Your problem is that argument 29..30+40+50..52 is treated as a string literal in your .\eraseme.ps1 29..30+40+50..52 call – it is not recognized as an expression. To force recognition as an expression, enclose the argument in (…), the grouping operator: .\eraseme.ps1 (29..30+40+50..52) The same applies if you want to use output from (another) command as a … Read more
Short answer: Whenever referring to a nested name that is a dependent name, i.e. nested inside a template instance with unknown parameter. Long answer: There are three tiers of entities in C++: values, types, and templates. All of those can have names, and the name alone doesn’t tell you which tier of entity it is. … Read more
Yes, there is a difference. These are legal: h = { :$in => array } h = { :’a.b’ => ‘c’ } h[:s] = 42 but these are not: h = { $in: array } h = { ‘a.b’: ‘c’ } # but this is okay in Ruby2.2+ h[s:] = 42 You can also use … Read more
In C and in C++ single quotes identify a single character, while double quotes create a string literal. ‘a’ is a single a character literal, while “a” is a string literal containing an ‘a’ and a null terminator (that is a 2 char array). In C++ the type of a character literal is char, but … Read more
I believe that all the previously proposed solutions (apart from those that require specific implementations) result in the comments being included in the output HTML, even if they are not displayed. If you want a comment that is strictly for yourself (readers of the converted document should not be able to see it, even with … Read more
As documented under CREATE TABLE Syntax: Note The older TYPE option was synonymous with ENGINE. TYPE was deprecated in MySQL 4.0 and removed in MySQL 5.5. When upgrading to MySQL 5.5 or later, you must convert existing applications that rely on TYPE to use ENGINE instead. Therefore, you want: CREATE TABLE dave_bannedwords( id INT(11) NOT … Read more
To obtain the value, consider: function ref(obj, str) { str = str.split(“.”); for (var i = 0; i < str.length; i++) obj = obj[str[i]]; return obj; } var obj = { a: { b: 1, c : { d : 3, e : 4}, f: 5 } } str=”a.c.d” ref(obj, str) // 3 or in … Read more
The r means that the string is to be treated as a raw string, which means all escape codes will be ignored. For an example: ‘\n’ will be treated as a newline character, while r’\n’ will be treated as the characters \ followed by n. When an ‘r’ or ‘R’ prefix is present, a character … Read more
Objective-C methods are designed to be self documenting, and they borrow from the rich tradition of Smalltalk. I’ll try to explain what you have here, -(NSInteger) pickerView:(UIPickerView*)pickerView numberOfRowsInComponent:(NSInteger)component. – (NSInteger) This first portion indicates that this is an Objective C instance method that returns a NSInteger object. the – (dash) indicates that this is an … Read more
A for loop in java has the following structure – for (initialization statement; condition check; update) loop body; As you can see, there are four statements here – Initialization statement: This statement is executed only once, when the loop is entered for the first time. This is an optional statement, meaning you can choose keep … Read more