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Is there a difference between foreach and map?

... 'purpose' of map is the new list of values, it doesn't really matters the order of execution. in fact, some execution environments generate parallel code, or even introduce some memoizing to avoid calling for repeated values, or lazyness, to avoid calling some at all. foreach, on the other hand, ...
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for each loop in Objective-C for accessing NSMutable dictionary

... Is this loop return same order all the time? Or do we need another way to use it for TableView sections? – ymutlu Oct 31 '14 at 14:55 ...
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Storing Data in MySQL as JSON

...er rules that MySQL follows when comparing JSON values, see Comparison and Ordering of JSON Values. MySQL 5.7.8 also introduces a number of functions for working with JSON values. These functions include those listed here: Functions that create JSON values: JSON_ARRAY(), JSON_MERGE(), a...
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What are the implications of using “!important” in CSS? [duplicate]

..., including author !important rules: w3.org/TR/CSS2/cascade.html#cascading-order – ANeves thinks SE is evil Oct 25 '11 at 9:45 1 ...
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What does the ng stand for in Angular.js directives

...is recommended that you do not use the ng prefix on your own directives in order to avoid possible name collisions in future versions of Angular. From the FAQ: Why is this project called "AngularJS"? Why is the namespace called "ng"? Because HTML has Angular brackets and "ng" sounds like "Angular"....
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Accessing dict keys like an attribute?

...s on it for aesthetic reasons, I continue to use a dict for consistency in order to enhance readability. I'm sure the OP has long-since resolved this to his satisfaction, but if he still wants this functionality, then I suggest he download one of the packages from pypi that provides it: Bunch is ...
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How to parse JSON in Scala using standard Scala classes?

...rvice.common.kit.{IsvCode} import scala.util.Try /** * */ case class Order(log: String) { implicit lazy val formats = org.json4s.DefaultFormats lazy val json: json4s.JValue = parse(log) lazy val create_time: String = (json \ "create_time").extractOrElse("1970-01-01 00:00:00") lazy v...
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Redis key naming conventions?

... option @EranH., it is the best practice to iterate keys. scan is used in order to incrementally iterate over a collection of elements. – Kishor Pawar May 16 '16 at 11:08 2 ...
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Bulk insert with SQLAlchemy ORM

...ods, which provide hooks into subsections of the unit of work process in order to emit Core-level INSERT and UPDATE constructs with a small degree of ORM-based automation. The example below illustrates time-based tests for several different methods of inserting rows, going from the most a...
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Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]

...ical: should the row names be in ascending (FALSE) or in descending (TRUE) order? #' @param coldecreasing logical: should the col names be in ascending (FALSE) or in descending (TRUE) order? #' @param default_value numeric: default value of matrix entries if no value exists in data.frame for the ent...