It is an braced-init-list. A braced-init-list existed before std::initializer_list and is used to initialize aggregates. int arr[] = {1,2,3,4,5}; The above used a braced-init-list to initialize the array, no std::initializer_list is created. On the other hand when you do std::vector<int> foo = {1,2,3,4,5}; foo is not an aggregate so the braced-init-list is used to create … Read more
No. Curly braces do not have to be escaped in JSON.
The pair of braces forms a block, containing a list of statements. You need to use a return statement explicitly to make the function return something: (one) => { return oneTodo(one, action); // ^^^^^^ } If you omit the braces, the arrow function has a concise body, which consists solely of a single expression whose … Read more
You can escape the braces by doubling them up in your format strings: string.Format(“{{ foo: ‘{0}’, bar: ‘{1}’ }}”, foo, bar);
My take on it is that as a rule it is NOT a good practice. As always with rules there could be exceptions but very rare. It is not a good practice because Modern editors highlight the opening bracket when you place cursor on the closing one and vice versa. Most important: if there is … Read more
Why are braces used by default to enclose the function body instead of parentheses? The body of a function can be any compound command. This is typically { list; }, but three other forms of compound commands are technically allowed: (list), ((expression)), and [[ expression ]]. C and languages in the C family like C++, … Read more
Why are there braces but no semicolons? And why can’t I put the opening brace on the next line? Go uses brace brackets for statement grouping, a syntax familiar to programmers who have worked with any language in the C family. Semicolons, however, are for parsers, not for people, and we wanted to eliminate them … Read more
I do if I am using a resource which I want to free at a specific time eg: void myfunction() { { // Open serial port SerialPort port(“COM1”, 9600); port.doTransfer(data); } // Serial port gets closed here. for(int i = 0; i < data.size(); i++) doProcessData(data[i]); etc… }
You have found an easter egg in Python. It is a joke. It means that delimiting blocks by braces instead of indentation will never be implemented. Normally, imports from the special __future__ module enable features that are backwards-incompatible, such as the print() function, or true division. So the line from __future__ import braces is taken … Read more
You need to double the {{ and }}: >>> x = ” {{ Hello }} {0} ” >>> print(x.format(42)) ‘ { Hello } 42 ‘ Here’s the relevant part of the Python documentation for format string syntax: Format strings contain “replacement fields” surrounded by curly braces {}. Anything that is not contained in braces is … Read more