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How to evaluate a math expression given in string form?

...is in a server context with user input. The executed JavaScript can access all Java classes and thus hijack your application without limit. – Boann Sep 21 '15 at 11:08 4 ...
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For each row in an R dataframe

... How do you actually implement (row)? Is it dataframe$column? dataframe[somevariableNamehere]? How do you actually say its a row. The pseudocode "function(row) dostuff" how would that actually look? – uh_big_mike_boi...
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Remove a cookie

... @machineaddict unset($_COOKIE['Hello']); is actually important if you might check the cookie somewhere later in the code. – Andreas Hultgren Jun 13 '14 at 12:08 ...
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Tracking Google Analytics Page Views with AngularJS

...cs does not count it as a new page load. Fortunately there is a way to manually tell GA to log a url as a new pageview. _gaq.push(['_trackPageview', '<url>']); would do the job, but how to bind that with AngularJS? Here is a service which you could use: (function(angular) { angular.modu...
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Groovy Shell warning “Could not open/create prefs root node …”

... Is it possible to do this progmatically? – facetoe Oct 15 '13 at 6:20 13 ...
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How do I set the timeout for a JAX-WS webservice client?

...es this down. I'm not sure why you would want to download the WSDL dynamically but the system properties: sun.net.client.defaultConnectTimeout (default: -1 (forever)) sun.net.client.defaultReadTimeout (default: -1 (forever)) should apply to all reads and connects using HttpURLConnection which J...
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ruby 1.9: invalid byte sequence in UTF-8

...n't have any encoding specific options and the stuff that comes in is basically not properly tagged. What would be the best way to actually work with that incoming data? I tried .encode with the replace and invalid options set, but no success so far... ...
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Replace comma with newline in sed on MacOS?

...line, e.g. echo "a,b" | sed -e $'s/,/\\\n/g' Note this will not work on all shells, but will work on the most common ones. share | improve this answer | follow ...
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unbound method f() must be called with fibo_ instance as first argument (got classobj instance inste

... OK, first of all, you don't have to get a reference to the module into a different name; you already have a reference (from the import) and you can just use it. If you want a different name just use import swineflu as f. Second, you are...
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How can I make Flexbox children 100% height of their parent?

...aw this at the last moment before reverting to absolute - which comes with all sorts of problems. – Peter May 2 at 10:18 add a comment  |  ...