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Rails: How does the respond_to block work?
...nd_to executes your block, passing a Responder into the format argument.
http://api.rubyonrails.org/v4.1/classes/ActionController/Responder.html
The Responder does NOT contain a method for .html or .json, but we call these methods anyways! This part threw me for a loop.
Ruby has a feature called...
MYSQL OR vs IN performance
... figure out the answer for my given question.
This might be of some help: http://forge.mysql.com/wiki/Top10SQLPerformanceTips
Regards,
Frank
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JS - get image width and height from the base64 code
....naturalHeight had the best results.
const img = new Image();
img.src = 'https://via.placeholder.com/350x150';
img.onload = function() {
const imgWidth = img.naturalWidth;
const imgHeight = img.naturalHeight;
console.log('imgWidth: ', imgWidth);
console.log('imgHeight: ', imgHeight);
};
...
How to take screenshot of a div with JavaScript?
...creenshot. The only thing you need in addition is the html2canvas library (https://html2canvas.hertzen.com/).
Example:
getScreenshotOfElement($("div#toBeCaptured").get(0), 0, 0, 100, 100, function(data) {
// in the data variable there is the base64 image
// exmaple for displaying the image...
C# constructor execution order
... for those who learn by example this fiddle illustrates the order as well: https://dotnetfiddle.net/kETPKP
using System;
// order is approximately
/*
1) most derived initializers first.
2) most base constructors first (or top-level in constructor-stack first.)
*/
public class Program
{
p...
How can I wrap text to some length in Vim?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
tag vs tag
...ipt language="JavaScript">; the language attribute is deprecated
Ref :
http://social.msdn.microsoft.com/Forums/vstudio/en-US/65aaf5f3-09db-4f7e-a32d-d53e9720ad4c/script-languagejavascript-or-script-typetextjavascript-?forum=netfxjscript
and
Difference between <script> tag with type and <...
sed fails with “unknown option to `s'” error [closed]
...
The problem is with slashes: your variable contains them and the final command will be something like sed "s/string/path/to/something/g", containing way too many slashes.
Since sed can take any char as delimiter (without having to declare the new delimiter), you can try using another one that d...
How can I show the name of branches in `git log`?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Run single test from a JUnit class using command-line
...d "testMethod" within Class "GreatTestClass".
For more details, check out http://maven.apache.org/surefire/maven-surefire-plugin/examples/single-test.html
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