linkedinlearning1 Learning ECMScript 6+ (ES6+) 2. Variables and Data Structures 1) let keyword - let is helping us enforce block scoping in JavaScript. // Example 1(1) - var var topic = "JavaScript"; if (topic) { var topic = "ECMAScript"; console.log("block", topic); } console.log("global", topic); // expected "global ECMAScript" // Example 1(2) - let var topic = "JavaScript"; if (topic) { let topic = "ECMAScript"; console.log("block", topic.. 2021. 2. 25. 이전 1 다음
