          for(vari = 0; i < line.length; i++){ -               if(!find (JSON, line[i])) { +Json[line[i]] = 1; A               } at               Else if(Find (JSON, Line[i])) { -Json[line[i]] = Json[line[i]] + 1; -                   if(Json[line[i]] = = 3&& ((line[i]<= ' z ' &&line[i]>= ' a ') | | (Line[i] <= ' Z ' &&line[i] >= ' A '))){ - print (line[i]); -                        Break; -                   } in                   Else { -                       Continue; to                   } +               } -         } the     } *}

Description: All AC. My implementation seems a bit complicated, the following will optimize the code to continue to update, but also hope that you can more guidance, discuss ideas. Fourth Avenue: Hotel Prices

Explanation: Because the back three is the three-choice two, so the last I did not do.

Where to go net 2017 school recruit online written test (front end engineer) programming questions and JavaScript code