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The conditional (ternary) operator is the only JavaScript operator that takes three operands: a condition followed by a question mark (?), then an expression to execute if the condition is truthy followed by a colon (:), and finally the expression to execute if the condition is falsy. This operator is frequently used as a shortcut for the if statement.
Template literal uses backticks.
`\`` === '`' // --> true
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Multiline string: a string that can span multiple lines.
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String formatting: the ability to substitute part of the string for the values of variables or expressions. This feature is also called string interpolation.
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HTML escaping: the ability to transform a string so that it is safe to include in HTML.