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Converting strings to floats in a DataFrame
How to covert a DataFrame column containing strings and NaN values to floats. And there is another column whose values are strings and floats; how to convert this entire column to floats.
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How to remove selected commit log entries from a Git repository while keeping their changes?
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@slhck: replay.web.archive.org/20090627051320/http://blog.madism.org/…
– Benjol
May 19 '11 at 9:58
3
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How to apply a style to an embedded SVG?
...rObjectElement.contentDocument;
var styleElement = svgDoc.createElementNS("http://www.w3.org/2000/svg", "style");
styleElement.textContent = "svg { fill: #fff }"; // add whatever you need here
svgDoc.getElementById("where-to-insert").appendChild(styleElement);
It's also possible to insert a <li...
Adding a guideline to the editor in Visual Studio
...all the following extensions rather than changing the registry yourself:
http://visualstudiogallery.msdn.microsoft.com/en-us/0fbf2878-e678-4577-9fdb-9030389b338c
http://visualstudiogallery.msdn.microsoft.com/en-us/7f2a6727-2993-4c1d-8f58-ae24df14ea91
These are also part of the Productivity Power...
Print All JVM Flags
...s you can skim over following extracts and find suitable option faster:
https://chriswhocodes.com/ (OracleJDK 6/7/8/9/10/11/12, OpenJDK 8/9/10/11, Graal CE/EE, OpenJ9, Zing)
http://jvm-options.tech.xebia.fr/
http://www.pingtimeout.fr/2012/05/jvm-options-complete-reference.html
http://stas-blog...
Performance difference for control structures 'for' and 'foreach' in C#
Which code snippet will give better performance? The below code segments were written in C#.
9 Answers
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Capturing touches on a subview outside the frame of its superview using hitTest:withEvent:
...s to its bounds, may be hidden, and more importantly : if the subviews are complex view hierarchies, the correct subview will be returned.
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
if (self.clipsToBounds) {
return nil;
}
if (self.hidden) {
return ...
What is the use of the %n format specifier in C?
What is the use of the %n format specifier in C? Could anyone explain with an example?
10 Answers
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ETag vs Header Expires
...he client request, the server can then determine whether to send the file (HTTP 200) or tell the client to just use their local copy (HTTP 304). An ETag is basically just a checksum for a file that semantically changes when the content of the file changes.
The Expires header is used by the client ...
Nodejs send file in response
...od on the Stream prototype called pipe; the code below reflects this.
var http = require('http'),
fileSystem = require('fs'),
path = require('path');
http.createServer(function(request, response) {
var filePath = path.join(__dirname, 'myfile.mp3');
var stat = fileSystem.statSync(fi...