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1. ã¹ããŒã¯ã±ãŒã¹ (Snake Case)
ã¹ããŒã¯ã±ãŒã¹ã¯ãåèªãã¢ã³ããŒã¹ã³ã¢(_)ã§åºåãããã¹ãŠå°æåã§èšè¿°ããæ¹åŒã§ããç¹ã«Pythonã§åºãæ¡çšãããŠããŸãã
# Pythonã§ã®äœ¿çšäŸ
user_name = "ç°äž 倪é"
total_price = 100.50
is_logged_in = True
2. ã¢ãããŒã¹ããŒã¯ã±ãŒã¹ (UPPER_SNAKE_CASE)
ã¢ãããŒã¹ããŒã¯ã±ãŒã¹ã¯ãåèªãã¢ã³ããŒã¹ã³ã¢(_)ã§åºåãããã¹ãŠå€§æåã§èšè¿°ããæ¹åŒã§ããäž»ã«å®æ°ã«äœ¿çšãããŸãã
# å®æ°ã§ã®äœ¿çšäŸ
MAX_VALUE = 100
API_KEY = "XYZ123456789"
3. ãã£ã¡ã«ã±ãŒã¹ (Camel Case)
ãã£ã¡ã«ã±ãŒã¹ã¯ãæåã®åèªãå°æåã§å§ãããã以éã®åèªã®é æåã倧æåã«ããèšè¿°ããæ¹åŒã§ããJavaScriptãJavaãªã©ã§ãã䜿ãããŸãã
// JavaScriptã§ã®äœ¿çšäŸ
let userName = "ç°äž 倪é";
let totalPrice = 100.50;
let isLoggedIn = true;
4.ãã¹ã«ã«ã±ãŒã¹ (Pascal Case)
ãã¹ã«ã«ã±ãŒã¹ã¯ãæåã®æåã倧æåãæ®ãã®æåã¯å°æåã§èšè¿°ããæ¹åŒã§ããã¯ã©ã¹åãååã«å€çšãããŸããReactã®ã³ã³ããŒãã³ããC#ãJavaã§ã®ã¯ã©ã¹åã«äœ¿çšãããããšãå€ãã§ãã
// ã¯ã©ã¹åã§ã®äœ¿çšäŸ
class UserAccount {
// åŠç
}
class DatabaseConnection {
// åŠç
}
5.ã±ããã±ãŒã¹ (kebab-case)
ã±ããã±ãŒã¹ã¯ãåèªã¯ãã¹ãŠå°æåã§ãåèªå士ããã€ãã³ïŒ-ïŒã§ã€ãªãã§èšè¿°ããæ¹åŒã§ããäž»ã«URLãCSSã¯ã©ã¹åãªã©ã§äœ¿çšãããŸãã
/* CSSã§ã®äœ¿çšäŸ */
.user-name {
/* CSS styles */
}
6.ãã³ã¬ãªã¢ã³èšæ³ (Hungarian Notation)
ãã³ã¬ãªã¢ã³èšæ³ã¯ãå€æ°åã®å é ã«å€æ°ã®åã瀺ããã¬ãã£ãã¯ã¹ïŒæ¥é èŸïŒãã€ããåœåèŠåã§ããäž»ã«Windowsã®APIããã°ã©ãã³ã°ã§äœ¿çšãããŠããŸãããæ å ±ãå€æ°åã«å«ããããšã§ãã³ãŒããèªãã ãã§å€æ°ã®åããããããããªããšããå©ç¹ããããŸãã
ç¹ã«VBïŒVisual Basicã®ç¥ã§ãMicrosoftãéçºããããã°ã©ãã³ã°èšèªïŒã§ã¯ããã®åœåèŠåãäŒçµ±çã«åºã䜿ãããŠããŸããããã®åœ±é¿ãåããŠãVBAã§ãå€æ°åã«ããŒã¿åã瀺ãæ¥é èŸãä»ããããšãäžè¬çã§ãã
' ãã³ã¬ãªã¢ã³èšæ³ã®äœ¿çšäŸ
Dim strUserName As String ' strã¯Stringåã瀺ã
strUserName = "ç°äž 倪é"
Dim intUserAge As Integer ' intã¯Integeråã瀺ã
intUserAge = 20
Dim blnLoggedIn As Boolean ' blnã¯Booleanåã瀺ã
blnLoggedIn = False
ãã³ã¬ãªã¢ã³èšæ³ã¯éæšå¥š
ãã³ã¬ãªã¢ã³èšæ³ã¯ä»¥äžã®çç±ã«ãããçŸä»£ã®ããã°ã©ãã³ã°ã§ã¯æšå¥šãããªããªã£ãŠããŸãã
