开发笔记:去哪儿网2017校招在线笔试（前端工程师）编程题及JavaScript代码

1 var line;
2 while(line = read_line()){
3 while(line.indexOf(" ") != -1){
4 line = line.replace(" ","");
5 }
6 if(line.length <= 6){
7 print(line);
8 }
9 else if(line.length > 6 && line.length <= 14){
10 var line1 = line.substring(0,6);
11 var line2 = line.substring(6);
12 print(line1 + " " + line2);
13 }
14 else if(line.length > 14 && line.length <= 18){
15 var line1 = line.substring(0,6);
16 var line2 = line.substring(6,14);
17 var line3 = line.substring(14);
18 print(line1 + " " + line2 + " " + line3);
19 }
20 }

1 var line;
2 while(line = read_line()){
3 while(line.indexOf(".") != -1){
4 line = line.split(".");
5 print(line[line.length-1]);
6 }
7 }

1 function find (obj, key) {
2 if (! typeof obj === ‘object‘) {
3 return false;
4 }
5 if (key in obj) {
6 return true;
7 }
8 else {
9 return false;
10 }
11 }
12 var line;
13 while(line = read_line()){
14 if(Object.prototype.toString.call(line)===‘[object String]‘){
15 while(line.indexOf(" ") != -1){
16 line = line.replace(" ","");
17 }
18 var json = {};
19 for(var i = 0; i ){
20 if (!find(json, line[i])){
21 json[line[i]] = 1;
22 }
23 else if(find(json, line[i])) {
24 json[line[i]] = json[line[i]] + 1;
25 if (json[line[i]] == 3&&((line[i]<=‘z‘&&line[i]>=‘a‘)||(line[i] <= ‘Z‘&&line[i] >= ‘A‘))){
26 print(line[i]);
27 break;
28 }
29 else {
30 continue;
31 }
32 }
33 }
34 }
35 }