\u0645\u062a\u062f \u0648\u0642\u062a\u06cc \u0641\u0642\u0637 \u0628\u0647 \u06cc\u06a9 \u0633\u0648\u0632\u0646 \u0627\u0632 \u062f\u0627\u062e\u0644 \u0627\u0646\u0628\u0627\u0631 \u06a9\u0627\u0647<\/strong> \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u060c \u0628\u0647\u062a\u0631\u06cc\u0646 \u0627\u0646\u062a\u062e\u0627\u0628 \u0627\u0632 \u0646\u0638\u0631 \u0633\u06cc\u0646\u062a\u06a9\u0633 \u0648 \u0639\u0645\u0644\u06a9\u0631\u062f\u060c \u0645\u062a\u062f \u0627\u06af\u0631 \u0647\u06cc\u0686 \u0639\u0646\u0635\u0631\u06cc \u067e\u06cc\u062f\u0627 \u0646\u0634\u0648\u062f\u060c \u0645\u0642\u062f\u0627\u0631 \u0646\u062a\u06cc\u062c\u0647:<\/p>\n \u0627\u06af\u0631 \u0641\u0642\u0637 \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631<\/strong> \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc \u2192 \u0627\u06af\u0631 \u0686\u0646\u062f \u0645\u0642\u062f\u0627\u0631<\/strong> \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc \u2192 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u0645\u062b\u0627\u0644 \u0633\u0627\u062f\u0647 \u0628\u0627 \u0622\u0631\u0627\u06cc\u0647\u200c\u0627\u06cc \u0627\u0632 \u0631\u0634\u062a\u0647\u200c\u0647\u0627:<\/p>\n \u0647\u0645\u0627\u0646 \u0645\u062b\u0627\u0644 \u0628\u062f\u0648\u0646 ES6 \u0648 arrow function:<\/p>\n \u0645\u062a\u062f \u0627\u06af\u0631 \u0634\u0631\u0637 \u0634\u0645\u0627 \u0686\u0646\u062f \u0646\u062a\u06cc\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f\u060c \/\/ { name: “birch”, count: 4 }<\/span><\/p>\n<\/div>\n<\/div>\n \u062f\u0631 \u0627\u06cc\u0646 \u062d\u0627\u0644\u062a\u060c \u0627\u06af\u0631 \u0647\u0645\u0647\u200c\u06cc \u0646\u062a\u0627\u06cc\u062c \u0631\u0627 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u062f\u060c \u0628\u0647\u062a\u0631 \u0627\u0633\u062a \u0627\u0632 \u06af\u0627\u0647\u06cc \u0644\u0627\u0632\u0645 \u0627\u0633\u062a \u0627\u0632 \u06cc\u06a9 \u0634\u0631\u0637 \u06cc\u06a9\u0633\u0627\u0646 \u062f\u0631 \u0686\u0646\u062f \u062c\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u062d\u0627\u0644\u062a\u060c \u0628\u0647\u062a\u0631 \u0627\u0633\u062a \u062a\u0627\u0628\u0639 \u062a\u0633\u062a \u0631\u0627 \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0646\u06cc\u062f<\/strong>.<\/p>\n \u0645\u062b\u0627\u0644:<\/p>\n \u0633\u0627\u062f\u0647\u060c \u062a\u0645\u06cc\u0632 \u0648 \u0642\u062f\u0631\u062a\u0645\u0646\u062f<\/p>\n \u0645\u0627\u0646\u0646\u062f \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0632\u06cc\u0627\u062f \u0628\u0647 \u0645\u062a\u062f \u0628\u0647 \u062e\u0627\u0637\u0631 \u0628\u0633\u067e\u0627\u0631\u06cc\u062f:<\/p>\n \u0627\u06af\u0631 \u0686\u06cc\u0632\u06cc \u067e\u06cc\u062f\u0627 \u0646\u0634\u0648\u062f \u2192 \u0628\u0631\u0627\u06cc \u0686\u0646\u062f \u0646\u062a\u06cc\u062c\u0647 \u2192 \u0627\u0632 \u0627\u06af\u0631 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u0628\u0627 \u0633\u0627\u06cc\u0631 \u0645\u062a\u062f\u0647\u0627\u06cc \u0622\u0631\u0627\u06cc\u0647 \u062f\u0631 JavaScript \u0628\u06cc\u0634\u062a\u0631 \u0622\u0634\u0646\u0627 \u0634\u0648\u06cc\u062f\u060c \u0645\u0637\u0627\u0644\u0639\u0647\u200c\u06cc \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u06a9\u0627\u0645\u0644 Array Methods<\/strong> \u0628\u0633\u06cc\u0627\u0631 \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n \n \n \nArray.find<\/code><\/strong> \u062f\u0631 JavaScript \u06cc\u06a9 \u0631\u0627\u0647 \u0633\u0627\u062f\u0647 \u0648 \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0628\u0631\u0627\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0646 \u0648 \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u062f\u0646 \u0627\u0648\u0644\u06cc\u0646 \u0639\u0646\u0635\u0631\u06cc<\/strong> \u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 \u0634\u0631\u0637 \u0645\u0634\u062e\u0635 (\u062a\u0627\u0628\u0639 \u062a\u0633\u062a) \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u067e\u0627\u0633 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\nfind()<\/code> \u0627\u0633\u062a!<\/p>\n
