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How to check null objects in jQuery
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what do you think about var _myDiv = $('#myDiv'); ... .... if(_myDiv.lenght) {...} produce exception.
– Nuri YILMAZ
Mar 8 '11 at 19:15
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Saving enum from select in Rails 4.1
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If you need to handle the i18n based on the enum keys you can use:
<%= f.select :color, Wine.colors.keys.map {|key| [t("wine.#{key}"), key]} %>
and in the tranlations you can set the colors:
wine:
red: Red
white: White
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The character encoding of the HTML document was not declared
... edited Sep 27 '15 at 8:04
joe_young
3,79022 gold badges2020 silver badges3434 bronze badges
answered Sep 27 '15 at 7:08
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Get underlined text with Markdown
... answered Jun 9 '10 at 6:24
zed_0xffzed_0xff
28.2k77 gold badges4747 silver badges7070 bronze badges
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Illegal pattern character 'T' when parsing a date string to java.util.Date
...Zone UTC;
/**
* @see <a href="http://en.wikipedia.org/wiki/ISO_8601#Combined_date_and_time_representations">Combined Date and Time Representations</a>
*/
public static final String ISO_8601_24H_FULL_FORMAT = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX";
/**
* 0001-01-01T00...
Rails DB Migration - How To Drop a Table?
...iew here on whether it's better to drop tables or revert to a previous database schema?
– william tell
May 11 '12 at 16:23
4
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unix - head AND tail of file
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Based on J.F. Sebastian's comment:
cat file | { tee >(head >&3; cat >/dev/null) | tail; } 3>&1
This way you can process first line and the rest differently in one pipe, which is useful for working with ...
What is a NullPointerException, and how do I fix it?
... doSomething() could be written as:
/**
* @param obj An optional foo for ____. May be null, in which case
* the result will be ____.
*/
public void doSomething(SomeObject obj) {
if(obj == null) {
//do something
} else {
//do something else
}
}
Finally, How to pinpo...
In Java, is there a way to write a string literal without having to escape quotes?
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Could you please add an example possibly based on the question illustrating how to it for this problem?
– Bengt
Jun 14 '13 at 17:13
4
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What are valid values for the id attribute in HTML?
...wed by any number of letters, digits ([0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (".").
HTML 5 is even more permissive, saying only that an id must contain at least one character and may not contain any space characters.
The id attribute is case sensitive in XHTML.
As a ...