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Margin-Top push outer div down
... top margin is effectively applied to the parent container itself. You can test this on your own by doing the following:
<div>
<h1>Test</h1>
</div>
In a debugger, open this up and hover the div. You'll notice that the div itself actually is placed where the top-margin ...
Why is null an object and what's the difference between null and undefined?
...undefined, null
Booleans: false
Numbers: +0, -0, NaN
Strings: ""
You can test the conversion to boolean by using Boolean as a function (normally it is a constructor, to be used with new):
> Boolean(null)
false
> Boolean("")
false
> Boolean(3-3)
false
> Boolean({})
true
> Boolean([]...
Counting the number of True Booleans in a Python List
...
Yes, for the top part. As I indicated, the Python test for a "true " (as in an if statement) is more complicated than just testing for True. See docs.python.org/py3k/library/stdtypes.html#truth. The True = 2 was just to reinforce that the concept of "true" is more complex;...
Vertically centering a div inside another div [duplicate]
...gest that you use one of the more modern solutions.
Here is an example
Tested in:
FF3.5+
FF4+
Safari 5+
Chrome 11+
IE9+
HTML
<div class="cn"><div class="inner">your content</div></div>
CSS
.cn {
display: table-cell;
width: 500px;
height: 500px;
vertical...
Using Git, how could I search for a string across all branches?
... the accepted answer. Grepping a string across all branches but for the latest content only is a very common use case.
– dr_
Jul 11 '19 at 11:48
add a comment
...
How to create PDFs in an Android app? [closed]
...vertion of an arbitrary HTML to PDF with non-english letters in Android. I test it for russian unicode letters.
We use three libraries:
(1) Jsoup (jsoup-1.7.3.jar) for a convertion from HTML to XHTML,
(2) iTextPDF (itextpdf-5.5.0.jar),
(3) XMLWorker (xmlworker-5.5.1.jar).
public boolean crea...
Is there a HTML opposite to ?
...tc. tags) then use jQuery's ajax functions to load it into the full page.
test.html
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript" charset="utf-8">
$(document).ready(fun...
Making a mocked method return an argument that was passed to it
...face Application {
public String myFunction(String abc);
}
Here is the test method with a Mockito answer:
public void testMyFunction() throws Exception {
Application mock = mock(Application.class);
when(mock.myFunction(anyString())).thenAnswer(new Answer<String>() {
@Override
...
How to check if there exists a process with a given pid in Python?
...
haridsv suggests the test should be e.errno != 3; perhaps e.errno != errno.ESRCH
– Jason R. Coombs
Feb 22 '12 at 12:12
...
In javascript, is an empty string always false as a boolean?
...
@Bruno, You can perform the same test with NaN and undefined. They are not false but they are falsy. Which is what was asked.
– Joseph
Feb 25 '16 at 23:52
...