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How do you delete all text above a certain line
How do you delete all text above a certain line. For deletion below a line I use "d shift g"
5 Answers
...
Redirecting to a certain route based on condition
...& user.isAdmin
}
})
})
3. Check auth on each route change.
// index.js
.run(function ($rootScope, $location) {
$rootScope.$on('$routeChangeStart', function (ev, next, curr) {
if (next.$$route) {
var user = $rootScope.user
var auth = next.$$route.auth
if (auth &a...
Why is debugging better in an IDE? [closed]
...hat an IDE debugger will give you over trace messages in code:
View the call stack at any point in time, giving you a context for your current stack frame.
Step into libraries that you are not able to re-compile for the purposes of adding traces (assuming you have access to the debug symbols)
Chan...
Is it feasible to do (serious) web development in Lisp? [closed]
...e almost any kind of application in almost any programming language, especially in such a powerful one as Lisp (be it Scheme or Common Lisp). But is it practical to use it for web development? If so, what should be a good starting point? Where can be found the proper resources (tools, libraries, doc...
Is there a library function for Root mean square error (RMSE) in python?
... above example. superscript 2 stands for numeric squared. di is the i'th index of d. pi is the i'th index of p.
The rmse done in small steps so it can be understood:
def rmse(predictions, targets):
differences = predictions - targets #the DIFFERENCEs.
differences...
IPN vs PDT in Paypal
...n't happen. The application I wrote handles the PDT and IPN almost identically (the backend part is the same) and that code acquires a per-web-user lock in the database, so that if the same user tries to submit the exact same payment multiple times it can only be processed once. Once processed the...
ng-repeat finish event
...nd it will act on each element, after it is created.
Then, there are the $index, $first, $middle and $last properties you can use to trigger events. So for this HTML:
<div ng-controller="Ctrl" my-main-directive>
<div ng-repeat="thing in things" my-repeat-directive>
thing {{thing}...
Reset identity seed after deleting records in SQL Server
... not use a table lock, the table (heap) will contain many empty pages. For indexes, the delete operation can leave empty pages behind, although these pages will be deallocated quickly by a background cleanup process.
If the table contains an identity column, the counter for that column is re...
Add timestamps to an existing table
...
Available transformations are
change_table :table do |t|
t.column
t.index
t.timestamps
t.change
t.change_default
t.rename
t.references
t.belongs_to
t.string
t.text
t.integer
t.float
t.decimal
t.datetime
t.timestamp
t.time
t.date
t.binary
t.boolean
t.remove
...
You can't specify target table for update in FROM clause
...e the query can be very slow; try to create temporary/second table with an index/primary key [see dev.mysql.com/doc/refman/5.1/en/create-table-select.html ]
– Alex
Feb 11 '13 at 9:25
...