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How to pop an alert message box using PHP?
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Create function for alert
<?php
alert("Hello World");
function alert($msg) {
echo "<script type='text/javascript'>alert('$msg');</script>";
}
?>
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How to list all the available keyspaces in Cassandra?
... had created one keyspace and few column families in my Cassandra DB but I forgot the name of my cluster.
15 Answers
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Unable to evaluate expression because the code is optimized or a native frame is on top of the call
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To work around this problem, use one of the following methods:
For Response.End, call the HttpContext.Current.ApplicationInstance.CompleteRequest()
method instead of Response.End to bypass the code execution to the
Application_EndRequest event.
For Response.Redirect, use an overloa...
finding and replacing elements in a list
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>>> a= [1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1]
>>> for n, i in enumerate(a):
... if i == 1:
... a[n] = 10
...
>>> a
[10, 2, 3, 4, 5, 10, 2, 3, 4, 5, 10]
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Execute raw SQL using Doctrine 2
...ace of this code above "$this->getEntityManager()", this way it worked for me straight away.
– webblover
Aug 22 '14 at 15:59
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“Find next” in Vim
To search forward in Vim for cake , I'd type /cake , but the cursor jumps to the first match when I press return. Is there a Vim command analogous to "find next"?
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CardView layout_width=“match_parent” does not match parent RecyclerView width
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The docs for inflate:
Inflate a new view hierarchy from the specified xml resource. Throws
InflateException if there is an error.
Parameters
resource ID for an XML layout resource to load (e.g.,
R.layout.main_page) roo...
How do I check if a file exists in Java?
... There are some cases where exists() will return an incorrect result. For example, when using an NFS file system there is an issue with stale file handles: bugs.java.com/bugdatabase/view_bug.do?bug_id=5003595 It's kind of obscure, but has been the cause of some frustrating bugs in production c...
Coarse-grained vs fine-grained
... observation. It is the
extent to which a larger entity is
subdivided. For example, a yard broken
into inches has finer granularity than
a yard broken into feet.
Coarse-grained systems consist of
fewer, larger components than
fine-grained systems; a coarse-grained
description of a...
TypeError: ObjectId('') is not JSON serializable
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Perfect! It worked for me. I already have a Json encoder class, How can i merge that with yours class?My already Json encode class is: 'class MyJsonEncoder(json.JSONEncoder): def default(self, obj): if isinstance(obj, datetime): ...