\n\u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0627\u0632 Array.find \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645\u061f<\/h2>\n
find()<\/code> \u0628\u0633\u06cc\u0627\u0631 \u0634\u0628\u06cc\u0647 \u0628\u0647 Array.filter<\/code><\/strong> \u0627\u0633\u062a\u060c \u0628\u0627 \u0627\u06cc\u0646 \u062a\u0641\u0627\u0648\u062a\u200c\u0647\u0627\u06cc \u0645\u0647\u0645:<\/p>\n\n
find()<\/code> \u0641\u0642\u0637 \u0627\u0648\u0644\u06cc\u0646 \u0639\u0646\u0635\u0631<\/strong> \u0645\u0646\u0637\u0628\u0642 \u0628\u0627 \u0634\u0631\u0637 \u0631\u0627 \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f<\/p>\n<\/li>\nundefined<\/code><\/strong> \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f<\/p>\n<\/li>\nfilter()<\/code> \u0647\u0645\u06cc\u0634\u0647 \u0622\u0631\u0627\u06cc\u0647\u200c\u0627\u06cc \u0627\u0632 \u0646\u062a\u0627\u06cc\u062c<\/strong> (\u0635\u0641\u0631 \u06cc\u0627 \u0628\u06cc\u0634\u062a\u0631) \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f<\/p>\n<\/li>\n<\/ul>\n\n
find()<\/code><\/p>\n<\/li>\nfilter()<\/code><\/p>\n<\/li>\n<\/ul>\n
\n\u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Array.find<\/h2>\n
find()<\/code> \u062e\u06cc\u0644\u06cc \u0633\u0627\u062f\u0647 \u0627\u0633\u062a. \u062a\u0646\u0647\u0627 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0627\u062c\u0628\u0627\u0631\u06cc \u0622\u0646 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062a\u0633\u062a (testing function)<\/strong> \u0627\u0633\u062a:<\/p>\narray.find<\/span>(testingFunction);
\n<\/code><\/div>\n<\/div>\n
\n\u0645\u062b\u0627\u0644 \u0633\u0627\u062f\u0647<\/h2>\n
const<\/span> trees = [
\n\"birch\"<\/span>,
\n\"maple\"<\/span>,
\n\"oak\"<\/span>,
\n\"poplar\"<\/span>
\n];<\/code><\/code>const<\/span> result = trees.find<\/span>(tree<\/span><\/span> => tree.startsWith<\/span>(“m”<\/span>));<\/code><\/code>\/\/ “maple”<\/span><\/p>\n<\/div>\n<\/div>\nconst<\/span> result = trees.find<\/span>(function<\/span>(tree<\/span>) {
\nreturn<\/span> tree.startsWith<\/span>(\"m\"<\/span>);
\n});<\/code><\/code>\/\/ “maple”<\/span><\/div>\n<\/div>\n
\n\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Array.find \u0628\u0627 Object\u0647\u0627<\/h2>\n
find()<\/code> \u0628\u0631\u0627\u06cc \u062c\u0633\u062a\u062c\u0648 \u062f\u0631 \u0622\u0631\u0627\u06cc\u0647\u200c\u0627\u06cc \u0627\u0632 Object<\/strong>\u0647\u0627 \u0647\u0645 \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0627\u0633\u062a:<\/p>\nconst<\/span> trees = [
\n{ name<\/span>: \"birch\"<\/span>, count<\/span>: 4<\/span> },
\n{ name<\/span>: \"maple\"<\/span>, count<\/span>: 5<\/span> },
\n{ name<\/span>: \"oak\"<\/span>, count<\/span>: 2<\/span> }
\n];<\/code><\/code>const<\/span> result = trees.find<\/span>(tree<\/span><\/span> => tree.name<\/span> === “oak”<\/span>);<\/code><\/code>\/\/ { name: “oak”, count: 2 }<\/span><\/p>\n<\/div>\n<\/div>\n
\n\u062a\u0648\u062c\u0647: \u0641\u0642\u0637 \u0627\u0648\u0644\u06cc\u0646 \u0646\u062a\u06cc\u062c\u0647 \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f<\/h2>\n
