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Handling optional parameters in javascript
... 2) { // if only two arguments were supplied
if (Object.prototype.toString.call(parameters) == "[object Function]") {
callback = parameters;
}
}
//...
}
You can also use the arguments object in this way:
function getData (/*id, parameters, callback*/) {
var id = arguments[0],...
How do I add indices to MySQL tables?
...
ALTER TABLE `table` ADD INDEX `product_id_index` (`product_id`)
Never compare integer to strings in MySQL. If id is int, remove the quotes.
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Autocomplete applying value not label to textbox
Im having troubles trying to get the autocomplete to work properly.
3 Answers
3
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An item with the same key has already been added
... get this error whenever I submit the form also the action method is not being called because of this:
21 Answers
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How set background drawable programmatically in Android
...drawable.ready); is correct.
Another way to achieve it is to use the following:
final int sdk = android.os.Build.VERSION.SDK_INT;
if(sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
layout.setBackgroundDrawable(ContextCompat.getDrawable(context, R.drawable.ready) );
} else {
layout.set...
How do I convert a String object into a Hash object?
I have a string which looks like a hash:
13 Answers
13
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putting datepicker() on dynamically created elements - JQuery/JQueryUI
...nt each of them to be able to display a calendar on click. The code I am using is:
12 Answers
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Are nested transactions allowed in MySQL?
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InnoDB supports SAVEPOINTS.
You can do the following:
CREATE TABLE t_test (id INT NOT NULL PRIMARY KEY) ENGINE=InnoDB;
START TRANSACTION;
INSERT
INTO t_test
VALUES (1);
SELECT *
FROM t_test;
id
---
1
SAVEPOI...
LINQ's Distinct() on a particular property
I am playing with LINQ to learn about it, but I can't figure out how to use Distinct when I do not have a simple list (a simple list of integers is pretty easy to do, this is not the question). What I if want to use Distinct on a list of an Object on one or more properties of the object?
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JPA EntityManager: Why use persist() over merge()?
EntityManager.merge() can insert new objects and update existing ones.
15 Answers
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