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Can an array be top-level JSON-text?
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Yes, but you should consider making the root an object instead in some scenarios, due to JSON hijacking. This is an information disclosure vulnerability based on overriding the array constructor in JavaScript.
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How to resume Fragment from BackStack if exists
...teName);
ft.commit();
}
}
The conditional was changed a bit since selecting the same fragment while it was visible also caused duplicate entries.
Implementation:
I highly suggest not taking the the updated replaceFragment() method apart like you did in your code. All the logic is containe...
jQuery: Check if div with certain class name exists
...presumably because it changes the native features jQuery can use to do the selection. Here's a test case where the div exists, and here's one where it doesn't exist.
– T.J. Crowder
Apr 26 '11 at 6:10
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how to check if a form is valid programmatically using jQuery Validation Plugin
... jQuery Validation plugin:
$("#form_id").valid();
Checks whether the selected form is valid or whether all selected
elements are valid. validate() needs to be called on the form before
checking it using this method.
Where the form with id='form_id' is a form that has already had .validat...
Differences between dependencyManagement and dependencies in Maven
...rhead, using <dependencyManagement> over <dependencies> in the root .pom? Child poms could be much shorter.
– Janez Kuhar
Aug 24 '16 at 13:13
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Android List Preferences: have summary as selected value?
...ile. How would I set the summary of the list activity to the value that is selected?
11 Answers
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How do I convert an interval into a number of hours with postgres?
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Probably the easiest way is:
SELECT EXTRACT(epoch FROM my_interval)/3600
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__proto__ VS. prototype in JavaScript
...nstructor is nothing but the function a itself
and __proto__ points to the root level Object of JavaScript.
Let us see what happens when we use a function with new key word.
var b = new a ('JavaScript');
When JavaScript executes this code it does 4 things:
It creates a new object, an empty obj...
What is the difference between HTTP_HOST and SERVER_NAME in PHP?
... digging in some PHP bug reports regarding the subject, I learned that the root of the problem is in web server used, that it incorrectly returned HTTP Host header when SERVER_NAME was requested. So I dug into Apache HTTPD bug reports using various keywords regarding the subject and I finally found ...
When is localStorage cleared?
... three conditions are met: (a) user clears recent history, (b) cookies are selected to be cleared, (c) time range is "Everything"
In Chrome, localStorage is cleared when these conditions are met: (a) clear browsing data, (b) "cookies and other site data" is selected, (c) timeframe is "from beginnin...