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How to force a html5 form validation without submitting it via jQuery
...e browsers have (such as Chrome), unfortunately the only way to do that is by submitting the form, like this:
var $myForm = $('#myForm');
if(! $myForm[0].checkValidity()) {
// If the form is invalid, submit it. The form won't actually submit;
// this will just cause the browser to display the ...
Two-dimensional array in Swift
I get so confused about 2D arrays in Swift. Let me describe step by step. And would you please correct me if I am wrong.
8 ...
Set time part of DateTime in ruby
...isely
DateTime.now.change({ hour: 0 })
Within a purely Ruby environment:
now = DateTime.now
DateTime.new(now.year, now.month, now.day, 0, 0, 0, now.zone)
OR
now = DateTime.now
DateTime.parse(now.strftime("%Y-%m-%dT00:00:00%z"))
...
What is the purpose of backbone.js?
...Rails:
http://www.jamesyu.org/2011/01/27/cloudedit-a-backbone-js-tutorial-by-example/
http://www.jamesyu.org/2011/02/09/backbone.js-tutorial-with-rails-part-2/
p.s. There is also this wonderful Collection class that lets you deal with collections of models and mimic nested models, but I don't wan...
setting multiple column using one update
...
Just add parameters, split by comma:
UPDATE tablename SET column1 = "value1", column2 = "value2" ....
See also: mySQL manual on UPDATE
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How to convert an int to string in C?
...
To be sure tat ENOUGH is enough we can do it by malloc(sizeof(char)*(int)log10(num))
– Hauleth
Nov 24 '11 at 13:25
2
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How to create cron job using PHP?
...e five columns each of which represent a chronological 'operator' followed by the full path and command to execute:
* * * * * home/path/to/command/the_command.sh
Each of the chronological columns has a specific relevance to the schedule of the task. They are as follows:
Minutes represents the min...
Safe (bounds-checked) array lookup in Swift, through optional bindings?
...not contiguous. E.g. for Set instances, if we were to access a set element by index (SetIndex<Element>), we can run into runtime exceptions for indices that are >= startIndex and < endIndex, in which case the safe subscript fails (see e.g. this contrived example).
–...
Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
...ed.
Ubuntu 16.04 actually has an executable for it at /usr/bin/[ provided by coreutils, but the bash built-in version takes precedence.
Nothing is altered in the way that Bash parses the command.
In particular, < is redirection, && and || concatenate multiple commands, ( ) generates su...
StringBuilder vs String concatenation in toString() in Java
...n a loop - that's usually when the compiler can't substitute StringBuilder by itself.
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