Using backticks permits you to use alternative characters. In query writing it’s not such a problem, but if one assumes you can just use backticks, I would assume it lets you get away with ridiculous stuff like SELECT `id`, `my name`, `another field` , `field,with,comma` Which does of course generate badly named tables. If you’re … Read more
The major one is the ability to nest them, commands within commands, without losing your sanity trying to figure out if some form of escaping will work on the backticks. An example, though somewhat contrived: deps=$(find /dir -name $(ls -1tr 201112[0-9][0-9]*.txt | tail -1l) -print) which will give you a list of all files in … Read more
This is a feature called template literals. They were called “template strings” in prior editions of the ECMAScript 2015 specification. Template literals are supported by Firefox 34, Chrome 41, and Edge 12 and above, but not by Internet Explorer. Examples: http://tc39wiki.calculist.org/es6/template-strings/ Official specification: ECMAScript 2015 Language Specification, 12.2.9 Template Literal Lexical Components (a bit dry) Template … Read more