- åæšè«ã匷å㪠IDE ã®æ®åã«ãããåæ å ±ãå€æ°åã«å«ããå¿ èŠæ§ãäœäž
- ã³ãŒãã®å¯èªæ§ããäœäžããå¯èœæ§ããã
- å€æ°ã®åãå€æŽãããå Žåãå€æ°åãå€æŽããå¿
èŠããã
çŸä»£çãªããã°ã©ãã³ã°ã§ã¯ãå€æ°ã®åœ¹å²ãç®çãæ確ã«è¡šçŸããåœåãéèŠããåŸåã«ãããŸãã
ååœåèŠåã®ã¡ãªããã»ãã¡ãªãã
ååœåèŠåã«ã¯ãããããç¹åŸŽãããã䜿çšããç¶æ³ã«ãã£ãŠé©åãªéžæãç°ãªããŸããããã§ã¯ãäž»èŠãªåœåèŠåã®ã¡ãªãããšãã¡ãªããã解説ããŸãã
ã¹ããŒã¯ã±ãŒã¹ (Snake Case)
-
ã¡ãªãã
- åèªãåºåãããŠãããããå¯èªæ§ãé«ãã誀èªãå°ãªã
- Pythonãå§ãå€ãã®èšèªããã¬ãŒã ã¯ãŒã¯ã§æšæºçã«äœ¿ãããŠãããããä»ã®éçºè ãšã³ãŒããå ±æããéã«ç解ãããã
-
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- è€æ°ã®ã¢ã¯ã»ã¹ä¿®é£Ÿåãæ··ãããšèŠã¥ãããªãããšããã
- 䜿çšããèšèªã«ãã£ãŠã¯éåæãããå ŽåãããïŒäŸïŒJavaScriptïŒ
- å€æ°åãé·ããªããã¡
ã¢ãããŒã¹ããŒã¯ã±ãŒã¹ (UPPER_SNAKE_CASE)
-
ã¡ãªãã
- å®æ°ãè¡šãã®ã«äžè¬çã§ãã³ãŒãå
šäœã§ã®æå³ãæ確ã«ãªã
ïŒå®æ°ã§ããããšãäžç®ã§ãããïŒ - è€æ°ã®åèªãèŠèŠçã«åºå¥ãããã
- å®æ°ãè¡šãã®ã«äžè¬çã§ãã³ãŒãå
šäœã§ã®æå³ãæ確ã«ãªã
-
ãã¡ãªãã
- å€æ°ãšããŠäœ¿çšãããšåé·ã«ãªãããšããããã¡ãœããåãéå®æ°ã§ã¯ããŸãèŠãããªããããä»ã®éçºè ã«æ··ä¹±ãäžããå¯èœæ§ããã
ãã£ã¡ã«ã±ãŒã¹ (Camel Case)
-
ã¡ãªãã
- JavaScriptãJavaãªã©ãå€ãã®èšèªã§æšæºãšãããŠãããå¯èªæ§ãé«ã
- äžè²«ããŠäœ¿ãããšã§èå¥åã®çµ±äžæãåºã
-
ãã¡ãªãã
- åèªæ°ãå€ããªããšèªã¿ã¥ãããªãå¯èœæ§ããã
- ãã¹ã«ã«ã±ãŒã¹ãšæ··åšãããšèŠåããã®ãé£ãããªãå Žåããã
ãã¹ã«ã«ã±ãŒã¹ (Pascal Case)
-
ã¡ãªãã
- ã¯ã©ã¹ãã³ã³ã¹ãã©ã¯ã¿åã«é©ããŠããŠãå称ãã圹å²ãäžç®ã§åãã
- èŠæš¡ã®å€§ããã·ã¹ãã ã§å€çšãããçµç¹çãªæå³ãèªã¿åãããã
- éèŠãªå®çŸ©ã ãšåããããã
-
ãã¡ãªãã
- ä»ã®ã±ãŒã¹ïŒç¹ã«ãã£ã¡ã«ã±ãŒã¹ïŒãšæ··åšãããšçŽãããã
ã±ããã±ãŒã¹ (kebab-case)
-
ã¡ãªãã
- URLã®ãã¹ãCSSã¯ã©ã¹ãªã©ãåèªãæ確ã«åºåã£ãŠè¡šçŸã§ãã
- ãã䜿ãããå Žé¢ãéãããŠããããããã®çšéãã¯ã£ããããŠãã
-
ãã¡ãªãã
- äžéšã®ããã°ã©ãã³ã°èšèªã§ã¯äœ¿çšã§ããªããããçšéãéå®ããã
- ãã€ãã³ãæžç®æŒç®åãšèŠééãããã
ãã³ã¬ãªã¢ã³èšæ³ (Hungarian Notation)
-
ã¡ãªãã
- ãã¬ãã£ãã¯ã¹ã§åã䜿çšæå³ãèšèŒãããŠãããããå€æ°ã®åœ¹å²ãç解ãããã
- ç¹å®ã®åéïŒå€ãã³ãŒãããŒã¹ïŒã§çšãããç¶ããŠãããããã¬ã¬ã·ãŒãªã·ã¹ãã ã§ã®äºææ§ããã
-
ãã¡ãªãã
- åæšè«ãé²åããçŸä»£ã®èšèªã§ã¯åé·ã§ããå Žåãå€ã
