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Detect all changes to a (immediately) using JQuery
...element, and should work across all browsers:
$('.myElements').each(function() {
var elem = $(this);
// Save current value of element
elem.data('oldVal', elem.val());
// Look for changes in the value
elem.bind("propertychange change click keyup input paste", function(event){
...
How do I do a multi-line string in node.js?
...
node v4 and current versions of node
As of ES6 (and so versions of Node greater than v4), a new "template literal" intrinsic type was added to Javascript (denoted by back-ticks "`") which can also be used to construct multi-line strings, as in:
`t...
Migration: Cannot add foreign key constraint
...
Add it in two steps, and it's good to make it unsigned too:
public function up()
{
Schema::create('priorities', function($table) {
$table->increments('id', true);
$table->integer('user_id')->unsigned();
$table->string('priority_name');
$table->sm...
Where can I get Google developer key
... API like chat, contacts and so on...
I am stuck on developer_key as mentioned in gdata doc.
16 Answers
...
Large, persistent DataFrame in pandas
....com/pydata/pandas/issues/407).
At the moment there isn't a perfect solution (here's a tedious one: you could transcribe the file row-by-row into a pre-allocated NumPy array or memory-mapped file--np.mmap), but it's one I'll be working on in the near future. Another solution is to read the file in...
How to find an available port?
...d like to find a port in an automatic way. In this respect I have two questions.
16 Answers
...
How to save a PNG image server-side, from a base64 data string
..._array($type, [ 'jpg', 'jpeg', 'gif', 'png' ])) {
throw new \Exception('invalid image type');
}
$data = str_replace( ' ', '+', $data );
$data = base64_decode($data);
if ($data === false) {
throw new \Exception('base64_decode failed');
}
} else {
throw new \Ex...
Font-awesome, input type 'submit'
...hich actually links with class 'btn' from twitter-bootstrap) in my applications, but can't add icons on 'input type submit'.
...
In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...list_values_as_xxx are simple generators with a single line for x in input_param: yield int(x) and the other two respectively with str and float
– madtyn
Jan 31 '18 at 23:11
...
How do I drop a foreign key constraint only if it exists in sql server?
...
The more simple solution is provided in Eric Isaacs's answer. However, it will find constraints on any table. If you want to target a foreign key constraint on a specific table, use this:
IF EXISTS (SELECT *
FROM sys.foreign_keys
WHERE ob...