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How do I use the ternary operator ( ? : ) in PHP as a shorthand for “if / else”?
Based on the examples from this page , I have the working and non-working code samples below.
14 Answers
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jQuery UI Sortable Position
... to the events, specifically you want the stop event, the ui.item property and .index(), like this:
$("#sortable").sortable({
stop: function(event, ui) {
alert("New position: " + ui.item.index());
}
});
You can see a working demo here, remember the .index() value is zero-based, so...
'Missing contentDescription attribute on image' in XML
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Follow this link for solution: Android Lint contentDescription warning
Resolved this warning by setting attribute android:contentDescription
for my ImageView
android:contentDescription="@string/desc"
Android Lint support in ADT 16 throws this warning to e...
How do I use a file grep comparison inside a bash if/else statement?
...t status is 0 if any line was selected, 1 otherwise;
if any error occurs and -q was not given, the exit status is 2.
if grep --quiet MYSQL_ROLE=master /etc/aws/hosts.conf; then
echo exists
else
echo not found
fi
You may want to use a more specific regex, such as ^MYSQL_ROLE=master$, to avo...
How to properly add include directories with CMake
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This way, the header files will appear as dependencies in the Makefile, and also for example in the generated Visual Studio project, if you generate one.
How to use those header files for several targets:
set(HEADER_FILES ${YOUR_DIRECTORY}/file1.h ${YOUR_DIRECTORY}/file2.h)
add_library(mylib l...
ERROR: Error 1005: Can't create table (errno: 121)
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I searched quickly for you, and it brought me here. I quote:
You will get this message if you're trying to add a constraint with a
name that's already used somewhere else
To check constraints use the following SQL query:
SELECT
constraint_n...
Match all elements having class name starting with a specific string [duplicate]
...te thing (probably because it looks so ugly.) What I -still- don't understand is this: According to the W3C page: w3schools.com/cssref/css_selectors.asp the syntax is: div[class*="test"] Yet, it -seems- to work like this, with no 'element' specified: [class*="test"] ...which I don't get...
When do we have to use copy constructors?
...st to be destroyed copy sharing the buffer will call delete[] successfully and the second will run into undefined behavior. You need deep copying copy constructor (and assignment operator as well).
Class::Class( const Class& another )
{
stored = new char[strlen(another.stored) + 1];
str...
Pythonic way of checking if a condition holds for any element of a list
I have a list in Python, and I want to check if any elements are negative. Specman has the has() method for lists which does:
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When do you use Git rebase instead of Git merge?
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Short Version
Merge takes all the changes in one branch and merges them into another branch in one commit.
Rebase says I want the point at which I branched to move to a new starting point
So when do you use either one?
Merge
Let's say you have created a branch for the purpose of...