Operat\u00f6rler say\u0131sal ya da mant\u0131ksal de\u011ferler aras\u0131nda i\u015flem yap\u0131lmas\u0131n\u0131 sa\u011flayan sembollerdir. Operat\u00f6rler t\u00fcm dillerde kullan\u0131lan bir \u00f6zelliktir. Operat\u00f6rleri g\u00f6revlerine g\u00f6re maddeler halinde inceleyece\u011fiz.<\/p>\n\n\n\n
Aritmetiksel Operat\u00f6rler(+, – , -deger, *, \/, ~\/, %)<\/strong><\/p>\n\n\n\n Matematiksel i\u015flemlerde kullan\u0131lan operat\u00f6rlerdir.<\/p>\n\n\n\n E\u015fitlik ve \u0130li\u015fkisel Operat\u00f6rler(==, !=, >, <, >=, <=)<\/strong><\/p>\n\n\n\n Bu operat\u00f6rlerde ise iki de\u011ferin e\u015fitlik\/de\u011fillik, b\u00fcy\u00fckl\u00fck\/k\u00fc\u00e7\u00fckl\u00fck kontrolleri yap\u0131l\u0131r.<\/p>\n\n\n\n T\u00fcr Test Operat\u00f6rleri(as, is, is!)<\/strong><\/p>\n\n\n\n Bir de\u011fi\u015fkenin t\u00fcr\u00fcn\u00fcn kontrol\u00fc i\u00e7in kullan\u0131lan ifadelerdir. \u00d6rne\u011fin bir yaz\u0131 de\u011fi\u015fkenimiz var fakat bunun yaz\u0131 t\u00fcr\u00fcnde bir de\u011fi\u015fken oldu\u011funu bilmiyoruz. Ba\u015fka yerlerde bunu yaz\u0131 olarak kullanmak istiyoruz. Hata almamak i\u00e7in bu de\u011fi\u015fkenin t\u00fcr\u00fcn\u00fc teyit etmemiz gerekmektedir. (“Yaz\u0131” is String)<\/strong> \u015feklinde bir tan\u0131mlama yapar\u0131z. Bu ifade bize true yada false olarak boolean bir de\u011fer d\u00f6nd\u00fcr\u00fcr.<\/p>\n\n\n\n A\u015fa\u011f\u0131daki \u00f6rne\u011fimizde text ifadesinin uzunlu\u011funu yazd\u0131ran bir fonksiyonumuz mevcut. Fakat g\u00f6nderilen parametre t\u00fcr\u00fc “var” t\u00fcr\u00fcnde oldu\u011fu i\u00e7in, bu ifadenin uzunlu\u011funu veren fonksiyonu mevcut de\u011fildir. Biz burada \u00f6nce t\u00fcr\u00fcn\u00fcn yaz\u0131 oldu\u011funu kontrol ediyoruz. Ard\u0131ndan as<\/strong> ile bu t\u00fcr\u00fcn yaz\u0131 oldu\u011funu ve alt \u00f6zelliklerini kullanabilece\u011fimizi s\u00f6yl\u00fcyoruz. Do\u011frudan as ifadesini kullanm\u0131\u015f olsayd\u0131k, t\u00fcr int<\/strong> bir de\u011fer geldi\u011finde hata alacakt\u0131k.<\/p>\n\n\n\n Atama Operat\u00f6rleri<\/strong><\/p>\n\n\n\n Bu operat\u00f6rler bir de\u011fi\u015fkene de\u011fer atama i\u015flemlerinde kullan\u0131l\u0131r. Normal de\u011fer atama i\u015flemleri =<\/strong> ile yap\u0131lmaktad\u0131r. =<\/strong> ifadesinin ba\u015f\u0131na di\u011fer operat\u00f6rleri ekleyerek basit ve h\u0131zl\u0131 atama i\u015flemleri mevcuttur.<\/p>\n\n\n\n Mant\u0131ksal Operat\u00f6rler(!ifade, &&, ||)<\/strong><\/p>\n\n\n\n Ve, veya kap\u0131lar\u0131 ile ifade edilen mant\u0131ksal operat\u00f6rlerdir. Boolean de\u011ferlerini birle\u015ftirip tek bir ifade orataya \u00e7\u0131kartabilirsiniz. !ifade<\/strong> \u015feklindeki yap\u0131, mevcut ifadenin tersini al\u0131r. Yani boolean ifadenin de\u011feri true ise false olur. &&<\/strong> ifadesi logic olarak ve<\/strong> kap\u0131s\u0131na denk gelmektedir. ||<\/strong> ifadesi ise veya<\/strong> kap\u0131s\u0131na denk gelmektedir.