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How can I grep for a string that begins with a dash/hyphen?
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The dash is a special character in Bash as noted at http://tldp.org/LDP/abs/html/special-chars.html#DASHREF. So escaping this once just gets you past Bash, but Grep still has it's own meaning to dashes (by providing options).
So you really need t...
How to sort the result from string_agg()
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With postgres 9.0+ you can write:
select string_agg(product,' | ' order by product) from "tblproducts"
Details here.
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Escape double quote character in XML
Is there an escape character for a double quote in xml? I want to write a tag like:
8 Answers
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Combine :after with :hover
I want to combine :after with :hover in CSS (or any other pseudo selector). I basically have a list and the item with the selected class has an arrow shape applied using :after . I want the same to be true for objects that are being hovered over but cant quite get it to work. Heres the cod...
split string only on first instance - java
I want to split a string by '=' charecter. But I want it to split on first instance only. How can I do that ? Here is a JavaScript example for '_' char but it doesn't work for me
split string only on first instance of specified character
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What is the difference between declarative and imperative programming? [closed]
...rary/bb397906.aspx for examples, from item in collection where item%2 != 0 select item would be the declarative form. Calling a function doesn't become declarative programming just because that function is in the System.Linq namespace.
– Pete Kirkham
Aug 28 '15...
How to check if my string is equal to null?
...mpty, false otherwise
return myString.isEmpty() // Returns `true` if this char sequence is empty (contains no characters), false otherwise
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Android Spanned, SpannedString, Spannable, SpannableString and CharSequence
...d strings:
Spanned , SpannedString , Spannable , SpannableString and CharSequence .
2 Answers
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How to use `string.startsWith()` method ignoring the case?
... really will do a toUpperCase in a 1mb String just to compare 4-10 inicial characters?
– Dyorgio
Apr 7 '16 at 16:52
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The simplest way to comma-delimit a list?
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The StringJoiner class.
Example:
// Util method for strings and other char sequences
List<String> strs = Arrays.asList("1", "2", "3");
String listStr1 = String.join(",", strs);
// For any type using streams and collectors
List<Object> objs = Arrays.asList(1, 2, 3);
String listStr2 ...