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Evaluating string “3*(4+2)” yield int 18 [duplicate]
...can evaluate a numeric expression contained in a string and return the result? F.e.:
14 Answers
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Select elements by attribute in CSS
...ny problems supporting non-standard attributes, so you should be able to filter them with attribute selectors; and
you don't have to worry about CSS validation either, as CSS doesn't care about non-namespaced attribute names as long as they don't break the selector syntax.
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Find duplicate lines in a file and count how many time each line was duplicated?
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Assuming there is one number per line:
sort <file> | uniq -c
You can use the more verbose --count flag too with the GNU version, e.g., on Linux:
sort <file> | uniq --count
share
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Get the value of a dropdown in jQuery
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If you're using a <select>, .val() gets the 'value' of the selected <option>. If it doesn't have a value, it may fallback to the id. Put the value you want it to return in the value attribute of each <option>
Edit: See commen...
Exported service does not require permission: what does it mean?
...d it adding android:exported property android:exported="false" like so:
<service android:name=".MyService"
android:exported="false">
<intent-filter>
<action android:name="org.example.android.myservicedemo.IService" />
</intent-filter>
</service>
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Add Favicon to Website [duplicate]
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or if you don't want to work with .ico files <link rel=icon href=/favicon.png>
– Subin Sebastian
Nov 28 '16 at 9:19
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google protocol buffers vs json vs XML [closed]
...owing schema in advance
standard for SOAP etc
good tooling support (xsd, xslt, sax, dom, etc)
pretty verbose
Protobuf
very dense data (small output)
hard to robustly decode without knowing the schema (data format is internally ambiguous, and needs schema to clarify)
very fast processing
not inte...
Call two functions from same onclick [duplicate]
...lons ; to the end of the function calls in order for them both to work.
<input id="btn" type="button" value="click" onclick="pay(); cls();"/>
I don't believe the last one is required but hey, might as well add it in for good measure.
Here is a good reference from SitePoint http://referenc...
Get current URL path in PHP [duplicate]
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<?php
function current_url()
{
$url = "http://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
$validURL = str_replace("&", "&amp", $url);
return $validURL;
}
//echo "page URL is : ".current_url...
ORA-01950: no privileges on tablespace 'USERS' [closed]
... data because you have a quota of 0 on the tablespace. To fix this, run
ALTER USER <user> quota unlimited on <tablespace name>;
or
ALTER USER <user> quota 100M on <tablespace name>;
as a DBA user (depending on how much space you need / want to grant).
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