Ejemplos sobre "Advanced Functions"

Author: pauek

2023-03-09/advanced-functions.js

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+
+const suma = function (a, b) { 
+  console.log(a + b); 
+};
+
+(suma)(5, 6);
+// 1. Obtener lo que haya en 'suma'
+// 2. Una vez tengo la función: la llamo.
+
+const adiciona = suma;
+adiciona(15, 25);
+
+const fabrica = function (x) {
+  return function () {
+    console.log(`fabrica ${x}`);
+  }
+};
+
+(fabrica(7))();
+
+const A = [
+  function (a, b) { return a + b; },
+  function (a, b) { return a - b; },
+  function (a, b) { return a * b; },
+];
+
+for (const f of A) {
+  console.log(f(5, 7));
+}

2023-03-09/array-functional-methods.js

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+

2023-03-09/arrow-functions.js

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+const fsuma = function (a, b) {
+  return a + b;
+};
+const asuma = (a, b) => a + b;
+
+const funcArray = [(a, b) => a + b, (a, b) => a - b, (a, b) => a * b];
+
+const menor = (a, b) => a < b;
+const adams = () => 42;
+const id = (x) => x;
+
+adams();
+menor(1, 3);
+id("hola");
+
+const showTwoLines = () => {
+  console.log("line 1");
+  console.log("line 2");
+};
+
+const makePerson = (name, age) => ({
+  type: "Person",
+  name,
+  age,
+});
+
+console.log(makePerson("James", 27));

2023-03-09/make-counter.js

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+
+const makeCounter = () => {
+  let count = 0;
+  return () => {
+    count++;
+    return count;
+  }
+};
+
+let c1 = makeCounter();
+console.log(c1());
+console.log(c1());
+console.log(c1());

2023-03-09/methods.js

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+"use strict";
+
+const saluda = function () {
+  console.log(`Hola, soy ${this.name}, qué tal!`);
+}
+
+let person = {
+  name: "James",
+  saluda,
+};
+
+person.saluda(); // left-object ('person')
+saluda();        // NOO left-object

2023-03-09/scopes.js

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+
+let x = 3;
+
+{
+  let x = 7;
+  x++;
+  console.log(x);
+}
+
+console.log(x);
+
+function suma(a, b) {
+  return a + b;
+}
+
+suma(3, 5);

2023-03-09/unbinding.js

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+
+let carol = {
+  name: "Carol",
+  sayHi: function () {
+    console.log(`Hi, I'm ${this.name}, how are you?`);
+  },
+};
+
+let sayHi = carol.sayHi;
+let carolSayHi = sayHi.bind(carol);
+
+carolSayHi();
+
+let bella = {
+  name: "Bella",
+  sayHi: carolSayHi,
+};
+// No left-object
+bella.sayHi();
+
+

2023-03-09/use-strict.js

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+"use strict";
+
+function showMeThis() {
+  console.log(this);
+}
+
+showMeThis();