I'm not sure what's the best way to word this question but basically I'm working on my second Javascript project to build a Random Quote Generator when I noticed there's some syntax issues on my third quote (please see first screenshot) when my strings include words like "don't" or "can't". I'm not sure if it's because I wrote my strings as '"quote" - author' but this person on Youtube (please see second screenshot) wrote his strings using the same format but hadn't had any syntax issue.

Screenshot1

Screenshot2

CodePudding user response：

All of the above lines are allowed in JavaScript:

// delimiter: double quotes
// don't need to escape single quotes
// must escape double quotes
const s1 = "a 'test' a";     
const s2 = "a \"test\" a";

// delimiter: single quotes
// must escape single quotes
// don't need to escape double quotes
const s3 = 'a \'test\' a';
const s4 = 'a "test" a';

// delimiter: grave accent (template literal)
// don't need to escape double quotes
// neither single quotes
const s5 = `a 'test' a`;
const s6 = `a "test" a`;

// string interpolation
const n = 10;
const s7 = `n value is ${n}`;  // evaluates to: n value is 10

Reference: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String

CodePudding user response：

Using the Escape Character () "Then he said, "Hello, World!""

let quote = "Then he said, \"Hello, World!\"";