{"id":40574,"date":"2023-12-10T02:09:12","date_gmt":"2023-12-10T02:09:12","guid":{"rendered":"https:\/\/masterskills.org\/blog\/9-tip-giup-ban-viet-code-ngon-nghe-hon.html"},"modified":"2023-12-13T06:22:34","modified_gmt":"2023-12-13T06:22:34","slug":"9-tip-giup-ban-viet-code-ngon-nghe-hon","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/9-tip-giup-ban-viet-code-ngon-nghe-hon.html","title":{"rendered":"9 tip gi\u00fap b\u1ea1n vi\u1ebft code \u201cngon ngh\u1ebb\u201d h\u01a1n"},"content":{"rendered":"
\n

Vi\u1ebft code hi\u1ec3n nhi\u00ean l\u00e0 nhi\u1ec7m v\u1ee5 h\u00e0ng \u0111\u1ea7u n\u1ebfu b\u1ea1n l\u00e0 m\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. Tuy nhi\u00ean, c\u00f3 bao gi\u1edd b\u1ea1n ngh\u0129 code c\u1ee7a m\u00ecnh \u0111\u00e3 th\u1ef1c s\u1ef1 t\u1ed1t ch\u01b0a?<\/p>\n

Gi\u1eef cho code \u201cs\u1ea1ch \u0111\u1eb9p\u201d, r\u00f5 r\u00e0ng v\u00e0 d\u1ec5 \u0111\u1ecdc l\u00e0 m\u1ed9t th\u00f3i quen t\u1ed1t nh\u01b0ng kh\u00f4ng ph\u1ea3i developer n\u00e0o c\u0169ng quan t\u00e2m t\u1edbi. Th\u1eadt \u0111\u00e1ng ti\u1ebfc, b\u1edfi vi\u1ec7c code s\u1ea1ch th\u1eadt s\u1ef1 s\u1ebd thay \u0111\u1ed5i v\u00e0 \u1ea3nh h\u01b0\u1edfng t\u1edbi nhi\u1ec1u th\u1ee9 trong project c\u1ee7a b\u1ea1n.<\/p>\n

V\u1eady Code s\u1ea1ch – Clean Code l\u00e0 g\u00ec?<\/h2>\n

\"Clean<\/p>\n

Clean Code<\/strong> hi\u1ec3u t\u01b0\u1eddng minh ngh\u0129a l\u00e0 code s\u1ea1ch, code r\u00f5 r\u00e0ng, d\u1ec5 \u0111\u1ecdc.<\/p>\n

V\u1ec1 h\u00ecnh th\u1ee9c, Clean Code th\u1ec3 hi\u1ec7n nh\u01b0 sau:<\/p>\n

V\u1ec1 n\u1ed9i dung c\u1ea7n xem x\u00e9t:<\/p>\n

Nghe th\u00ec \u0111\u01a1n gi\u1ea3n v\u1eady th\u00f4i nh\u01b0ng kh\u00f4ng h\u1ec1 d\u1ec5 d\u00e0ng \u0111\u00e2u nh\u00e9.<\/p>\n

V\u00ec v\u1eady v\u1edbi b\u00e0i vi\u1ebft n\u00e0y, Masterskills s\u1ebd li\u1ec7t k\u00ea ra 9 tip gi\u00fap cho b\u1ea1n vi\u1ebft code “clean and better”<\/strong>. M\u1eddi b\u1ea1n \u0111\u1ecdc theo d\u00f5i!<\/p>\n

\u0110\u1eb7t t\u00ean c\u00f3 \u00fd ngh\u0129a<\/h2>\n

\"Clean<\/p>\n

Xin h\u1ecfi r\u1eb1ng: c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng, c\u00e1c bi\u1ebfn, c\u00e1c l\u1edbp, c\u00e1c h\u00e0m c\u00f3 ngh\u0129a l\u00e0 g\u00ec? C\u00f3 r\u1ea5t nhi\u1ec1u \u0111\u1ecbnh ngh\u0129a h\u1ecdc thu\u1eadt v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y, nh\u01b0ng khi suy ngh\u0129 m\u1ed9t c\u00e1ch t\u1ed5ng th\u1ec3, c\u00f3 th\u1ec3 kh\u1eb3ng \u0111\u1ecbnh \u0111\u00e2y ch\u00ednh l\u00e0 m\u1ed1i li\u00ean k\u1ebft gi\u1eefa c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean v\u00e0 s\u1ef1 logic c\u01a1 b\u1ea3n c\u1ee7a \u1ee9ng d\u1ee5ng m\u00ecnh \u0111ang vi\u1ebft.<\/p>\n