- èšèªãIDEãæäŸããåæ å ±ãåŸãããæ©èœã掻çšãããªããããçŸä»£ã®éçºçŸå Žã§ã¯éæšå¥š
ååœåèŠåã¯ã䜿çšããæèãèšèªã®ç¹æ§ã«å¿ããŠéžæããããšãéèŠã§ããäŸãã°ãPythonã§ã¯ã¹ããŒã¯ã±ãŒã¹ãæšå¥šãããŠããŸãããJavaScriptã§ã¯ãã£ã¡ã«ã±ãŒã¹ãäžè¬çã§ãããããžã§ã¯ãã®èŠä»¶ããããŒã ã®æ¹éã«åŸã£ãŠé©åãªåœåèŠåãéžæããŸãããã
èšèªå¥ã®æšå¥šèŠå
Python
# å€æ°åãé¢æ°åïŒã¹ããŒã¯ã±ãŒã¹
user_name = "ç°äž 倪é"
# ã¯ã©ã¹åïŒãã¹ã«ã«ã±ãŒã¹
class UserAccount:
# å®æ°ïŒã¢ãããŒã¹ããŒã¯ã±ãŒã¹
MAX_VALUE = 100
JavaScript/TypeScript
// å€æ°åãé¢æ°åïŒãã£ã¡ã«ã±ãŒã¹
const userName = "ç°äž 倪é";
// ã¯ã©ã¹åïŒãã¹ã«ã«ã±ãŒã¹
class UserProfile {}
Java
// å€æ°åãã¡ãœããåïŒãã£ã¡ã«ã±ãŒã¹
String userName = "ç°äž 倪é";
public void getUserData() {}
// ã¯ã©ã¹åïŒãã¹ã«ã«ã±ãŒã¹
public class UserAccount {}
// å®æ°ïŒã¢ãããŒã¹ããŒã¯ã±ãŒã¹
public static final int MAX_CONNECTION = 100;
C#
// å€æ°åïŒãã£ã¡ã«ã±ãŒã¹
string userName = "ç°äž 倪é";
// ããããã£ãã¡ãœããåãã¯ã©ã¹åïŒãã¹ã«ã«ã±ãŒã¹
public string UserName { get; set; }
public class UserProfile {}
// å®æ°ïŒãã¹ã«ã«ã±ãŒã¹
const int MaxValue = 100;
C++
// å€æ°åïŒãã£ã¡ã«ã±ãŒã¹
string userName = "ç°äž 倪é";
// ã¯ã©ã¹åïŒãã¹ã«ã«ã±ãŒã¹
class UserAccount {};
// å®æ°ïŒã¢ãããŒã¹ããŒã¯ã±ãŒã¹
const int MAX_VALUE = 100;
Ruby
# å€æ°åãã¡ãœããåïŒã¹ããŒã¯ã±ãŒã¹
user_name = "ç°äž 倪é"
def get_user_data
# ã¯ã©ã¹åïŒãã¹ã«ã«ã±ãŒã¹
class UserProfile
# å®æ°ïŒã¢ãããŒã¹ããŒã¯ã±ãŒã¹
MAX_RETRY_COUNT = 3
PHP
// å€æ°åïŒãã£ã¡ã«ã±ãŒã¹
$userName = "ç°äž 倪é";
// ã¯ã©ã¹åïŒãã¹ã«ã«ã±ãŒã¹
class UserAccount {}
// ã¡ãœããåïŒãã£ã¡ã«ã±ãŒã¹
public function getUserData() {}
// å®æ°ïŒã¢ãããŒã¹ããŒã¯ã±ãŒã¹
define('MAX_VALUE', 100);
Go
// å€æ°åãé¢æ°åïŒãã£ã¡ã«ã±ãŒã¹ãŸãã¯ã¹ããŒã¯ã±ãŒã¹
userName := "ç°äž 倪é"
userAge := 20
// ã¯ã©ã¹åïŒãã¹ã«ã«ã±ãŒã¹
type UserAccount struct {
// åŠç
}
// å®æ°ïŒãã¹ã«ã«ã±ãŒã¹
const MaxValue = 100
Swift
// å€æ°åãé¢æ°åïŒãã£ã¡ã«ã±ãŒã¹
var userName = "ç°äž 倪é"
func getUserProfile() {}
// ã¯ã©ã¹åãæ§é äœåïŒãã¹ã«ã«ã±ãŒã¹
