构建 JavaScript 代码：可读性和可维护性的最佳实践

// function to greet a userfunction greet(name) {  return `hello, ${name}!`;}// module to handle user interactionsconst usermodule = {  greet: function(name) {    return `hello, ${name}!`;  },  farewell: function(name) {    return `goodbye, ${name}!`;  }};console.log(greet("alice"));console.log(usermodule.farewell("bob"));

// good variable nameslet username = "john";let userage = 30;// good function namefunction calculatetotal(price, quantity) {  return price * quantity;}

function addnumbers(a, b) {  return a + b;}let result = addnumbers(3, 4);console.log(result);

let x = 10; // assignment statementlet y = x + 5; // expression statementconsole.log(y); // function call statement

// conditional statementif (x &gt; 5) {  console.log("x is greater than 5");} else {  console.log("x is 5 or less");}// loop statementfor (let i = 0; i <h2>      <strong>分号</strong></h2><p>分号用于终止 javascript 中的语句。虽然 javascript 具有自动分号插入 (asi) 功能，但显式包含分号以避免潜在问题通常是一个好习惯。</p><h3>      <strong>1. 显式分号</strong></h3><p>在语句末尾显式添加分号可以使您的代码更清晰并降低出错的风险。</p><h3>      <strong>示例：</strong></h3><pre class="brush:php;toolbar:false">let a = 10;let b = 20;let sum = a + b;console.log(sum);

let a = 10let b = 20let sum = a + bconsole.log(sum)

// this is a single-line commentlet x = 10; // assigning the value 10 to x

/*this is a multi-line comment.it can span multiple lines and is useful for explaining complex code.*/function addnumbers(a, b) {  return a + b;}

/** * Adds two numbers. * @param {number} a - The first number. * @param {number} b - The second number. * @returns {number} The sum of the two numbers. */function addNumbers(a, b) {  return a + b;}