グローバルスコープの学習

js/index.js

@@ -1,12 +1,17 @@
 "use strict";
-function getFirstElement(arr) {
-    return arr[0];
+function sampleFunction3() {
+    const x = 1;
+    if (x == 1) {
+        const y = 2;
+        console.log(y);
+        console.log(`if文内${globalVariable}`);
+    }
+    for (let i = 0; i < 1; i++) {
+        const z = 3;
+        console.log(`for文内:${globalVariable}`);
+    }
+    console.log(`関数内:${globalVariable}`);
 }
-//number型の配列
-const numbers = [1, 2, 3, 4, 5];
-const firstNumber = getFirstElement(numbers);
-console.log(firstNumber);
-// string型の配列
-const strings = ["りんご", "みかん", "バナナ"];
-const firstString = getFirstElement(strings);
-console.log(firstString);
+const globalVariable = 10;
+console.log(`グローバルスコープ:${globalVariable}`);
+sampleFunction3();

src/index.ts

@@ -1,22 +1,20 @@
-if (true){
-    let sum:number=0;
-    sum=3+5;
-    console.log(sum);
-}
-console.log(sum);
+function sampleFunction3():void{
+    const x=1;
 
-for(let i=0;i<10;i++){
-    let sum:number=0;
-    sum=i+10;
-    console.log(`S{i}:${sum}`);
-}
-console.log(sum);
-console.log(i);
+    if(x==1){
+        const y=2;
+        console.log(y);
+        console.log(`if文内${globalVariable}`);
+    }
 
-function sampleFunction():void{
-    const x=1;
-    console.log(x);
+    for(let i=0;i<1;i++){
+        const z=3;
+        console.log(`for文内:${globalVariable}`);
+    }
+    console.log(`関数内:${globalVariable}`)
 }
-sampleFunction();
-console.log(x);
-defined
+
+const globalVariable:number=10;
+console.log(`グローバルスコープ:${globalVariable}`);
+
+sampleFunction3();