class UserAccount {}
struct UserProfile {}
// å®æ°ïŒãã£ã¡ã«ã±ãŒã¹
let maxRetryCount = 3
React
// ã³ã³ããŒãã³ãåïŒãã¹ã«ã«ã±ãŒã¹
const UserProfile = () => {}
// ããã¯é¢æ°ãå€æ°åïŒãã£ã¡ã«ã±ãŒã¹
const userName = "ç°äž 倪é";
const [isLoggedIn, setIsLoggedIn] = useState(false);
// ã«ã¹ã¿ã ããã¯ïŒuseãã¬ãã£ãã¯ã¹
const useUserData = () => {}
// å®æ°ïŒã¢ãããŒã¹ããŒã¯ã±ãŒã¹
const MAX_VALUE = 100;
VBAïŒãã³ã¬ãªã¢ã³èšæ³ã䜿ããªãïŒ
' å€æ°åïŒãã£ã¡ã«ã±ãŒã¹
Dim userName As String
' å®æ°ïŒã¢ãããŒã¹ããŒã¯ã±ãŒã¹
Const MAX_VALUE As Long = 100
åœåèŠåã®æ¯èŒè¡š
åœåèŠå | äž»ãªçšé | ã¡ãªãã | ãã¡ãªãã | æšå¥šãããèšèªã»ç°å¢ | äŸ |
---|---|---|---|---|---|
ã¹ããŒã¯ã±ãŒã¹ | ã»äžè¬çãªå€æ°å ã»é¢æ°å |
ã»å¯èªæ§ãé«ã ã»èª€èªãå°ãªã |
ã»é·ããªããã¡ ã»JavaScriptã§ã¯éåæã®åå ã«ãªãå Žåããã |
Python | user_name |
ã¢ãããŒã¹ããŒã¯ã±ãŒã¹ | å®æ° | ã»å®æ°ã§ããããšãäžç®ã§åãã ã»åèªåºåããæ確 |
ã»åé·ã«ãªãããã ã»å€æ°ãã¡ãœããåã«ã¯äžåã |
ã»C ã»C++ ã»Python |
MAX_SIZE |
ãã£ã¡ã«ã±ãŒã¹ | ã»äžè¬çãªå€æ°å ã»é¢æ°å |
ã»èªã¿ããã ã»JavaãJavaScriptãªã©ãå€ãã®èšèªã§æšæºç |
ã»é·ããªããšèªã¿ã«ãã ã»ãã¹ã«ã«ã±ãŒã¹ãšæ··åãããã |
ã»Java ã»JavaScript |
userName |
ãã¹ã«ã«ã±ãŒã¹ | ã»ã¯ã©ã¹å ã»ã³ã³ã¹ãã©ã¯ã¿ |
ã»ååãã圹å²ãåããããã ã»éèŠãªå®çŸ©ã瀺ãã®ã«ãã |
ãã£ã¡ã«ã±ãŒã¹ãšæ··åãããã | ã»C# ã»React |
UserAccount |
ã±ããã±ãŒã¹ | ã»URL ã»CSSã¯ã©ã¹å |
ã»åèªãæ確ã«åºåã£ãŠè¡šçŸã§ãã ã»çšéãã¯ã£ããããŠãã |
ã»ããã°ã©ãã³ã°èšèªã§ã¯äœ¿çšäžå¯ ã»ãã€ãã³ãšæžç®èšå·ã®èª€èªå¯èœ |
ã»HTML ã»CSS |
user-name |
ãã³ã¬ãªã¢ã³èšæ³ | ã»å€ãã³ãŒã ã»ç¹å®ã¢ããªã±ãŒã·ã§ã³ |
ã»åã䜿çšæå³ãæ確 ã»ã¬ã¬ã·ãŒã·ã¹ãã ã§ã®äºææ§ |
ã»çŸä»£ã®èšèªã§ã¯åé· ã»IDEã®åæ å ±ã«äŸåããåŸåã«äžåã |
ã»VBA ã»ã¬ã¬ã·ãŒã·ã¹ãã |
strUserName |
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åœåèŠåãéžæããéã«ã¯ã以äžã®ãã€ã³ããèæ ®ãããšè¯ãã§ãããã
1. ãããžã§ã¯ãã®èŠå
ãããžã§ã¯ãã§æ¢ã«äœ¿ãããŠããèŠåã«åãããããšã倧åã§ãã
2. èšèªããã¬ãŒã ã¯ãŒã¯ã®ã«ãŒã«
