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How to retrieve the first word of the output of a command in bash?
...or example: echo "word1 word2" . I want to put a pipe ( | ) and get word1 from the command.
12 Answers
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How to add a new method to a php object on the fly?
... to the function as a parameter if you want to work with data or functions from the object instance! Also, you will not be able to access private or protected members of the class from these functions.
Good question and clever idea using the new anonymous functions!
Interestingly, this works: Rep...
Dynamic validation and name in a form with AngularJS
...e solution (or workaround) and the suggested approach by the angular team (from docs.angularjs.org/api/ng.directive:form): "Since you cannot dynamically generate the name attribute of input elements using interpolation, you have to wrap each set of repeated inputs in an ngForm directive and nest the...
Twitter's typeahead.js suggestions are not styled (have no border, transparent background, etc.)
...o the theme of
your web page.
My solution was thus to copy the styling from the example I wished to replicate:
.tt-query, /* UPDATE: newer versions use tt-input instead of tt-query */
.tt-hint {
width: 396px;
height: 30px;
padding: 8px 12px;
font-size: 24px;
line-height: 30p...
What's the point of JAXB 2's ObjectFactory classes?
...ew to using JAXB, and I used JAXB 2.1.3's xjc to generate a set of classes from my XML Schema. In addition to generating a class for each element in my schema, it created an ObjectFactory class.
...
convert UIImage to NSData
...m (0.8 in this example) is the compression quality
//expressed as a value from 0.0 to 1.0, where 1.0 represents
//the least compression (or best quality).
You can also put this code inside a GCD block and execute in another thread, showing an UIActivityIndicatorView during the process ...
//*co...
In C#, What is a monad?
...ing all day is combining some functions together to build bigger functions from them. Usually you have not only functions in your toolbox but also other things like operators, variable assignments and the like, but generally your program combines together lots of "computations" to bigger computation...
How to create NS_OPTIONS-style bitmask enumerations in Swift?
... 0 }
static var allZeros: MyOptions { return self(0) }
static func fromMask(raw: UInt) -> MyOptions { return self(raw) }
var rawValue: UInt { return self.value }
static var None: MyOptions { return self(0) }
static var FirstOption: MyOptions { return self(1 << 0) }
...
How to find all positions of the maximum value in a list?
...timated probability of occurrence of each condition and inferences allowed from predecessors. It was a little tricky figuring out the proper initialization values for max_val and max_indices which worked for all possible cases, especially if the max happened to be the first value in the list — but...
difference between each.with_index and each_with_index in Ruby?
...
to allow wider usage with various enumerators.
to allow index to start from a number other than 0.
Today, using with_index would be better from the point of view of generality and readability, but from the point of view of speeding up the code, each_with_index runs slightly faster than each.wi...