N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i t\u00ean kh\u00f4ng r\u00f5 r\u00e0ng, kh\u00f4ng m\u00f4 t\u1ea3 c\u01a1 b\u1ea3n v\u1ec1 c\u00e1c bi\u1ebfn, l\u1edbp, h\u00e0m th\u00ec b\u1ea1n \u0111ang t\u1ef1 tay \u201cche gi\u1ea5u\u201d c\u00e1c logic \u1ee9ng d\u1ee5ng v\u00e0 g\u00e2y kh\u00f3 kh\u0103n cho m\u00ecnh n\u1ebfu m\u1ed9t th\u1eddi gian sau c\u1ea7n update v\u00e0 ch\u1ec9nh s\u1eeda \u1ee9ng d\u1ee5ng. \u0110i\u1ec1u n\u00e0y c\u0169ng d\u1eabn nh\u1eefng ng\u01b0\u1eddi \u0111\u1ed3ng nghi\u1ec7p s\u1ebd \u0111\u1ecdc code c\u1ee7a b\u1ea1n sau n\u00e0y v\u00e0o m\u1ed9t m\u00ea cung kh\u00f4ng th\u1ea5y \u0111\u01b0\u1eddng \u0111i l\u1ed1i l\u1ea1i.<\/p>\n

\n

“T\u00f4i kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t l\u1eadp tr\u00ecnh vi\u00ean tuy\u1ec7t v\u1eddi; t\u00f4i ch\u1ec9 l\u00e0 m\u1ed9t l\u1eadp tr\u00ecnh vi\u00ean gi\u1ecfi v\u1edbi nh\u1eefng th\u00f3i quen tuy\u1ec7t v\u1eddi.” – Kent Beck<\/em><\/p>\n<\/blockquote>\n

M\u1ed9t bi\u1ebfn c\u00f3 t\u00ean l\u00e0 abc c\u00f3 ngh\u0129a l\u00e0 g\u00ec? Ch\u1ecbu lu\u00f4n! B\u1ea1n c\u00f3 th\u1ec3 s\u1ebd c\u1ea7n ph\u1ea3i \u0111\u1ecdc l\u1ea1i to\u00e0n b\u1ed9 code \u0111\u1ec3 hi\u1ec3u abc ngh\u0129a l\u00e0 g\u00ec!? T\u1ef1u chung v\u1ea5n \u0111\u1ec1, \u0111\u1ecdc code ki\u1ec3u n\u00e0y s\u1ebd c\u1ef1c k\u1ef3 v\u1ea5t v\u1ea3. Thay v\u00ec mu\u1ed1n bi\u1ec3u hi\u1ec7n danh s\u00e1ch kh\u00e1ch h\u00e0ng b\u1eb1ng bi\u1ebfn list1,<\/em> h\u00e3y d\u00f9ng listCustomer.<\/em> B\u1edfi v\u00ec list1<\/em> l\u00e0 m\u1ed9t t\u00ean v\u00f4 ngh\u0129a, d\u1ec5 g\u00e2y nh\u1ea7m l\u1eabn v\u00e0 l\u1ed9n x\u1ed9n khi \u0111\u1ecdc. \u0110i\u1ec1u n\u00e0y c\u0169ng \u0111\u00fang v\u1edbi vi\u1ec7c \u0111\u1eb7t t\u00ean cho class hay function.<\/p>\n

V\u1eady t\u00f3m l\u1ea1i t\u00ean bi\u1ebfn \u0111\u1ea1t y\u00eau c\u1ea7u ph\u1ea3i tr\u1ea3 l\u1eddi \u0111\u01b0\u1ee3c 3 c\u00e2u h\u1ecfi l\u1edbn:<\/p>\n

