大约有 47,000 项符合查询结果（耗时：0.0551秒） [XML]
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
... most places where I add them. It's about consistency and legibility. You know, IMHO.
– nickf
Nov 7 '13 at 1:15
|
show 2 more comments
...
Nested attributes unpermitted parameters
...
Seems there is a change in handling of attribute protection and now you must whitelist params in the controller (instead of attr_accessible in the model) because the former optional gem strong_parameters became part of the Rails Core.
This should look something like this:
class PeopleCo...
How to use ng-repeat without an html element
...
Angular has caught up, this is the proper solution now.
– iwein
Jun 23 '14 at 22:51
add a comment
|
...
ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
...ill need to update the data in the child table (instead of deleting them).
Now, we can utilize Left Join to find all those rows in the child table, which does not have matching values in the parent table. Following query would be helpful to fetch those non-matching rows:
SELECT child_table.*
FROM c...
Why should eval be avoided in Bash, and what should I use instead?
...g.'
# Result in the same output (as long as $IFS has not been modified).
Now say we want to add an option to redirect output as an argument to println. We could, of course, just redirect the output of println on each call, but for the sake of example, we're not going to do that. We'll need to us...
Search and replace in Vim across all the project files
...looks like 's/pattern/replacement/' is the extension, I think I understand now.
– davekaro
Feb 23 '13 at 13:29
11
...
Create new user in MySQL and give it full access to one database
...de/site accessing MySQL on the same machine, hostname would be localhost.
Now, the break down.
GRANT - This is the command used to create users and grant rights to databases, tables, etc.
ALL PRIVILEGES - This tells it the user will have all standard privileges. This does not include the privileg...
are there dictionaries in javascript like python?
...l Map object (i.e. "There are no real associative arrays in Javascript" is now incorrect).
– robocat
Oct 4 '16 at 22:29
add a comment
|
...
How to use Active Support core extensions
... up loading a lot of unneeded stuff with a simple require 'activesupport'. Now we have to do things like
require 'active_support/core_ext/object/blank'
If you don't care about granularity, you can choose to load bigger chunks. If you want everything in one big gulp use...
For 1.9.2:
rvm 1.9.2
...
jQuery equivalent of JavaScript's addEventListener method
...
As of jQuery 1.7, .on() is now the preferred method of binding events, rather than .bind():
From http://api.jquery.com/bind/:
As of jQuery 1.7, the .on() method is the preferred method for
attaching event handlers to a document. For earlier vers...