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Is there any way to prevent input type=“number” getting negative values?
...tive number from keyboard.
Solution is to prevent with key code:
// Select your input element.
var number = document.getElementById('number');
// Listen for input event on numInput.
number.onkeydown = function(e) {
if(!((e.keyCode > 95 && e.keyCode < 106)
|| (e....
What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
... have to find the name used to index it. To find that, issue the following select:
SHOW CREATE TABLE region;
This should show you the name of the index, something like this:
CONSTRAINT region_ibfk_1 FOREIGN
KEY (country_id) REFERENCES
country (id) ON DELETE NO
ACTION ON UPDATE NO ACT...
How to easily truncate an array with JavaScript?
...
If you want to selectively pull elements out of an array, you can use the jQuery.grep method.
(from the jQuery docs)
var arr = [ 1, 9, 3, 8, 6, 1, 5, 9, 4, 7, 3, 8, 6, 9, 1 ];
$("div").text(arr.join(", "));
arr = jQuery.grep(arr, functi...
Determine if variable is defined in Python [duplicate]
...ot much information in the question, so I believe only person asked it can select the best way to handle his case.
– Denis Otkidach
Oct 20 '09 at 7:58
140
...
Google Map API v3 — set bounds and center
... Sorry this is in the wrong place. It's meant to be a comment for the selected answer. But doesn't the extend function need to be inside your for loop?
– kidbrax
Feb 12 '11 at 14:04
...
Hibernate show real SQL [duplicate]
...
select this_.code from true.employee this_ where this_.code=? is what will be sent to your database.
this_ is an alias for that instance of the employee table.
...
Can't use method return value in write context
...
This is a much better answer than the one currently selected.
– SystemParadox
Sep 9 '11 at 14:20
20
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How do I check if string contains substring? [duplicate]
...shopping cart that displays product options in a dropdown menu and if they select "yes", I want to make some other fields on the page visible.
...
How to add onload event to a div element
... in that it's better to keep all js inside its own file? Is there a way to selectively run js when certain elements are loaded into the document?
– Ryan Walton
Dec 17 '15 at 20:51
...
How to change column datatype in SQL database without losing data
...
Alter column data type with check type of column :
IF EXISTS(
SELECT 1
FROM sys.columns
WHERE NAME = 'YourColumnName'
AND [object_id] = OBJECT_ID('dbo.YourTable')
AND TYPE_NAME(system_type_id) = 'int'
)
ALTER TABLE dbo.YourTable ALTER ...