What “ means
It starts a quotation in English, but not every language. In German-style „quotes“, “ closes it instead.
Quotation marks evolved gradually: before the seventeenth century, double commas in handwritten manuscripts flagged important passages. Printers later developed conventions for enclosing quotations.
Curly quotes give prose typographic polish.
Calling someone “helpful” can sound skeptical. Leave off the quotes if you mean the praise.
Don't confuse it with
2Questions people ask
1Should I use it in code?
No. Use the required straight quotes to enclose code strings; curly quotes can cause syntax errors.
How to type “
“\201CCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

