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Getting value of select (dropdown) before change
... previous = this.value;
});
})();
Working example: http://jsfiddle.net/x5PKf/766
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Update statement with inner join on Oracle
...t
set t.bonus = 0;
See this link for more details.
http://geekswithblogs.net/WillSmith/archive/2008/06/18/oracle-update-with-join-again.aspx.
Also, ensure that there are primary keys on all the tables you are joining.
sha...
How can I make an entire HTML form “readonly”?
...; and give it the disabled="disabled" attribute.
Example (http://jsfiddle.net/7qGHN/):
<form>
<fieldset disabled="disabled">
<input type="text" name="something" placeholder="enter some text" />
<select>
<option value="0" disabled="...
What is the difference between sigaction and signal?
...voided when possible. sigaction is the preferred method.
Source: https://www.gnu.org/software/libc/manual/html_node/Basic-Signal-Handling.html#Basic-Signal-Handling
So, if both Linux and GCC say not to use signal(), but to use sigaction() instead, that begs the question: how the heck do we use th...
Checkboxes in web pages – how to make them bigger?
...a very blurry appearance. It scales well in Chrome, though. Demo: jsfiddle.net/tzp858j3
– Kat
Dec 31 '14 at 23:46
is t...
delete a.x vs a.x = undefined
...d will not look for the property in the chained prototypes http://jsfiddle.net/NEEw4/1/
var obj = {x: "fromPrototype"};
var extended = Object.create(obj);
extended.x = "overriding";
console.log(extended.x); // overriding
extended.x = undefined;
console.log(extended.x); // undefined
delete extended...
Using tags to turn off caching in all browsers? [duplicate]
...ntrol:no-cache? More explanation would be nice.
– Bennett McElwee
Sep 10 '12 at 23:36
17
Not 100%...
How to rollback a specific migration?
... migrations, that explains how and when to use these commands: railsguides.net/polish-rails-migrations
– ka8725
Apr 14 '18 at 1:22
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CSS to stop text wrapping under image
... }
p {
overflow: hidden;
}
See example: http://jsfiddle.net/vandigroup/upKGe/132/
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Is there a way to check if int is legal enum in C#?
...ng() ==> "20"
With these two rules in mind we can assume that if the .NET Framework does its job correctly that any calls to a valid enum's ToString() method will result in something that has an alphabetic character as its first character:
public static bool IsValid<TEnum>(this TEnum enu...