find()<\/code> \u0641\u0642\u0637 \u0627\u0648\u0644\u06cc\u0646 \u0645\u0648\u0631\u062f<\/strong> \u0631\u0627 \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f:<\/p>\nconst<\/span> result = trees.find<\/span>(tree<\/span><\/span> => tree.count<\/span> > 2<\/span>);<\/code><\/p>\nfilter()<\/code> \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n
\n\u0646\u06a9\u062a\u0647 \u062d\u0631\u0641\u0647\u200c\u0627\u06cc: \u062c\u062f\u0627 \u06a9\u0631\u062f\u0646 \u062a\u0627\u0628\u0639 \u062a\u0633\u062a<\/h2>\n
const<\/span> deciduous = [
\n{ name<\/span>: \"birch\"<\/span>, count<\/span>: 4<\/span> },
\n{ name<\/span>: \"maple\"<\/span>, count<\/span>: 5<\/span> },
\n{ name<\/span>: \"oak\"<\/span>, count<\/span>: 2<\/span> }
\n];<\/code><\/code>const<\/span> evergreens = [
\n{ name<\/span>: “cedar”<\/span>, count<\/span>: 2<\/span> },
\n{ name<\/span>: “fir”<\/span>, count<\/span>: 6<\/span> },
\n{ name<\/span>: “pine”<\/span>, count<\/span>: 3<\/span> }
\n];<\/code><\/code>\/\/ \u062a\u0627\u0628\u0639 \u062a\u0633\u062a<\/span>
\nconst<\/span> hasFiveOrMore<\/span> = el => el.count<\/span> >= 5<\/span>;<\/p>\n<\/code><\/code>const<\/span> decResult = deciduous.find<\/span>(hasFiveOrMore);
\n\/\/ { name: “maple”, count: 5 }<\/span><\/p>\n<\/code><\/code>const<\/span> evgResult = evergreens.find<\/span>(hasFiveOrMore);
\n\/\/ { name: “fir”, count: 6 }<\/span><\/p>\n<\/div>\n<\/div>\n
\n\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 index<\/h2>\n
filter()<\/code>\u060c \u0645\u062a\u062f find()<\/code> \u0647\u0645 \u06cc\u06a9 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc index<\/strong> \u062f\u0631 \u0627\u062e\u062a\u06cc\u0627\u0631 \u0634\u0645\u0627 \u0645\u06cc\u200c\u06af\u0630\u0627\u0631\u062f:<\/p>\nconst<\/span> evergreens = [
\n{ name<\/span>: \"cedar\"<\/span>, count<\/span>: 2<\/span> },
\n{ name<\/span>: \"fir\"<\/span>, count<\/span>: 6<\/span> },
\n{ name<\/span>: \"pine\"<\/span>, count<\/span>: 3<\/span> }
\n];<\/code><\/code>\/\/ \u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u0645 \u0639\u0646\u0635\u0631 \u0627\u0648\u0644 \u0646\u0627\u062f\u06cc\u062f\u0647 \u06af\u0631\u0641\u062a\u0647 \u0634\u0648\u062f<\/span>
\nconst<\/span> result = evergreens.find<\/span>((tree, i<\/span><\/span>) => {
\nif<\/span> (tree.count<\/span> > 1<\/span> && i !== 0<\/span>) return<\/span> true<\/span>;
\n});<\/code><\/code>\/\/ { name: “fir”, count: 6 }<\/span><\/p>\n<\/div>\n<\/div>\nindex<\/code> \u0646\u06cc\u0627\u0632 \u067e\u06cc\u062f\u0627 \u0646\u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f\u060c \u0627\u0645\u0627 \u062f\u0627\u0646\u0633\u062a\u0646 \u0648\u062c\u0648\u062f \u0622\u0646 \u062f\u0631 \u0628\u0639\u0636\u06cc \u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0645\u0641\u06cc\u062f \u0627\u0633\u062a.<\/p>\n
\n\u062c\u0645\u0639\u200c\u0628\u0646\u062f\u06cc (Conclusion)<\/h2>\n
Array.find<\/code><\/strong> \u06cc\u06a9 \u0627\u0628\u0632\u0627\u0631 \u0633\u0627\u062f\u0647 \u0627\u0645\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u0628\u0631\u0627\u06cc \u062c\u0633\u062a\u062c\u0648 \u062f\u0631 \u0622\u0631\u0627\u06cc\u0647\u200c\u0647\u0627\u06cc JavaScript \u0627\u0633\u062a.<\/p>\n\n
find()<\/code> \u2192 \u0641\u0642\u0637 \u06cc\u06a9 \u0639\u0646\u0635\u0631<\/strong> \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f<\/p>\n<\/li>\nundefined<\/code><\/p>\n<\/li>\nfilter()<\/code> \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f<\/p>\n<\/li>\n<\/ul>\n