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iphone Core Data Unresolved error while saving
...entity the error occurred on, the relationship/attribute that was missing, etc). The keys you use to inspect the userInfo dictionary can be found in the reference docs here.
This is the block of code I use to get reasonable output from the error returned during a save:
NSError* error;
if(...
Is there a `pointer-events:hoverOnly` or similar in CSS?
...styles to it's child, or using other css selectors like adjacent children, etc.
It depends on your case though.
On parent element hover. I did this:
.child {
pointer-events: none;
background-color: white;
}
.parent:hover > .child {
background-color: black;
}
...
Mapping a function on the values of a map in Clojure
...ure.walk/walk #(apply f %) identity m) )
Parellel versions – pmap-map, etc.
There are also parallel versions of these functions if you need them. They simply use pmap instead of map.
(defn pmap-map [f m]
(into (empty m) (pmap #(apply f %) m)) )
(defn pmap-map-keys [f m]
(pmap-map (fn [...
WebRTC vs Websockets: If WebRTC can do Video, Audio, and Data, why do I need Websockets? [closed]
...der and stuff, so it can be much faster is you don't mind some packet loss etc (i.e. having the latest data is more important than having all the data): stackoverflow.com/a/13051771/993683
– user993683
Apr 8 '17 at 8:49
...
What's the difference between KeyDown and KeyPress in .NET?
...s of keys that do result in calls to KeyPress:
A through Z, 0 through 9, etc.
Spacebar
Tab (KeyChar='\t', ASCII 9)
Enter (KeyChar='\r', ASCII 13)
Esc (KeyChar='\x1b', ASCII 27)
Backspace (KeyChar='\b', ASCII 8)
For the curious, KeyDown roughly correlates to WM_KEYDOWN, KeyPress to WM_CHAR, and K...
How do I get the coordinates of a mouse click on a canvas element?
...s a simplification of @Aldekein´s solution but without jQuery.
function getCursorPosition(canvas, event) {
const rect = canvas.getBoundingClientRect()
const x = event.clientX - rect.left
const y = event.clientY - rect.top
console.log("x: " + x + " y: " + y)
}
const canvas = docume...
C++ equivalent of StringBuffer/StringBuilder?
...it going to call operator+ on b and c, then operator+ on the result and d, etc.?
– Serge Rogatch
Jun 24 '15 at 16:43
9
...
How to save a PNG image server-side, from a base64 data string
...om the explode, depending on whether it's data:image/jpg or data:image/png etc.
– drew010
Feb 16 '17 at 16:17
i got th...
...t; - is for Page directives, registering assemblies, importing namespaces, etc.
<%= %> - is short-hand for Response.Write (discussed here)
<%# %> - is used for data binding expressions.
<%: %> - is short-hand for Response.Write(Server.HTMLEncode()) ASP.net 4.0+
<%#: %> - is u...
iPhone Safari Web App opens links in new window
... working for me on iOS 6.1 and with Bootstrap JS links (i.e dropdown menus etc)
$(document).ready(function(){
if (("standalone" in window.navigator) && window.navigator.standalone) {
// For iOS Apps
$('a').on('click', function(e){
e.preventDefault();
...