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Getting activity from context in android
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This is something that I have used successfully to convert Context to Activity when operating within the UI in fragments or custom views. It will unpack ContextWrapper recursively or return null if it fails.
public Activity getActivity(Context context)
{
if (context == n...
How do you echo a 4-digit Unicode character in Bash?
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Quick one-liner to convert UTF-8 characters into their 3-byte format:
var="$(echo -n '☠' | od -An -tx1)"; printf '\\x%s' ${var^^}; echo
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How can I use map and receive an index as well in Scala?
..., "little", "lamb")
scala> ls.zipWithIndex.foreach{ case (e, i) => println(i+" "+e) }
0 Mary
1 had
2 a
3 little
4 lamb
From: http://www.artima.com/forums/flat.jsp?forum=283&thread=243570
You also have variations like:
for((e,i) <- List("Mary", "had", "a", "little", "lamb").zipWithI...
How can I determine what font a browser is actually using to render some text?
...n pasting from Firefox (where for "웃" Firefox's "Apple SD Gothic Neo" is converted into "AppleMyungjo" on pasting), but works well for Safari and Chrome:
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Best way to initialize (empty) array in PHP
...ul if you wanna create your array in an object with properties pattern and convert it to array in the end.
– Jomar Sevillejo
Dec 8 '15 at 8:30
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Is “ ” a replacement of “ ”?
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Is there any change to convert these numeric entity referenece into the character enitiy reference?
– user2140111
Sep 4 '15 at 10:41
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PHP Pass by reference in foreach [duplicate]
...ill become a normal variable (Since no one else is pointing to $a[0] it is converted to a normal variable. PHP is smart enough to make it a normal variable when no one else is pointing towards it)
This is what happens in the first loop
foreach ($a as &$v) {
}
After the last iteration $a[3...
Create PostgreSQL ROLE (user) if it doesn't exist
...catch only this one error. As other answers mentioned it is a good idea to convert fatal error to simple notice. Other PostgreSQL IF NOT EXISTS commands adds , skipping into their message, so for consistency I'm adding it here too.
Here is full SQL code for simulation of CREATE ROLE IF NOT EXISTS w...
How to reset a form using jQuery with .reset() method
...s post here, jQuery has no reset() method; but native JavaScript does. So, convert the jQuery element to a JavaScript object by either using :
$("#formId")[0].reset()
// or
$("#formId").get(0).reset()
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MySQL Insert Where query
...f you're trying to insert a new row with ID 1 you should be using:
INSERT INTO Users(id, weight, desiredWeight) VALUES(1, 160, 145);
If you're trying to change the weight/desiredWeight values for an existing row with ID 1 you should be using:
UPDATE Users SET weight = 160, desiredWeight = 145 WH...