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How to use double or single brackets, parentheses, curly braces
...$default}
hello
and several more
Also, brace expansions create lists of strings which are typically iterated over in loops:
$ echo f{oo,ee,a}d
food feed fad
$ mv error.log{,.OLD}
(error.log is renamed to error.log.OLD because the brace expression
expands to "mv error.log error.log.OLD")
$ for ...
How can I parse JSON with C#?
...rpose. They are SerializeObject(Object obj) and DeserializeObject<T>(String json):
Product product = new Product();
product.Name = "Apple";
product.Expiry = new DateTime(2008, 12, 28);
product.Price = 3.99M;
product.Sizes = new string[] { "Small", "Medium", "Large" };
string json = JsonConver...
Immutable class?
...e, not immutable.
// notQuiteImmutableList contains "a", "b", "c"
List<String> notQuiteImmutableList= new NotQuiteImmutableList(Arrays.asList("a", "b", "c"));
// now the list contains "a", "b", "c", "d" -- this list is mutable.
notQuiteImmutableList.getList().add("d");
One way to get aroun...
How to concatenate string variables in Bash
In PHP, strings are concatenated together as follows:
30 Answers
30
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Getting the last element of a split string array
...commas and space. If there are no separators it should return the original string.
8 Answers
...
Android Json and null values
...eveloper.android.com/reference/org/json/JSONObject.html#isNull%28java.lang.String%29
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What is the canonical way to trim a string in Ruby without creating a new string?
...strip! looks cleaner - its a pity it returns nil instead of the unmodified string. Unless someone posts a better ans.. you're getting the accepted bit.
– Gishu
Jun 16 '09 at 12:00
...
Parameterize an SQL IN clause
...ls|scruffy|rubyonrails|'
LIKE '%|' + Name + '|%'
So here's the C# code:
string[] tags = new string[] { "ruby", "rails", "scruffy", "rubyonrails" };
const string cmdText = "select * from tags where '|' + @tags + '|' like '%|' + Name + '|%'";
using (SqlCommand cmd = new SqlCommand(cmdText)) {
c...
How can I convert a stack trace to a string?
... the easiest way to convert the result of Throwable.getStackTrace() to a string that depicts the stacktrace?
31 Answers
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How to find all occurrences of a substring?
Python has string.find() and string.rfind() to get the index of a substring in a string.
20 Answers
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