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Using the HTML5 “required” attribute for a group of checkboxes?
... @Clijsters the question is about a HTML5 way to do it - not with Javascript (of course, various solutions are possible in Javascript)
– Zabba
Apr 10 '18 at 0:18
7
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How many levels of pointers can we have?
... I couldn't get more than 98242 when I tried it. (I did the script in Python, doubling the number of * until I got one that failed, and the preceding one that passed; I then did a binary search over that interval for the first one that failed. The whole test took less than a second t...
How to edit multi-gigabyte text files? Vim doesn't work =( [closed]
... Exact same issue.... a "using" statement at the top of a SQL script for a large table, or a file group that doesn't exist in the target system. I use Free File Splitter to bust them up, the the command line below to rejoin.
– EBarr
Feb 12 '15 at...
Plot a legend outside of the plotting area in base graphics?
...ike below. Then you have to just click where you want after load following script.
legend(locator(1),c("group A", "group B"), pch = c(1,2), lty = c(1,2))
Try it
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Why do you create a View in a database?
...eir own queries (through some interactive SQL program or writing their own scripts), they can run select * from customer which gives them access to everything. If you give them access to the view and not the table, they cannot access fields that aren't in the view.
– Graeme Per...
How to get ID of the last updated row in MySQL?
... and
mysql_insert_id() is that LAST_INSERT_ID() is made easy to use in
scripts while mysql_insert_id() tries to provide more exact
information about what happens to the AUTO_INCREMENT column.
PHP mysqli_insert_id()
Performing an INSERT or UPDATE statement using the LAST_INSERT_ID()
fun...
How to convert Linux cron jobs to “the Amazon way”?
...hen certain CloudWatch stats aren't what they should be. We use cloud-init scripts to get the cronjobs running. Of course, this comes with a downtime, leading to missed cronjobs (when running certain tasks every minute, like we do).
Use the logic that rcron uses. Of course, the magic is not really i...
Function return value in PowerShell
...yword really just indicates a logical exit point
Thus, the following two script blocks will do effectively the exact same thing:
$a = "Hello, World"
return $a
$a = "Hello, World"
$a
return
The $a variable in the second example is left as output on the pipeline and, as mentioned, all outpu...
How do I empty an array in JavaScript?
...o 0. Some have argued that this may not work in all implementations of JavaScript, but it turns out that this is not the case. It also works when using "strict mode" in ECMAScript 5 because the length property of an array is a read/write property.
Method 3 (as suggested by Anthony)
A.splice(0,A.le...
In PHP, what is a closure and why does it use the “use” identifier?
...res and functions have the same speed. Yes, you can use them all over your scripts.
As @Mytskine pointed out probably the best in-depth explanation is the RFC for closures. (Upvote him for this.)
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