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Bootstrap: align input with button
... aligned using the input-group-prepend and input-group-append classes (see https://getbootstrap.com/docs/4.0/components/input-group/#button-addons)
Group button on the left side (prepend)
<div class="input-group mb-3">
<div class="input-group-prepend">
<button class="btn btn-o...
Check a collection size with JSTL
... top of JSP page to allow the fn namespace:
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
Or if you're using JSPX or Facelets:
<... xmlns:fn="http://java.sun.com/jsp/jstl/functions">
And use like this in your page:
<p>The length of the companies collectio...
Reset keys of array elements in php?
...set keys
foreach($input as &$val) {
$val = array_values($val);
}
http://php.net/array_values
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How to get a substring of text?
...
Since you tagged it Rails, you can use truncate:
http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#method-i-truncate
Example:
truncate(@text, :length => 17)
Excerpt is nice to know too, it lets you display an excerpt of a text Like so:
excerpt(...
Format number to 2 decimal places
...
You want to use the TRUNCATE command.
https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_truncate
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if a ngSrc path resolves to a 404, is there a way to fallback to a default?
...o replace the src. (Plunker)
Html:
<img ng-src="smiley.png" err-src="http://google.com/favicon.ico" />
Javascript:
var app = angular.module("MyApp", []);
app.directive('errSrc', function() {
return {
link: function(scope, element, attrs) {
element.bind('error', function() {
...
Get and set position with jQuery .offset()
... elements relative to each other. For complete documentation and demo see: http://jqueryui.com/demos/position/#option-offset.
Here's one way to position your elements using the position feature:
var options = {
"my": "top left",
"at": "top left",
"of": ".layer1"
};
$(".layer2").positio...
Equation (expression) parser with precedence?
... get your desired C code that demonstrates this four function calculator:
http://www.gnu.org/software/bison/manual/html_node/Infix-Calc.html
Look at the generated code, and see that this is not as easy as it sounds. Also, the advantages of using a tool like Bison are 1) you learn something (especi...
erb, haml or slim: which one do you suggest? And why? [closed]
...aml:
Slim is currently about eight times faster than haml.
Slim supports HTTP streaming, while HAML doesn't.
Slim has a more natural syntax: a href="foo.html"
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What is a .h.gch file?
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Its a GCC precompiled header.
Wikipedia has a half decent explanation, http://en.wikipedia.org/wiki/Precompiled_header
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