if ( $(‘#myfav’).children().length > 0 ) { // do something } This should work. The children() function returns a JQuery object that contains the children. So you just need to check the size and see if it has at least one child.
I needed to have toddler lock in a new app, and did not want to use a launcher. Here is what I did, you can see the app at https://play.google.com/store/apps/details?id=com.justforkids.animalsounds When lock is activated, start a service, and stop it when lock is deactivated The service checks the top running app, and if it is … Read more
In plain JavaScript you would use something like: // Single document.querySelector(“.onediv”).classList.add(“red”); // Multiple (deeply nested) document.querySelectorAll(“.onediv:first-child”).forEach(EL => EL.classList.add(“red”)); Or by Parent Element using Element.firstElementChild: // Single Parent document.querySelector(“.alldivs”).firstElementChild.classList.add(“red”); // Multiple parents document.querySelector(“.alldivs”).forEach(EL => EL.firstElementChild.classList.add(“red”)); jQuery get first child Use: $(“.onediv”).eq(0) Other examples of selectors and methods targeting the first LI inside an UL: Syntax Type … Read more
Here you have a working solution: public class WindowHandleInfo { private delegate bool EnumWindowProc(IntPtr hwnd, IntPtr lParam); [DllImport(“user32”)] [return: MarshalAs(UnmanagedType.Bool)] private static extern bool EnumChildWindows(IntPtr window, EnumWindowProc callback, IntPtr lParam); private IntPtr _MainHandle; public WindowHandleInfo(IntPtr handle) { this._MainHandle = handle; } public List<IntPtr> GetAllChildHandles() { List<IntPtr> childHandles = new List<IntPtr>(); GCHandle gcChildhandlesList = GCHandle.Alloc(childHandles); IntPtr … Read more
You could consider using CSS clip: rect(top, right, bottom, left); to clip a fixed positioned element to a parent. See demo at http://jsfiddle.net/lmeurs/jf3t0fmf/. Beware, use with care! Though the clip style is widely supported, main disadvantages are that: The parent’s position cannot be static or relative (one can use an absolutely positioned parent inside a … Read more
Sounds like you’re overthinking it. You’ve observed the difference between childNodes and children, which is that childNodes contains all nodes, including text nodes consisting entirely of whitespace, while children is a collection of just the child nodes that are elements. That’s really all there is to it. There is nothing unpredictable about either collection, although … Read more