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Waiting until two async blocks are executed before starting another block
...y Programming Guide
Your example could look something like this:
dispatch_group_t group = dispatch_group_create();
dispatch_group_async(group,dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^ {
// block1
NSLog(@"Block1");
[NSThread sleepForTimeInterval:5.0];
NSLog(@"Bl...
Entity Framework vs LINQ to SQL
...sn't Entity Framework use LINQ to SQL when, say, you're writing a dbSet<Orders>.Where()...ToList() ? I think it's misleading to have Entity Framework opposed from LINQ to SQL.
– Don Cheadle
Jun 7 '16 at 19:13
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What does iterator->second mean?
...lue" would have been more intuitive than "first" and "second", which imply ordering.
– ahoffer
Sep 5 '18 at 17:16
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Why does Java's hashCode() in String use 31 as a multiplier?
...cation to be key.hashCode() ^ value.hashCode() despite it is not even an unordered pair, as key and value have entirely different meaning. Yes, that implies that Map.of(42, 42).hashCode() or Map.of("foo", "foo", "bar", "bar").hashCode(), etc, are predictably zero. So don’t use maps as keys for oth...
How to make a Java class that implements one interface with two generic types?
...at expect these as parameters. I need one class the implement them both in order to share state.
Steve's idea was to use two inner classes, each implementing a different generic type.
This version adds getters for the objects that implement the Consumer interface, which can then be passed to oth...
Defining custom attrs
...mething and this is how you end up referring to it in code, e.g., R.attr.my_attribute. The format attribute can have different values depending on the 'type' of attribute you want.
reference - if it references another resource id (e.g, "@color/my_color", "@layout/my_layout")
color
boolean
dimensi...
How to include another XHTML in XHTML using JSF 2.0 Facelets?
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Using Font Awesome icon for bullet points, with a single list item element
...ttp://fortawesome.github.com/Font-Awesome/ ) icon as a bullet point for unordered lists in a CMS.
7 Answers
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How to resolve git stash conflict without commit?
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Suppose you have this scenario where you stash your changes in order to pull from origin. Possibly because your local changes are just debug: true in some settings file. Now you pull and someone has introduced a new setting there, creating a conflict.
git status says:
# On branch maste...
How do you write a migration to rename an ActiveRecord model and its table in Rails?
...ameOldTableToNewTable < ActiveRecord::Migration
def self.up
rename_table :old_table_name, :new_table_name
end
def self.down
rename_table :new_table_name, :old_table_name
end
end
I had to go and rename the model declaration file manually.
Edit:
In Rails 3.1 & 4, ActiveReco...