This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
const anExampleVariable:number [] = [1,2,3,4,5,6,7]; | |
const anExampleVariable2:number [] = []; | |
anExampleVariable.map(item => { | |
anExampleVariable2.push(item * 2) | |
}) | |
console.log(...anExampleVariable2) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
const WebToggle = () => { | |
const [toggle, setToggle] = useState<boolean>(false); | |
toggle ? '#000' : '#fff'; | |
return ( | |
<div> | |
<h1>WebToggle</h1> | |
<button onClick={() => { | |
setToggle(!toggle); | |
}} | |
style={{ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import React, {useState} from "react"; | |
export default function Index () { | |
const [count, setCount] = useState(0); | |
return ( | |
<> | |
test ui app | |
{count} | |
<div> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
//正解 | |
import java.util.Scanner; | |
public class Main { | |
public static void main(String[] args) { | |
Scanner sc = new Scanner(System.in); | |
// 最初の#を追加する | |
StringBuilder sb = new StringBuilder("#"); | |
for (int i = 0; i < 3; i++ ) { | |
// 10新数ベースの色入力 (R G B) | |
int a = sc.nextInt(); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import React from 'react'; | |
interface TextBoxState { | |
text: string; | |
} | |
class TextBox extends React.Component<{}, TextBoxState> { | |
constructor(props: {}) { | |
super(props); | |
this.state = { |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
//クラス名は必ずMainにする必要があります。 | |
import java.util.*; | |
public class Main { | |
public static void main(String args[] ) throws Exception { | |
Scanner sc = new Scanner(System.in); | |
String s = sc.next(); | |
String s2 = sc.next(); | |
String s3 = sc.next(); | |
int sleng = s.length(); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
String x = "sss"; | |
if (x.endWith("s") && x.startWith("s") ) { | |
// other code | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
public class UpperCaseTest { | |
public static void main (String[] args) { | |
// toUpperCaseTest | |
String stunum = ""; | |
String upperStunum = stunum.toUpperCase(); | |
System.out.println(upperStunum); | |
// toLowerCaseTest | |
String myName = ""; | |
String lowerStunum = myName.toLowerCase(); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
public class StrUtil { | |
public static void main(String[] args) { | |
// 文字列編集 | |
String str = "aaa/aaaaaaa___________a"; | |
// lastIndexOf -> 一致する複数の文字列の最後のやつを返す | |
// endStr.length() | |
String endStr = "/"; | |
int endIndex = str.lastIndexOf(endStr) + endStr.length(); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
set number | |
set t_Co=256 | |
set cmdheight=2 | |
set backspace=indent,eol,start | |
call plug#begin() | |
Plug 'vim-airline/vim-airline' | |
Plug 'vim-airline/vim-airline-themes' | |
Plug 'ryanoasis/vim-devicons' | |
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } } |
NewerOlder