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1 ) 1 ͷ ͍ ͍ τ ί ɾ ٻ Ί Δ ͷ
ౖ ౭ ͷ બ
1 ) 1 & 3 , " * ( *
ʙ 5 3 " $ , "
: 6 5" " # &
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2
ࣗݾհ
Ѩ෦༏ଠ
!ZVUBBCF
$6/&-803,$0
-5%JO/**("5"
৽ׁૹܭը
J04"OESPJE 1)1
%FWFMPQFS
νκʔ͔Θ͍͍ɻ ελϯϓങ͍·ͨ͠
ͱ͔ࢁܗͱ͔ٶͱ͔ࢁʹૹܭը
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3
࣍
"HFOEB
ൺֱରݴޠɾ໔ࣄ߲
1)1͍͍ͱ͜
1)1΄͍͠ͷ
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ൺֱରݴޠɾ໔ࣄ߲
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5
ൺֱରݴޠ
ɾ4XJGU J04"QQ
ɾ,PUMJO "OESPJE"QQ
ɾ+BWB4DSJQU &4Y
ɾ(PMBOH 4FSWFS*OGSBTUSVDUVSF
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6
໔ࣄ߲
ɾࠓճ͓͢Δͷ͋͘·Ͱʮݴޠ༷ʯͰ͢ɻط
ଘͷϑϨʔϜϫʔΫͳͲͰ࣮ݱͰ͖͍ͯͯɺʮϑ
ϨʔϜϫʔΫʹґଘ͠ͳ͍ݴޠ༷ʯΛ୳ٻ͢Δҙຯ
Ͱ͓͠·͢ɻ
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1)1͍͍ͱ͜
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8
ΤϧϏεԋࢉࢠ
textView.text = message ?: "͞Α͏ͳΒ"
,PUMJO
$hoge = $fuga ?: “fuga”;
1)1
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9
/VMM߹ମԋࢉࢠ
$a = $a ?? $b;
1)1
$a ??= $b;
1)1
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10
/VMM߹ମԋࢉࢠσϑΥϧτҾ
function hoge(?int $x = null): void {
$x = $x ?? 1;
}
1)1
function hoge(?int $x = null): void {
$x ??= 1;
}
1)1
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11
BSSBZ@NBQ
$ss = ["apple", "banana", "orange"];
$ss.array_map(function ($s) {
// do something
});
1)1
let array = [1,2,3,4,5]
array.forEach { val in
// do something
}
4XJGU
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1)1΄͍͠ͷ
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13
ࡾ߲ԋࢉࢠͷωετ
$result = 'a' ? 'b' : 'c' ? 'd' : ‘e';
// ‘d’
1)1
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14
ࡾ߲ԋࢉࢠͷωετ
$result = 'a' ? 'b' : 'c' ? 'd' : ‘e';
// ‘d’
1)1
ී௨ʹͯ͠
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15
ࡾ߲ԋࢉࢠͷωετ
$result = 'a' ? 'b' : 'c' ? 'd' : ‘e';
// ‘d’
1)1
ී௨ʹͯ͠
ͦͦॻ͘ͳ
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16
ΤϧϏεԋࢉࢠ
a?.let {
// do something
} ?: run {
// do something
}
,PUMJO
$_GET[‘hoge’]->let {
// do something
} ?: run {
// do something
}
1)1
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17
σϑΥϧτҾ
function hoge(?int $x = null): void {
$x = $x ?? 1;
}
1)1
fun hoge(x: Int = 1, y: Int = 2) {
}
,PUMJO
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18
DPNQBDU.BQ7BMVFT
$fruits = array(
“apple” => 100,
“orange” => 200,
“grape” => null);
$fruits.array_map(function ($k, $v) {
if (isset($v)) {
// value͕nullͷ߹ཁૉΛআ
}
});
1)1
let fruits: [String: Int?]
= ["apple": 100, "orange": 200, "grape": nil]
let result = fruits.compactMapValues({$0})
4XJGU
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19
ϚϧνεϨουɾඇಉظॲཧ
function hoge() {
$img1 = ը૾1Λऔಘ͢Δ;
$img2 = ը૾2Λऔಘ͢Δ;
// 2ͭͷը૾Λhogehoge͢Δ
}
1)1
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20
ϚϧνεϨουɾඇಉظॲཧ
function hoge() {
$img1 = ը૾1Λऔಘ͢Δ;
$img2 = ը૾2Λऔಘ͢Δ;
// 2ͭͷը૾Λhogehoge͢Δ
}
1)1
͜ͷͭฒྻॲཧ
ͯ͠΄͍͠
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21
ϚϧνεϨουɾඇಉظॲཧ
$source = \Rx\Observable::fromArray([1, 2, 3, 4]);
$subscription = $source->subscribe(new \Rx\Observer\CallbackObserver(
function ($x) {
echo 'Next: ', $x, PHP_EOL;
},
function (Exception $ex) {
echo 'Error: ', $ex->getMessage(), PHP_EOL;
},
function () {
echo 'Completed', PHP_EOL;
}
));
3Y1)1
self.loginGateway
.fetchAdminUser(uid: uid)
.subscribe(
onNext: { [weak self] enitites in
// do something
},
onError: { [weak self] error in
// do something
}).disposed(by: self.disposeBag)
}
3Y4XJGU
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ϚϧνεϨουɾඇಉظॲཧ
3Y1)1
$source = \Rx\Observable::fromArray([1, 2, 3, 4]);
$subscription = $source->subscribe(new \Rx\Observer\CallbackObserver(
function ($x) {
echo 'Next: ', $x, PHP_EOL;
},
function (Exception $ex) {
echo 'Error: ', $ex->getMessage(), PHP_EOL;
},
function () {
echo 'Completed', PHP_EOL;
}
));
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ϚϧνεϨουɾඇಉظॲཧ
self.loginGateway
.fetchAdminUser(uid: uid)
.subscribe(
onNext: { [weak self] enitites in
// do something
},
onError: { [weak self] error in
// do something
}).disposed(by: self.disposeBag)
}
3Y4XJGU
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͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