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Secret copy to clipboard JavaScript function in Chrome and Firefox?
...irebug console functions - at least that seems to be the case for Firebug. If you try calling window.copy for instance, you'll get a warning about function not defined, so it's definitely not a browser function, and cannot be used in normal JavaScript files. The following functions also seems to wor...
validation custom message for rails 3
...
Actually, I did this in a better way. If you want to remove the field title from the message you should use this on your _form.htmk.erb view:
As you can see inside this view:
<ul>
<% @article.errors.full_messages.each do |msg| %>
<li><%...
为AppInventor2开发拓展(Extension) · App Inventor 2 中文网
...属性→高级系统设置→高级→环境变量
新建JAVA_HOME:如果是默认安装路径那么就在这个路径下：C:\Program Files\Java\jdk1.8.0_171
新建Classpath： .;%JAVA_HOME%\lib;%JAVA_HOME%\lib\tools.jar
在Path后面新增：%JAVA_HOME%\bin;%JAVA_HOME%\...
How can I make setInterval also work when a tab is inactive in Chrome?
...ar range = domain[1] - domain[0]
function start() {
startedAt = Date.now()
updateTarget(0)
requestAnimationFrame(update)
}
function update() {
let elapsedTime = Date.now() - startedAt
// playback is a value between 0 and 1
// being 0 the start of the animation and 1 its en...
How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?
...
Test it for distinct, if two equal max datetime be in the same home (with different players)
– Maksym Gontar
Mar 4 '09 at 21:04
...
What's the correct way to sort Python `import x` and `from x import y` statements?
...chable. After all python is all about readability.
Also It is easier to verify that something is imported, and avoids duplicated imports
There is nothing available in PEP 8 regarding sorting.So its all about choice what you use.
According to few references from reputable sites and repositories als...
How to create directories recursively in ruby?
I want to store a file as /a/b/c/d.txt, but I do not know if any of these directories exist and need to recursively create them if necessary.
How can one do this in ruby?
...
date format yyyy-MM-ddTHH:mm:ssZ
...Using UTC
ISO 8601 (MSDN datetime formats)
Console.WriteLine(DateTime.UtcNow.ToString("s") + "Z");
2009-11-13T10:39:35Z
The Z is there because
If the time is in UTC, add a 'Z'
directly after the time without a
space. 'Z' is the zone designator for
the zero UTC offset. "09:30 UTC" ...
Groovy / grails how to determine a data type?
...ss()
You can abbreviate this to someObject.class in most cases. However, if you use this on a Map it will try to retrieve the value with key 'class'. Because of this, I always use getClass() even though it's a little longer.
If you want to check if an object implements a particular interface or e...
Automatic creation date for Django model form objects?
...
You can use the auto_now and auto_now_add options for updated_at and created_at respectively.
class MyModel(models.Model):
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
...