\u00a0<\/div>\n

B\u1ecf th\u00eam v\u00e0i gi\u00e2y \u0111\u1ec3 suy ngh\u0129 m\u1ed9t c\u00e1i t\u00ean chu\u1ea9n, ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c h\u00e0ng gi\u1edd \u0111\u1ed3ng h\u1ed3 sau n\u00e0y.<\/p>\n

C\u00e1c h\u00e0m, c\u00e1c l\u1edbp n\u00ean vi\u1ebft ng\u1eafn g\u1ecdn v\u00e0 l\u00e0m m\u1ed9t vi\u1ec7c duy nh\u1ea5t<\/h2>\n

B\u1ea1n \u0111\u00e3 bao gi\u1edd g\u1eb7p ph\u1ea3i m\u1ed9t h\u00e0m d\u00e0i h\u00e0ng tr\u0103m, th\u1eadm ch\u00ed h\u00e0ng ng\u00e0n d\u00f2ng ch\u01b0a? N\u1ebfu r\u1ed3i, b\u1ea1n h\u1eb3n ph\u1ea3i t\u01b0\u1edfng t\u01b0\u1ee3ng ra s\u1ebd \u0111au kh\u1ed5 nh\u01b0 n\u00e0o n\u1ebfu ta ph\u1ea3i duy\u1ec7t, \u0111\u1ecdc, hay ch\u1ec9nh s\u1eeda c\u00e1c h\u00e0m nh\u01b0 v\u1eady. C\u00e1c comment c\u00f3 l\u1ebd s\u1ebd gi\u00fap \u00edch m\u1ed9t ch\u00fat, tuy nhi\u00ean ch\u1ec9 \u1edf m\u1ee9c \u0111\u1ed9 r\u1ea5t h\u1ea1n ch\u1ebf.<\/p>\n

V\u1eady n\u00ean, h\u00e0m ph\u1ea3i ng\u1eafn h\u1ebft m\u1ee9c c\u00f3 th\u1ec3. M\u1ed9t h\u00e0m l\u00fd t\u01b0\u1edfng kh\u00f4ng n\u00ean vi\u1ebft qu\u00e1 20 d\u00f2ng. V\u1ec1 nguy\u00ean t\u1eafc, n\u1ebfu h\u00e0m qu\u00e1 d\u00e0i h\u00e3y chia nh\u1ecf th\u00e0nh c\u00e1c h\u00e0m con, m\u1ed7i h\u00e0m con th\u1ef1c hi\u1ec7n m\u1ed9t vi\u1ec7c duy nh\u1ea5t. T\u00ean c\u1ee7a h\u00e0m ph\u1ea3i th\u1ec3 hi\u1ec7n r\u00f5 t\u00e1c d\u1ee5ng duy nh\u1ea5t c\u1ee7a n\u00f3.<\/p>\n

V\u00ed d\u1ee5 m\u1ed9t h\u00e0m ph\u1ee9c t\u1ea1p nh\u01b0 GetCreditScore()<\/em> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u h\u00e0m tr\u1ee3 gi\u00fap nh\u1ecf h\u01a1n ki\u1ec3u d\u1ea1ng GetCreditReports(), ApplyCreditHistoryAge()<\/em> v\u00e0 FilterOutstandingMarks()…<\/em><\/p>\n

X\u00f3a b\u1ecf c\u00e1c \u0111o\u1ea1n code kh\u00f4ng c\u1ea7n thi\u1ebft<\/h2>\n

\"Clean<\/p>\n

Th\u00f3i quen x\u1ea5u gi\u1eef l\u1ea1i m\u1ed9t s\u1ed1 \u0111o\u1ea1n code d\u01b0 th\u1eeba l\u00e0 m\u1ed9t trong nh\u1eefng \u0111i\u1ec1u m\u00e0 l\u1eadp tr\u00ecnh vi\u00ean n\u00e0o c\u0169ng t\u1eebng tr\u1ea3i qua. Ch\u1eafc ch\u1eafn b\u1ea1n s\u1ebd quen thu\u1ed9c v\u1edbi k\u1ecbch b\u1ea3n th\u1ebf n\u00e0y: b\u1ea1n mu\u1ed1n s\u1eeda ch\u1eefa ho\u1eb7c t\u1ed1i \u01b0u h\u00f3a m\u1ed9t \u0111o\u1ea1n code, nh\u01b0ng sau khi comment v\u00e0 vi\u1ebft m\u1ed9t \u0111o\u1ea1n code m\u1edbi – v\u00e0 m\u1eb7c d\u00f9 n\u00f3 \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng th\u00ec b\u1ea1n v\u1eabn gi\u1eef l\u1ea1i \u0111o\u1ea1n code c\u0169 \u1edf \u0111\u00f3.<\/p>\n

