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Replace a newline in TSQL
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@Slint Yes, good point. Practically speaking, to use this from client code you should add a column name. Though it is true that a lot of times you can get away with using .columns[0] instead.
– RBarryYoung
May 27 '1...
Rails migrations: self.up and self.down versus change
.... For example, in your case what is the reverse operation of add_column to call when you rollback? Of course it's remove_column. What is the inverse of create_table? It's drop_table. So in these cases rails know how to rollback and define a down method is superfluous (you can see in the documentatio...
Is it possible for intellij to organize imports the same way as in Eclipse?
...k,
com.*,
blank,
all other imports
FWIW, there is an Intellij plugin called "eclipse code formatter" that I evaluated for this purpose and ended up discarding, because it set up a separate shortcut (in OSX) that was already in use by core IDE functionality.
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Why declare a struct that only contains an array in C?
...'t inline: it's more efficient to pass them by const-reference, unless the callee already needs a tmp copy it can destroy. If the call / return don't optimize away, a medium to large array (thousands of bytes) is a terrible thing to pass by value.
– Peter Cordes
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Getting the parent div of element
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This might help you.
ParentID = pDoc.offsetParent;
alert(ParentID.id);
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Join strings with a delimiter only if strings are not null or empty
...ings */) {
// Do not use:
// var args = Array.prototype.slice.call(arguments, 1);
// since it prevents optimizations in JavaScript engines (V8 for example).
// (See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/arguments)
// So we construct a ne...
Detect 7 inch and 10 inch tablet programmatically
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From this, we can get the information required to size the display:
int widthPixels = metrics.widthPixels;
int heightPixels = metrics.heightPixels;
This will return the absolute value of the width and the height in pixels, so 1280x720 for the Galaxy SIII, the Galaxy Nexus etc.
This isn't usual...
How to restart a rails server on Heroku?
Locally I just interrupt (ctrl-c) and then start it again.
5 Answers
5
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What's the difference between tag and release?
... It might also worthwhile to know that there's now a command-line tool called hub that supercharges the capabilities of git. Among these superpowers, there's the ability to push release in the terminal.
– Paul Razvan Berg
Jan 30 '19 at 14:21
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How to find out what group a given user has?
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This one shows the user's uid as well as all the groups (with their gids) they belong to
id userid
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