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Breakpoints are crossed out, how can I make them valid?
...all breakpoints. There is also an icon for this in the "Breakpoints" View, and there may be a hot-key defined as well, all of which you may have triggered by accident.
Take a look at the Run -> Skip All Breakpoints.
shar...
Is there a way to iterate over a dictionary?
...d a key in order to get a value . But how can I iterate over all keys and values in a NSDictionary , so that I know what keys there are, and what values there are? I know there is something called a for-in-loop in JavaScript . Is there something similar in Objective-C ?
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Is there an XSLT name-of element?
...y did point the subtle difference in the semantics of the functions name() and local-name().
name(someNode) returns the full
name of the node, and that includes
the prefix and colon in case the node
is an element or an attribute.
local-name(someNode) returns only
the local name of the node, and th...
In which case do you use the JPA @JoinTable annotation?
...ble or @JoinColumn
Let's pretend that you have an entity named Project and another entity named Task and each project can have many tasks.
You can design the database schema for this scenario in two ways.
The first solution is to create a table named Project and another table named Task and ad...
RootViewController Switch Transition Animation
...his approach, it worked partially, the thing is my app shall only stay in landscape mode, but by doing rootviewcontroller transition, the newly-presented view controller is loaded in portrait at the beginning, and quickly rotate to landscape mode, how to solve that?
– Chris Che...
How can I suppress column header output for a single SQL statement?
I'm executing some SQL statements in batch (using the mysql command-line binary). I want one of my several SELECT statements to not print the column headers, just the selected records. Is this possible?
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Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
I have installed MySQL server and trying to connect to it, but getting the error:
18 Answers
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How to create a zip file in Java
...cording to the user's query. I have to write this content into a text file and zip it in a folder in a servlet. How should I do this?
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How do you use window.postMessage across domains?
... },
false);
</script>
</body>
</html>
A and B must be something like http://domain.com
EDIT:
From another question, it looks the domains(A and B here) must have a / for the postMessage to work properly.
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python numpy machine epsilon
I am trying to understand what is machine epsilon. According to the Wikipedia, it can be calculated as follows:
3 Answers
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