Theo th\u1eddi gian nh\u1eefng comment \u0111\u1ea5y kh\u00f4ng c\u1ea7n thi\u1ebft n\u1eefa v\u00e0 s\u1ebd khi\u1ebfn cho file ngu\u1ed3n c\u1ee7a b\u1ea1n b\u1ecb l\u1ed9n x\u1ed9n. Do \u0111\u00f3, khi c\u00f3 m\u1ed9t \u0111o\u1ea1n code th\u1eeba, c\u00f3 c\u0169ng nh\u01b0 kh\u00f4ng th\u00ec ch\u00fang ta c\u1ea7n lo\u1ea1i b\u1ecf kh\u1ecfi source code lu\u00f4n \u0111\u1ec3 \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n s\u1ea1ch h\u01a1n nh\u00e9.<\/p>\n

Tr\u00e1nh r\u00fat g\u1ecdn code qu\u00e1 m\u1ee9c<\/h2>\n

C\u00f3 r\u1ea5t nhi\u1ec1u l\u1eadp tr\u00ecnh vi\u00ean mu\u1ed1n k\u1ebft h\u1ee3p clean code – code s\u1ea1ch<\/em> v\u1edbi clever code – code th\u00f4ng minh<\/em>, nh\u01b0 ki\u1ec3u d\u1ed3n 10 d\u00f2ng th\u00e0nh m\u1ed9t b\u1eb1ng c\u00e1ch n\u00e0o \u0111\u00f3 th\u00ec nh\u00ecn n\u00f3 s\u1ebd clean h\u01a1n. \u0110i\u1ec1u n\u00e0y ch\u1eafc ch\u1eafn s\u1ebd gi\u00fap \u0111o\u1ea1n code t\u1ed1n \u00edt kh\u00f4ng gian tr\u00ean m\u00e0n h\u00ecnh, tuy nhi\u00ean li\u1ec7u n\u00f3 th\u1ef1c s\u1ef1 d\u1ec5 hi\u1ec3u?<\/p>\n

C\u00e2u tr\u1ea3 l\u1eddi l\u00e0 \u0111\u00f4i khi c\u00f3 th\u1ec3, nh\u01b0ng ph\u1ea7n l\u1edbn kh\u1eb3ng \u0111\u1ecbnh l\u00e0 n\u00f3 kh\u00f4ng d\u1ec5 hi\u1ec3u ch\u00fat n\u00e0o c\u1ea3!<\/p>\n

Th\u00f4ng th\u01b0\u1eddng, vi\u1ec7c vi\u1ebft code \u201cth\u00f4ng minh\u201d th\u01b0\u1eddng l\u00e0 \u0111\u1ec3 th\u1ec3 hi\u1ec7n c\u00e1i t\u00f4i c\u00e1 nh\u00e2n, hay ng\u1ea7m th\u1ec3 hi\u1ec7n r\u1eb1ng \u201c\u00e0 \u0111\u1ea7u \u00f3c m\u00ecnh th\u00f4ng minh n\u00ean m\u1edbi ngh\u0129 ra \u0111\u01b0\u1ee3c nh\u01b0 v\u1eady\u201d. C\u0169ng c\u00f3 tr\u01b0\u1eddng h\u1ee3p ng\u01b0\u1eddi vi\u1ebft th\u00edch th\u00fa v\u1edbi th\u1eed th\u00e1ch t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t, nh\u01b0ng v\u00f4 t\u00ecnh l\u1ea1i l\u00e0m kh\u00f3 ng\u01b0\u1eddi \u0111\u1ecdc hi\u1ec3u code v\u1ec1 sau.<\/p>\n

