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jQuery counting elements by class - what is the best way to implement this?
...do is to count all of the elements in the current page with the same class and then I'm going to use it to be added onto a name for an input form. Basically I'm allowing users to click on a <span> and then by doing so add another one for more of the same type of items. But I can't think of a...
what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?
...ly.
This is important in case you have a nested hash with a mix of string and symbol keys and you want to preserve that mix upon decode (for instance, this could happen if your hash contains your own custom objects in addition to highly complex/nested third-party objects whose keys you cannot manip...
CSS endless rotation animation
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@-webkit-keyframes rotating /* Safari and Chrome */ {
from {
-webkit-transform: rotate(0deg);
-o-transform: rotate(0deg);
transform: rotate(0deg);
}
to {
-webkit-transform: rotate(360deg);
-o-transform: rotate(360deg);
trans...
JUnit Testing Exceptions [duplicate]
... it's an unchecked exception. If the exception is checked it won't compile and you will need to use other methods.
This link might help.
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How to view or edit localStorage
I created a Chrome extension and am using localStorage for storing data.
5 Answers
5
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How can I format a nullable DateTime with ToString()?
... format)
=> dt == null ? "n/a" : ((DateTime)dt).ToString(format);
And starting in C# 6, you can use the null-conditional operator to simplify the code even more. The expression below will return null if the DateTime? is null.
dt2?.ToString("yyyy-MM-dd hh:mm:ss")
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How can I count the number of children?
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What if, its not known that the child is "li", and could be anything?
– Starx
Sep 24 '12 at 10:41
8
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How to switch databases in psql?
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In PostgreSQL, you can use the \connect meta-command of the client tool psql:
\connect DBNAME
or in short:
\c DBNAME
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How can I change the image of an ImageView? [duplicate]
I have just started learning android. And i don't know How can I change the image of an ImageView ? ie it has some Image which was set in the layout but i want to change that image through coding how should i do it ?
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how to make a jquery “$.post” request synchronous [duplicate]
I’ve been googling this and avoiding this error in my bug fix list for a long time now, but I’ve finally reached the end of the list, the last of which I have to make a function return true/false to state whether the validation has succeeded or not.
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