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Persist javascript variables across pages? [duplicate]
... @AndersonGreen The storage is bound to the actual window/tab. If the window/tab is closed, the data is lost. If you’re looking for a more persistent solution, have a look at CMS’ answer. Techniques like Web storage have a different scope.
– Gumbo
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Validate uniqueness of multiple columns
...ase to insert the same record in table;
each process in parallel validates if there is a record with the same n fields;
validation for each request is passed successfully, and each process creates a record in the table with the same data.
To avoid this kind of behaviour, one should add a unique co...
What is the difference between buffer and cache memory in Linux?
To me it's not clear what's the difference between the two Linux memory concepts : buffer and cache . I've read through this post and it seems to me that the difference between them is the expiration policy:
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jQuery Datepicker with text input that doesn't allow user input
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As per WC3 HTML specification, its only <input readonly> or <input readonly="readonly"> without true/false w3.org/TR/html5/forms.html#the-readonly-attribute
– Ankit Sharma
Sep 21 '16 at 14:13
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Embed image in a element
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I preffer to use a button. if I find no answer I'll do it. thanks
– Amit Hagin
Jan 1 '12 at 20:52
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How to change the decimal separator of DecimalFormat from comma to dot/point?
...e separator either by setting a locale or using the DecimalFormatSymbols.
If you want the grouping separator to be a point, you can use an european locale:
NumberFormat nf = NumberFormat.getNumberInstance(Locale.GERMAN);
DecimalFormat df = (DecimalFormat)nf;
Alternatively you can use the Decimal...
error: command 'gcc' failed with exit status 1 while installing eventlet
...dev
For eventlet you might also need the libevent libraries installed so if you get an error talking about that you can install libevent with:
sudo apt-get install libevent-dev
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Delete files older than 10 days using shell script in Unix [duplicate]
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It depends of the date of the modification, like what ls -l displays. Are the date the same as ls -l ? But a simple test will tell you =)
– Gilles Quenot
Nov 21 '12 at 9:06
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Get index of selected option with jQuery
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I have a slightly different solution based on the answer by user167517. In my function I'm using a variable for the id of the select box I'm targeting.
var vOptionSelect = "#productcodeSelect1";
The index is returned with:
$(vOptionSelect)....
Block Comments in Clojure
... is also the comment macro which has a similar effect, but is implemented differently.
Both the above require that the thing that you're commenting out is otherwise a syntactically correct S-expression.
Some Lisp dialects have a multi-line comment that can contain arbitrary text, but I don't see o...