掌握 JavaScript 比较：从基础到高级

let x = 5;let y = 10;console.log(x &gt; y); // falseconsole.log(x <h3>      <strong>字符串比较</strong></h3><p>字符串根据其 unicode 值按字典顺​​序（字典顺序）进行比较。</p><p><strong>示例：</strong><br></p><pre class="brush:php;toolbar:false">let str1 = "apple";let str2 = "banana";console.log(str1  str2); // falseconsole.log(str1 == str2); // false

let num = 10;let str = "10";console.log(num == str); // true (number 10 is converted to string "10")console.log(num === str); // false (strict equality checks both value and type)

let num = 10;let str = "10";console.log(num === str); // falseconsole.log(num === 10); // true

let a = null;let b = undefined;console.log(a == b); // true (null == undefined)console.log(a === b); // false (strict equality checks both value and type)console.log(a == 0); // false (null is not equal to 0)console.log(a === 0); // false (strict equality checks both value and type)console.log(b == 0); // false (undefined is not equal to 0)console.log(b === 0); // false (strict equality checks both value and type)

let age = 25;let name = "Alice";let isStudent = true;// Comparing numbersconsole.log(age > 20); // trueconsole.log(age  "Bob"); // false// Comparing different typesconsole.log(age == "25"); // true (number 25 is converted to string "25")console.log(age === "25"); // false (strict equality checks both value and type)// Comparing with null and undefinedlet user = null;let userStatus = undefined;console.log(user == userStatus); // true (null == undefined)console.log(user === userStatus); // false (strict equality checks both value and type)