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Logic to test that 3 of 4 are True
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Long but very simple, (disjuntive) normal form:
(~a & b & c & d) | (a & ~b & c & d) | (a & b & ~c & d) | (a & b & c & ~d)
It may be simplified but that requires more thinking :P
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Should I size a textarea with CSS width / height or HTML cols / rows attributes?
Every time I develop a new form that includes a textarea I have the following dilemma when I need to specify its dimensions:
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What is the difference between sed and awk? [closed]
...e, you could replace all the negative numbers in some text that are in the form "minus-sign followed by a sequence of digits" (e.g. "-231.45") with the "accountant's brackets" form (e.g. "(231.45)") using this (which has room for improvement):
sed 's/-\([0-9.]\+\)/(\1)/g' inputfile
I would use aw...
Better way to check variable for null or empty string?
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Beware false negatives from the trim() function — it performs a cast-to-string before trimming, and thus will return e.g. "Array" if you pass it an empty array. That may not be an issue, depending on how you process your data, but with the code you supply, a field named question[...
Invalid argument supplied for foreach()
... an error, it might cause another one.
Be aware: If you expect a specific form of array to be returned, this might fail you. More checks are required for that.
E.g. casting a boolean to an array (array)bool, will NOT result in an empty array, but an array with one element containing the boolean...
How do I do a Date comparison in Javascript? [duplicate]
...e = new Date("12/03/2008");
or, if the string you want is the value of a form field, as it seems it might be:
var someDate = new Date(document.form1.Textbox2.value);
Should that string not be something that JavaScript recognizes as a date, you will still get a Date object, but it will be "inval...
How can I “disable” zoom on a mobile web page?
I am creating a mobile web page that is basically a big form with several text inputs.
10 Answers
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Representational state transfer (REST) and Simple Object Access Protocol (SOAP)
...rotocol"
SOAP is a method of transferring messages, or small amounts of information, over the Internet. SOAP messages are formatted in XML and are typically sent using HTTP (hypertext transfer protocol).
Rest - Representational state transfer
Rest is a simple way of sending and receiving data b...
Print a list in reverse order with range()?
...nd, but it needs to be range(10), not range(9). Also, if you want a fully-formed list (for slicing, etc.), you should do list(reversed(range(10))).
– John Y
Sep 2 '11 at 16:49
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Typing Enter/Return key using Python and Selenium?
...a quick way to type and Enter or Return key in Selenium. Unfortunately the form I'm trying to test (not my own code so I can't modify) doesn't have a Submit button. When working with it manually, I just type ENTER or RETURN . I need to know how to do that with the Selenium type command as there...