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JPA: How to have one-to-many relation of the same Entity type
...dress, I followed your suggestion to update both the User and Address (and call 'save' on both). But this resulted in a duplicate row being inserted into my Address table. Is this because I have misconfigured my CascadeType on the User's address field?
– Alex
A...
How to grey out a button?
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I had read that calls to setAlpha are expensive on CPU. Can anyone confirm?
– Ali Kazi
Jun 15 '16 at 7:37
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Select parent element of known element in Selenium
...lect']
This just means, look for a label (it could anything like a, h2) called labelName. Navigate to the parent of that label (i.e. div class="ParentDiv"). Search within the descendants of that parent to find any child element with the value of elementToSelect. With this, it will not select the ...
Set “this” variable easily?
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There are two methods defined for all functions in JavaScript, call(), and apply(). The function syntax looks like:
call( /* object */, /* arguments... */ );
apply(/* object */, /* arguments[] */);
What these functions do is call the function they were invoked on, assigning the value ...
How do I use a Boolean in Python?
...an-able concept for every object, which is used when function bool([x]) is called.
See more: object.nonzero and boolean-value-of-objects-in-python.
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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
... of an application. In particular, rand() and uniqid() are not cryptographically secure random number generators. See Scott's answer for a secure alternative.
If you do not need it to be absolutely unique over time:
md5(uniqid(rand(), true))
Otherwise (given you have already determined a unique ...
PHP page redirect [duplicate]
Can PHP make a redirect call after executing a function? I am creating a function on the completion of which I want it to redirect to a file located in the same root folder. Can it be done?
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jquery - fastest way to remove all rows from a very large table
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html("") calls empty() internally
– Emile Bergeron
Jun 16 '16 at 20:29
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How to set a default value for an existing column
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MSSQL is weird for calling default values "constraints". If anything, they are relaxations; the opposite of a constraint! They make more things valid, not fewer.
– Roman Starkov
May 11 '13 at 12:06
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Get HTML code from website in C#
...age into an HtmlDocument object and then select your required element.
// Call the page and get the generated HTML
var doc = new HtmlAgilityPack.HtmlDocument();
HtmlAgilityPack.HtmlNode.ElementsFlags["br"] = HtmlAgilityPack.HtmlElementFlag.Empty;
doc.OptionWriteEmptyNodes = true;
try
{
var web...