\u00a0<\/div>\n

V\u00ec v\u1eady, \u0111\u1ec3 vi\u1ebft code s\u1ea1ch, b\u1ea1n h\u00e3y \u0111\u1eb7t c\u00e1i t\u00f4i c\u1ee7a m\u00ecnh ra sau, h\u00e3y t\u1ed1i \u01b0u code \u0111\u1ec3 c\u1ea3 ng\u01b0\u1eddi ti\u1ebfp theo l\u00e0m vi\u1ec7c v\u1edbi \u1ee9ng d\u1ee5ng c\u0169ng c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c. Th\u1eadm ch\u00ed m\u1ed9t th\u1eddi gian sau, ng\u01b0\u1eddi s\u1eed d\u1ee5ng code n\u00e0y v\u1eabn l\u00e0 b\u1ea1n, v\u00e0 b\u1ea1n l\u1ea1i kh\u00f4ng nh\u1edb nh\u1eefng l\u1ed1i t\u1eaft s\u1eed d\u1ee5ng trong \u0111o\u1ea1n code ng\u1eafn g\u1ecdn n\u00e0y c\u1ee7a m\u00ecnh ngh\u0129a l\u00e0 g\u00ec, c\u0169ng c\u00f3 th\u1ec3 l\u1eafm ch\u1ee9! Th\u1eadt k\u1ef3 c\u1ee5c n\u1ebfu b\u1ea1n n\u00f3i r\u1eb1ng kh\u00f4ng th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c m\u00ecnh \u0111\u00e3 t\u1eebng l\u00e0m g\u00ec ph\u1ea3i kh\u00f4ng?<\/p>\n

L\u1ef1a ch\u1ecdn ki\u1ebfn tr\u00fac ph\u00f9 h\u1ee3p v\u1edbi project<\/h2>\n

\"Clean<\/p>\n

C\u00f3 r\u1ea5t nhi\u1ec1u m\u00f4 h\u00ecnh v\u00e0 ki\u1ebfn tr\u00fac kh\u00e1c nhau m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o d\u1ef1 \u00e1n c\u1ee7a m\u00ecnh. Nh\u01b0ng h\u00e3y lu\u00f4n l\u01b0u \u00fd r\u1eb1ng, c\u1ea7n ch\u1ecdn \u0111\u00fang ki\u1ebfn tr\u00fac cho nhu c\u1ea7u c\u1ee7a b\u1ea1n, ch\u1ee9 kh\u00f4ng ph\u1ea3i ch\u1ecdn m\u1ed9t trong nh\u1eefng c\u00e1i t\u1ed1t nh\u1ea5t.<\/p>\n

V\u00ed d\u1ee5<\/strong>:<\/p>\n

N\u1eafm v\u1eefng s\u1eafc th\u00e1i ri\u00eang bi\u1ec7t c\u1ee7a ng\u00f4n ng\u1eef s\u1eed d\u1ee5ng<\/h2>\n

\"Clean<\/p>\n

M\u1ed9t trong nh\u1eefng kh\u00f3 kh\u0103n trong vi\u1ec7c th\u1ea1o m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh m\u1edbi l\u00e0 h\u1ecdc c\u00e1c s\u1eafc th\u00e1i t\u00e1ch n\u00f3 ra kh\u1ecfi t\u1ea5t c\u1ea3 c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c. Nh\u1eefng s\u1eafc th\u00e1i n\u00e0y c\u00f3 th\u1ec3 l\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa m\u1ed9t dirty code, ph\u1ee9c t\u1ea1p v\u00e0 clean code, d\u1ec5 b\u1ea3o tr\u00ec.<\/p>\n

H\u00e3y xem x\u00e9t Python, Java v\u00e0 JavaScript, 3 ng\u00f4n ng\u1eef n\u00e0y c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u1ea5t r\u00f5 r\u00e0ng. Trong khi Python n\u1ed5i b\u1eadt v\u1edbi c\u00e1c d\u00f2ng code ng\u1eafn g\u1ecdn v\u00e0 \u0111\u01a1n gi\u1ea3n th\u00ec Java l\u1ea1i t\u01b0\u1eddng minh theo c\u00e1ch kh\u00e1 d\u00e0i d\u00f2ng. V\u00ec v\u1eady m\u1ed7i ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u0111\u1ec1u c\u00f3 c\u00e1c s\u1eafc th\u00e1i ri\u00eang, tr\u01b0\u1edbc khi b\u1ea1n mu\u1ed1n code s\u1ea1ch th\u00ec ph\u1ea3i h\u1ecdc m\u00e0 hi\u1ec3u r\u00f5 ch\u00fang \u0111\u00e3 nh\u00e9!<\/p>\n