<\/p>\n\n\n\n Operat\u00f6rler say\u0131sal ya da mant\u0131ksal de\u011ferler aras\u0131nda i\u015flem yap\u0131lmas\u0131n\u0131 sa\u011flayan sembollerdir. Operat\u00f6rler t\u00fcm dillerde kullan\u0131lan bir \u00f6zelliktir. Operat\u00f6rleri g\u00f6revlerine g\u00f6re maddeler halinde inceleyece\u011fiz. Aritmetiksel Operat\u00f6rler(+, – , -deger, *, \/, ~\/, %) Matematiksel i\u015flemlerde kullan\u0131lan operat\u00f6rlerdir. E\u015fitlik ve \u0130li\u015fkisel Operat\u00f6rler(==, !=, >, <, >=, <=) Bu operat\u00f6rlerde ise iki de\u011ferin e\u015fitlik\/de\u011fillik, b\u00fcy\u00fckl\u00fck\/k\u00fc\u00e7\u00fckl\u00fck kontrolleri yap\u0131l\u0131r. T\u00fcr…<\/p>\n","protected":false},"author":1,"featured_media":2190,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[26,28,27],"post_series":[],"class_list":["post-1968","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dart","tag-dart","tag-dartpad","tag-flutter","entry","has-media"],"yoast_head":"\nprint(1 + 4); \/\/ \u00c7\u0131kt\u0131: 5\nprint(4 - 5); \/\/ \u00c7\u0131kt\u0131: -1\nprint(4 * 3); \/\/ \u00c7\u0131kt\u0131: 12\nprint(5 \/ 2); \/\/ \u00c7\u0131kt\u0131: 2.5\nprint(10 ~\/ 4); \/\/ \u00c7\u0131kt\u0131: 2\nprint(7 % 3); \/\/ \u00c7\u0131kt\u0131: 1\n\n\/\/ Dart dili\u00a0prefix(\u00f6n ek) ve postfix(son ek) art\u0131\u015f\/azal\u0131\u015f\u0131 destekler. (++var, --var, var++, var--)\n\/\/ A\u015fa\u011f\u0131daki \u00f6rne\u011fi yararl\u0131 olaca\u011f\u0131n\u0131 d\u00fc\u015f\u00fcnd\u00fc\u011f\u00fcm i\u00e7in dart programlama sitesinden ald\u0131m.\n\nvar a, b;\n\na = 0;\nb = ++a; \/\/ \u00d6nce a de\u011ferini artt\u0131r, sonra b de\u011ferine ata.\nassert(a == b); \/\/ 1 == 1\n\na = 0;\nb = a++; \/\/ \u00d6nce a de\u011ferini b de\u011ferine ata, sonra a de\u011ferini artt\u0131r.\nassert(a != b); \/\/ 1 != 0\n\na = 0;\nb = --a; \/\/ \u00d6nce a de\u011ferini azalt, sonra b de\u011ferine ata\nassert(a == b); \/\/ -1 == -1\n\na = 0;\nb = a--; \/\/ \u00d6nce a de\u011ferini b de\u011ferine ata, sonra a de\u011ferini azalt.\nassert(a != b); \/\/ -1 != 0<\/code><\/pre>\n\n\n\nprint(3==3); \/\/ \u00c7\u0131kt\u0131: true\nprint(5!=3); \/\/ \u00c7\u0131kt\u0131: true\nprint(1>3); \/\/ \u00c7\u0131kt\u0131: false\nprint(8<3); \/\/ \u00c7\u0131kt\u0131: false\nprint(3>=3); \/\/ \u00c7\u0131kt\u0131: true\nprint(3<=1); \/\/ \u00c7\u0131kt\u0131: false<\/code><\/pre>\n\n\n\nprintTextLength(dynamic text) {\n if(text is String) {\n print((text as String).length);\n }\n}\n\n\/\/ Kullan\u0131m\u0131\nprintTextLength(\"\u0130zzet \u00d6zt\u00fcrk\");<\/code><\/pre>\n\n\n\nvar a = 5;\nvar b = 3;\n\na ??= b; \/\/ E\u011fer a'n\u0131n de\u011feri null ise, b'nin de\u011ferini a'ya ata. \u00c7\u0131kt\u0131: a=5, b=3\na *= 5; \/\/ a = a * 5; ile ayn\u0131 ifadedir. a de\u011ferini 5 ile \u00e7arp\u0131p kendisine atar. \u00c7\u0131kt\u0131: a=25\na %= 2; \/\/ a = a % 2; ile ayn\u0131 ifadedir. a de\u011ferinin 2 ile modunu al\u0131p, a de\u011ferine atar. \u00c7\u0131kt\u0131: a=1<\/code><\/pre>\n\n\n\nint a = 5;\nint b = 3;\nbool boolean = false;\n \nif(!boolean && (a == 5 || b == 8)) {\n print(\"Success\");\n}\n\n\/\/ \u00c7\u0131kt\u0131: Success<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"