Conditions | 24 |
Paths | 1157 |
Total Lines | 87 |
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Ratio | 0 % |
Changes | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
Complex classes like parseUrl.js ➔ processURL often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
1 | function processURL(URL, ignoreProtocol, ignoreSubdomain, ignorePath, ignorePort) { |
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2 | if (URL === null || URL === "") { |
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3 | return URL; |
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4 | } |
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5 | |||
6 | var URLobj = null; |
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7 | try { |
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8 | URLobj = new window.URL(URL); |
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9 | } |
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10 | |||
11 | catch (err) { |
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12 | if (ignoreProtocol) { |
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13 | try { |
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14 | URLobj = new window.URL("http://" + URL); |
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15 | } |
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16 | catch (err2) { |
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17 | return URL; |
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18 | } |
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19 | } |
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20 | else { |
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21 | return URL; |
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22 | } |
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23 | } |
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24 | |||
25 | var parser = document.createElement('a'); |
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26 | parser.href = URL; |
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27 | |||
28 | |||
29 | var protocol = parser.protocol; |
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30 | var host = parser.hostname; |
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31 | var path = parser.pathname; |
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32 | var port = parser.port; |
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33 | if (host === null || host === "") { |
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34 | return URL; |
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35 | } |
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36 | |||
37 | var splittedURL = host.split("."); |
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38 | var isIP = false; |
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39 | if (splittedURL.length === 4) { |
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40 | isIP = true; |
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41 | for (var i = 0; i < splittedURL.length; i++) { |
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42 | if (isNaN(splittedURL[i]) || splittedURL[i] < 0 || splittedURL[i] > 255) { |
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43 | isIP = false; |
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44 | break; |
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45 | } |
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46 | } |
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47 | } |
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48 | var baseHost = null; |
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49 | if (isIP) { |
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50 | baseHost = host; |
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51 | } |
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52 | else { |
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53 | var tld = parse_host(host); |
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54 | if(tld) { |
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55 | baseHost = tld.domain; |
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56 | } |
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57 | } |
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58 | var returnURL = ""; |
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59 | if (!ignoreProtocol) { |
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60 | returnURL += protocol + "//"; |
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61 | } |
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62 | |||
63 | if (!ignoreSubdomain) { |
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64 | returnURL += host; |
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65 | } |
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66 | else { |
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67 | returnURL += baseHost;//return the hostname and the tld of the website if ignoreSubdomain is check |
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68 | } |
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69 | |||
70 | if (ignorePort) { |
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71 | if (port) { |
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72 | returnURL = returnURL.replace(':' + port, ''); |
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73 | } |
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74 | } else { |
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75 | if (port) { |
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76 | returnURL += ':' + port; |
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77 | } |
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78 | } |
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79 | |||
80 | if (!ignorePath && path !== null && path) { |
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81 | returnURL += path; |
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82 | } |
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83 | if (returnURL.slice(-1) === "/") { |
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84 | returnURL = returnURL.slice(0, -1); |
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85 | } |
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86 | return returnURL; |
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87 | } |
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88 |