H\u1ecdc code s\u1ea1ch t\u1eeb c\u00e1c Master trong ng\u00e0nh<\/h2>\n

\"Clean<\/p>\n

\u00a0<\/div>\n

N\u1ebfu b\u1ea1n mu\u1ed1n vi\u1ebft code s\u1ea1ch, t\u1ed1t nh\u1ea5t b\u1ea1n n\u00ean \u201cm\u1ee5c s\u1edf th\u1ecb\u201d xem code s\u1ea1ch s\u1ebd tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0o v\u00e0 c\u1ed1 g\u1eafng hi\u1ec3u t\u1ea1i sao clean code l\u1ea1i l\u00e0 nh\u01b0 v\u1eady. Kh\u00f4ng c\u00f3 c\u00e1ch n\u00e0o \u0111\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y t\u1ed1t h\u01a1n vi\u1ec7c nghi\u00ean c\u1ee9u c\u00e1c file m\u00e3 ngu\u1ed3n c\u1ee7a nh\u1eefng ng\u01b0\u1eddi \u0111i tr\u01b0\u1edbc, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng d\u1ef1 \u00e1n c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c coi l\u00e0 Master trong ng\u00e0nh.<\/p>\n

T\u1ea5t nhi\u00ean l\u00e0 b\u1ea1n kh\u00f4ng th\u1ec3 v\u00e0o tr\u1ee5 s\u1edf ch\u00ednh c\u1ee7a Microsoft v\u00e0 xem l\u00e9n c\u00e1c d\u1ef1 \u00e1n c\u1ee7a h\u1ecd, nh\u01b0ng b\u1ea1n lu\u00f4n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c d\u1ef1 \u00e1n m\u00e3 ngu\u1ed3n m\u1edf n\u1ed5i ti\u1ebfng. H\u00e3y th\u1eed v\u1edbi c\u00e1c d\u1ef1 \u00e1n tuy\u1ec7t v\u1eddi tr\u00ean Github xem n\u00e0o!<\/p>\n

M\u1ed9t trong nh\u1eefng l\u00fd do c\u00e1c d\u1ef1 \u00e1n m\u00e3 ngu\u1ed3n m\u1edf r\u1ea5t \u0111\u01b0\u1ee3c hoan ngh\u00eanh \u0111\u00f3 l\u00e0 gi\u00fap ng\u01b0\u1eddi kh\u00e1c c\u00f3 th\u1ec3 h\u1ecdc h\u1ecfi nhi\u1ec1u \u0111i\u1ec1u t\u1eeb code c\u1ee7a m\u00ecnh.<\/p>\n

Vi\u1ebft comment h\u1ee3p l\u00fd<\/h2>\n

Vi\u1ebft b\u00ecnh lu\u1eadn h\u1ee3p l\u00fd, th\u00edch h\u1ee3p l\u00e0 l\u1eddi khuy\u00ean l\u00e2u \u0111\u1eddi nh\u1ea5t trong th\u1ebf gi\u1edbi l\u1eadp tr\u00ecnh. Th\u1ef1c t\u1ebf, ngay t\u1eeb khi \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u1ec1 comment, nh\u1eefng \u201cnewbie\u201d th\u01b0\u1eddng c\u00f3 xu h\u01b0\u1edbng l\u1ea1m d\u1ee5ng b\u00ecnh lu\u1eadn qu\u00e1 m\u1ee9c – m\u00f4 t\u1ea3 nh\u1eefng \u0111i\u1ec1u kh\u00f4ng c\u1ea7n ph\u1ea3i m\u00f4 t\u1ea3, thi\u1ebfu quan \u0111i\u1ec3m v\u1ec1 m\u1ed9t “comment h\u1ee3p l\u00fd” c\u00f3 ngh\u0129a l\u00e0 g\u00ec.<\/p>\n

