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How to add a button to UINavigationBar?

...= CGRectMake(0, 0, 32, 32); [button setImage:[UIImage imageNamed:@"settings_b.png"] forState:UIControlStateNormal]; [button addTarget:self action:@selector(openView) forControlEvents:UIControlEventTouchUpInside]; UIBarButtonItem *barButton=[[UIBarButtonItem alloc] init]; [barButton setCustomView:bu...
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In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?

... A friend of mine made f.cl.ly/items/3b0q1n0o1m142P1P340P/javascript_equality.html - the same graphs as above, but a bit easier to read. – Lucy Bain Dec 17 '14 at 22:50 ...
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Primary key or Unique index?

.... Example: CREATE TABLE table1 (foo int, bar int); CREATE UNIQUE INDEX ux_table1_foo ON table1(foo); -- Create unique index on foo. INSERT INTO table1 (foo, bar) VALUES (1, 2); -- OK INSERT INTO table1 (foo, bar) VALUES (2, 2); -- OK INSERT INTO table1 (foo, bar) VALUES (3, 1); -- OK INSERT INTO...
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PHP function to get the subdomain of a URL

... Here's a one line solution: array_shift((explode('.', $_SERVER['HTTP_HOST']))); Or using your example: array_shift((explode('.', 'en.example.com'))); EDIT: Fixed "only variables should be passed by reference" by adding double parenthesis. EDIT 2: Star...
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Can you control how an SVG's stroke-width is drawn?

Currently building a browser-based SVG application. Within this app, various shapes can be styled and positioned by the user, including rectangles. ...
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Why is 1/1/1970 the “epoch time”?

...clock on the hardware of the early Unix systems. The value 60 Hz still appears in some software interfaces as a result. The epoch also differed from the current value. The first edition Unix Programmer's Manual dated November 3, 1971 defines the Unix time as "the time since 00:00:00, ...
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What do “branch”, “tag” and “trunk” mean in Subversion repositories?

...a development effort. It should never be named after a resource (like 'vonc_branch') but after: a purpose 'myProject_dev' or 'myProject_Merge' a release perimeter 'myProjetc1.0_dev'or myProject2.3_Merge' or 'myProject6..2_Patch1'... Tag is a snapshot of files in order to easily get back to that s...
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Error 1022 - Can't write; duplicate key in table

...raints are currently in use you can use the following query: SELECT `TABLE_SCHEMA`, `TABLE_NAME` FROM `information_schema`.`KEY_COLUMN_USAGE` WHERE `CONSTRAINT_NAME` IN ('iduser', 'idcategory'); share | ...
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What is “function*” in JavaScript?

...ion about generators I've come across so far. I could see using this in an app, vs previously just understanding it theoretically. – wes Aug 6 '15 at 16:17 add a comment ...
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How can I “disable” zoom on a mobile web page?

... Still not working on Safari/iOS 11 due to the SFB issue at Apple. – 15ee8f99-57ff-4f92-890c-b56153 Mar 21 '18 at 15:27 ...