åè¿°ã®ã»ã¯ã·ã§ã³ã§èšè¿°ããããã«ã䜿çšäžã®ããã°ã©ãã³ã°èšèªããã¬ãŒã ã¯ãŒã¯ã«ã¯ãããããæšå¥šãããã¹ã¿ã€ã«ããããŸããããããåèã«ããããšã§ããã®æè¡ã³ãã¥ããã£å ã§ã®æšæºã«è¿ã¥ããããšãã§ããŸãã
3. ã³ãŒãã®ç®çãšæå³
å€æ°åãé¢æ°åã¯ããã®åœ¹å²ãæ©èœãæ確ã«ããããšã倧åã§ããæå³ãäŒãããããååãã€ããããšã§ãã³ãŒããèªã人ãç解ãããããªããŸãã
ã©ã®åœåèŠåãéžã¶ã«ããŠããããããããžã§ã¯ãã®ããŒãºã«åã£ããã®ã§ãããã確èªããŸãããã
åœåã«ããã泚æç¹
ã³ãŒãã®å¯èªæ§ãšä¿å®æ§ãé«ããããã以äžã®æ³šæç¹ãæèããŠåœåãè¡ããŸãããã
é¿ããã¹ãåºæ¬çãªåœåãã¿ãŒã³
- äžæåã®å€æ°åïŒã«ãŒãã«ãŠã³ã¿ãé€ãïŒ
- æå³ã®äžæ確ãªç¥èª
- äºçŽèªãšã®è¡çª
- é床ã«é·ãåœå
ããããééããã¿ãŒã³ãšæ¹åäŸ
1. æå³ãäžæ確ãªåœå
// æªãäŸ
const d = new Date(); // äžæåã®å€æ°å
const tmp = "äžæçãªå€"; // æå³ãäžæ確
const data = fetchUserData(); // ã©ããªããŒã¿ãäžæ確
// è¯ãäŸ
const currentDate = new Date(); // çšéãæ確
const temporaryValue = "äžæçãªå€"; // ç®çãæ確
const userProfile = fetchUserData(); // ããŒã¿ã®çš®é¡ãæ確
2. åé·ãªåæ å ±
// æªãäŸ
const strName = "ç°äžå€ªé"; // ãã³ã¬ãªã¢ã³èšæ³ã¯é¿ãã
const userArray = ['user1', 'user2']; // åæ
å ±ãåé·
// è¯ãäŸ
const name = "ç°äžå€ªé"; // ã·ã³ãã«ã§åå
const users = ['user1', 'user2']; // è€æ°åœ¢ã§è¡šçŸ
3. åŠå®åœ¢ãäºéåŠå®
// æªãäŸ
const isNotLoggedIn = false; // äºéåŠå®ã§æ··ä¹±
const disableButton = true; // ç¶æ
ãäžæ確
// è¯ãäŸ
const isLoggedIn = true; // è¯å®åœ¢ã§æ確
const isButtonEnabled = false; // isãã¬ãã£ãã¯ã¹ã®ã»ãããç¶æ
ãçŽæç
4. äžè²«æ§ã®ãªãåœåèŠå
// æªãäŸïŒæ··åšããåœåèŠåïŒ
const user_name = "倪é"; // ã¹ããŒã¯ã±ãŒã¹
const userAge = 20; // ãã£ã¡ã«ã±ãŒã¹
const UserData = {}; // ãã¹ã«ã«ã±ãŒã¹
// è¯ãäŸïŒtypescriptãªããã£ã¡ã«ã±ãŒã¹ã§çµ±äžïŒ
const userName = "倪é";
const userAge = 20;
const userData = {};
5. æ±çšçãããåå
// æªãäŸ
const info = getUserInfo(); // æ
å ±ã®çš®é¡ãäžæ確
const value = 100; // å€ã®æå³ãäžæ確
const list = [1, 2, 3]; // ãªã¹ãã®å
容ãäžæ確
// è¯ãäŸ
const userProfile = getUserInfo(); // æ
å ±ã®çš®é¡ãæ確
const maxRetryCount = 100; // å€ã®çšéãæ確
const numberList = [1, 2, 3]; // ãªã¹ãã®å
容ãæ確
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