\u0110\u00e2y l\u00e0 m\u1ed9t nguy\u00ean t\u1eafc nh\u1ecf: comment t\u1ed3n t\u1ea1i \u0111\u1ec3 gi\u1ea3i th\u00edch t\u1ea1i sao m\u1ed9t \u0111o\u1ea1n code t\u1ed3n t\u1ea1i ch\u1ee9 kh\u00f4ng ph\u1ea3i nh\u1eefng g\u00ec m\u00e0 \u0111o\u1ea1n code \u0111\u00f3 th\u1ef1c s\u1ef1 l\u00e0m. N\u1ebfu code \u0111\u01b0\u1ee3c vi\u1ebft \u0111\u1ee7 s\u1ea1ch, n\u00f3 t\u1ef1 gi\u1ea3i th\u00edch nh\u01b0 nh\u1eefng g\u00ec n\u00f3 l\u00e0m – comment ch\u1ec9 n\u00ean l\u00e0m s\u00e1ng t\u1ecf v\u1ec1 \u00fd \u0111\u1ecbnh \u0111\u1eb1ng sau l\u00fd do t\u1ea1i sao n\u00f3 \u0111\u01b0\u1ee3c vi\u1ebft.<\/p>\n

Refactor, Refactor, Refactor<\/h2>\n

Code refactoring<\/strong> l\u00e0 ho\u1ea1t \u0111\u1ed9ng ch\u1ec9nh s\u1eeda khi\u1ebfn source code d\u1ec5 \u0111\u1ecdc h\u01a1n, \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c khoa h\u1ecdc h\u01a1n, v\u00e0 c\u00f3 th\u1ec3 c\u00f3 ki\u1ebfn tr\u00fac\/c\u1ea5u tr\u00fac t\u1ed1t h\u01a1n nh\u01b0ng kh\u00f4ng l\u00e0m thay \u0111\u1ed5i h\u00e0nh vi c\u1ee7a h\u1ec7 th\u1ed1ng v\u1ec1 m\u1eb7t ch\u1ee9c n\u0103ng.<\/p>\n

Hi\u1ec3u \u0111\u01a1n gi\u1ea3n, refactor (t\u00e1i c\u1ea5u tr\u00fac, c\u1ea3i ti\u1ebfn m\u00e3 ngu\u1ed3n) l\u00e0 m\u1ed9t c\u00e1ch k\u1ef3 di\u1ec7u \u0111\u1ec3 l\u00e0m s\u1ea1ch m\u00e3. C\u00f3 th\u1ec3 xem \u0111\u00e2y l\u00e0 m\u1eb9o quan tr\u1ecdng nh\u1ea5t n\u1ebfu b\u1ea1n mu\u1ed1n code c\u1ee7a m\u00ecnh \u0111\u01b0\u1ee3c \u201cclean\u201d.<\/p>\n

H\u1ebft r\u1ed3i \u0111\u1ea5y, n\u1ebfu b\u1ea1n \u0111ang t\u00ecm hi\u1ec3u v\u00e0 mu\u1ed1n vi\u1ebft code s\u1ea1ch th\u00ec c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng th\u1eed xem nh\u00e9. N\u1ebfu c\u00f3 m\u1eb9o n\u00e0o hay ho, r\u1ea5t hoan ngh\u00eanh b\u1ea1n chia s\u1ebb th\u00eam v\u1edbi Masterskills.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Vi\u1ebft code hi\u1ec3n nhi\u00ean l\u00e0 nhi\u1ec7m v\u1ee5 h\u00e0ng \u0111\u1ea7u n\u1ebfu b\u1ea1n l\u00e0 m\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. Tuy nhi\u00ean, c\u00f3 bao gi\u1edd b\u1ea1n ngh\u0129 code c\u1ee7a m\u00ecnh \u0111\u00e3 th\u1ef1c s\u1ef1 t\u1ed1t ch\u01b0a?<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[452],"tags":[],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/40574"}],"collection":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/comments?post=40574"}],"version-history":[{"count":0,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/40574\/revisions"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=40574"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=40574"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=40574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}