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How to check if element is visible after scrolling?
...nobserve(entry.target)
span{ position:fixed; top:0; left:0; }
.box{ width:100px; height:100px; background:red; margin:1000px; transition:.5s; }
.box.visible{ background:green; }
<span>Scroll both Vertically &amp; Horizontally...</span>
<div class='box'></div>
Vie...
How to convert a Base64 string into a Bitmap image to show it in a ImageView?
...s(), R.drawable.logo);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
byte[] imageBytes = baos.toByteArray();
String imageString = Base64.encodeToString(imageBytes, Base64.DEFAULT);
//decode base64 string to image
imageBytes = Base64.decode(imageStri...
input type=file show only button
... background-color: #DDF;
}
.fileInput {
cursor: pointer;
height: 100%;
position:absolute;
top: 0;
right: 0;
z-index: 99;
/*This makes the button huge. If you want a bigger button, increase the font size*/
font-size:50px;
/*Opacity settings for all browsers*/
...
How to print time in format: 2009‐08‐10 18:17:54.811
..."struct timeval" used by gettimeofday() has microseconds which, divided by 1000 will yield the milliseconds. All those upvotes are really wrong and misleading! Unless someone reports under which architecture you get time details below the second with "struct tm".
– EnzoR
...
Purpose of Activator.CreateInstance with example?
...eInstance("MyAssembly", ClassName))
and can then do stuff like:
obj.A = 100;
That's its purpose. It also has many other overloads such as providing a Type instead of the class name in a string. Why you would have a problem like that is a different story. Here's some people who needed it:
Crea...
Is it a bad practice to use negative margins in Android?
...
@100kg: Sorry, but that is not supported.
– CommonsWare
Apr 8 '13 at 14:48
21
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How do you do natural logs (e.g. “ln()”) with numpy in Python?
... and log-k is the log in base k, e.g.
here k = e
l = np.log(x) / np.log(100)
and l is the log-base-100 of x
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pull out p-values and r-squared from a linear regression
... solution utilising the broom package.
Sample code
x = cumsum(c(0, runif(100, -1, +1)))
y = cumsum(c(0, runif(100, -1, +1)))
fit = lm(y ~ x)
require(broom)
glance(fit)
Results
>> glance(fit)
r.squared adj.r.squared sigma statistic p.value df logLik AIC BIC deviance df...
changing source on html5 video tag
...').innerHTML = '<video autoplay controls id="video_ctrl" style="height: 100px; width: 100px;"><source src="'+src+'" type="video/mp4"></video>';
document.getElementById('video_ctrl').play();
}
</script>
<button onClick="setvideo('video1.mp4');">Video1</button>
...
Rebasing remote branches in Git
...ople will get problems and have to rebase their code. Now imagine you have 1000 developers :) It just causes a lot of unnecessary rework.
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