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Ruby Metaprogramming: dynamic instance variable names
...:instance_variable_set), the method instance_variable_set receives the two parameters that it needs?
– Arnold Roa
Dec 2 '16 at 18:15
...
Check if a string is html or not
...ate:
Complete validation with:
/<(br|basefont|hr|input|source|frame|param|area|meta|!--|col|link|option|base|img|wbr|!DOCTYPE).*?>|<(a|abbr|acronym|address|applet|article|aside|audio|b|bdi|bdo|big|blockquote|body|button|canvas|caption|center|cite|code|colgroup|command|datalist|dd|del|de...
Why use String.Format? [duplicate]
...know what goes where, I have to go back and forth between the text and the params, and that's not even counting the possibility of miscounting and getting it wrong (that may not be an issue with fewer parameters, but go over 10 and it stops being fun). As Ashley pointed out, the second point is null...
How to get image height and width using java?
... provides an early exit:
/**
* Gets image dimensions for given file
* @param imgFile image file
* @return dimensions of image
* @throws IOException if the file is not a known image
*/
public static Dimension getImageDimension(File imgFile) throws IOException {
int pos = imgFile.getName().la...
setTimeout / clearTimeout problems
... if(clearfunc) {
clearfunc();
}
}
}
The element parameter is the one which you hold. The func parameter fires when it holds for a number of milliseconds specified by the parameter hold. The clearfunc param is optional and if it is given, it will get fired if the user lets ...
offsetting an html anchor to adjust for fixed header [duplicate]
...hor which resolves to an element on the
* page, scroll to it.
* @param {String} href
* @return {Boolean} - Was the href an anchor.
*/
scrollIfAnchor: function(href, pushToHistory) {
var match, rect, anchorOffset;
if(!this.ANCHOR_REGEX.test(href)) {
retur...
Android Layout with ListView and Buttons
....ABOVE) on a RelativeLayout, either. You call it on a RelativeLayout.LayoutParams. You then add the ListView to the RelativeLayout, supplying that RelativeLayout.LayoutParams. Please consider switching to XML and inflating it, for long-term maintainability.
– CommonsWare
...
Use of Initializers vs Constructors in Java
....
Constructors are not inherited, though. (They only call super() [i.e. no parameters] implicitly or you have to make a specific super(...) call manually.)
This means it is possible that a implicit or exclicit super(...) call might not initialize the subclass as intended by the parent class.
Consi...
Changing three.js background to transparent or other color
...ue } ); // init like this
renderer.setClearColor( 0xffffff, 0 ); // second param is opacity, 0 => transparent
View the docs for more info.
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How to validate an email address in PHP
...It can return a true or false when supplied with the FILTER_VALIDATE_EMAIL param.
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