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iPhone - Grand Central Dispatch main thread
...h_queue_t backgroundQueue = dispatch_queue_create("com.mycompany.myqueue", 0);
dispatch_async(backgroundQueue, ^{
int result = <some really long calculation that takes seconds to complete>;
dispatch_async(dispatch_get_main_queue(), ^{
[self updateMyUIWithResul...
Cannot change column used in a foreign key constraint
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edited Aug 9 '17 at 20:53
Jacob Bond
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answered Nov 28 '12 at 13...
What is the difference between tree depth and height?
...ges from the node to the tree's root node.A root node will have a depth of 0.
The height of a node is the number of edges on the longest path from the node to a leaf.A leaf node will have a height of 0.
Properties of a tree:
The height of a tree would be the height of its root node,or equivalent...
Hidden features of WPF and XAML?
...xtBlock>
<TextBlock.Text>
<MultiBinding StringFormat="{}{0}, {1}">
<Binding Path="LastName" />
<Binding Path="FirstName" />
</MultiBinding>
</TextBlock.Text>
</TextBlock>
...
Android: ScrollView force to bottom
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answered Jun 20 '10 at 18:41
CommonsWareCommonsWare
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Is it possible to hide extension resources in the Chrome web inspector network tab?
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answered Jan 30 '15 at 6:23
Mark BellMark Bell
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How to compare if two structs, slices or maps are equal?
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OneOfOneOneOfOne
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avoid page break inside row of table
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answered Aug 8 '12 at 23:00
Troy AlfordTroy Alford
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Convert a series of parent-child relationships into a hierarchical tree?
...ion printTree($tree) {
if(!is_null($tree) && count($tree) > 0) {
echo '<ul>';
foreach($tree as $node) {
echo '<li>'.$node['name'];
printTree($node['children']);
echo '</li>';
}
echo '</ul>';
...