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Bureau of International Labor Affairs (ILAB)

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adjective

1 attributive Used to single out an individual member of a specified group or class.

specific , certain, distinct, separate, isolated
Contrasted with universal

2 attributive Especially great or intense.

special , extra special, especial, exceptional, unusual, marked, singular, uncommon, notable, noteworthy, remarkable, outstanding, unique

3 Insisting that something should be correct or suitable in every detail; fastidious.

fussy , fastidious, meticulous, punctilious, discriminating, selective, painstaking, exacting, demanding, critical, over-particular, over-fastidious, finicky, faddish, finical, dainty

1 A detail.

detail , item, point, fine point, specific, specification, element, aspect, respect, regard, particularity, fact, feature, circumstance, thing
particulars
information , data, facts, facts and figures, statistics, evidence, subject matter, ideas, details, particulars

2 Philosophy An individual item, as contrasted with a universal quality.

Phrases

in particular

Especially (used to show that a statement applies to one person or thing more than any other)

specific , special
particularly , specifically, to be specific, especially, specially
Origin

Late Middle English: from Old French particuler, from Latin particularis ‘concerning a small part’, from particula ‘small part’.

Pronunciation

particular

/pəˈtɪkjʊlə/
nadir

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Eric Lippert's blog

Posted on by ericlippert

Last time I explained why the designers of C# wanted to have both checked and unchecked arithmetic in C#: unchecked arithmetic is fast and dangerous, checked arithmetic is slightly slower but turns subtle, easy-to-miss mistakes into program-crashing exceptions. It seems clear why there is a “checked” keyword in C#, but since unchecked arithmetic is the default, why is there an “unchecked” keyword?

There are a bunch of reasons; here are the ones that immediately come to mind.

First reason: constant integer arithmetic is always checked by default. This can be irritating. Suppose for example you have some interop code and you wish to create a constant for the E_FAIL :

That’s an error because that number is too big to fit into an int . But you might not want to use a uint . You might think well I’ll just say

But that is also illegal because constant arithmetic conversions are also always checked by default . So we still have a conversion that is going to fail. What you have to do is turn off checked constant arithmetic:

Second reason: you might have a block of code in which you want all the arithmetic to be checked, but there is one part — say, the inside of a performance-sensitive loop — where you want to get the maximum speed, and are willing to turn off checked arithmetic there and there alone.

Third reason: C# allows you to change the default to checked arithmetic for non-constant integer math via a compiler flag. If you’ve done so, and you need to turn it back off again on a temporary basis, then you have to use the unchecked keyword.

Fourth reason: the unchecked block can be used as a form of self-documenting code, to say “I am aware that the operation I’m doing here might overflow, and that’s fine with me.” For example, I’ll often write something like:

The “unchecked” emphasizes to the reader that we fully expect that multiplying and adding hash codes could overflow, and that this is OK; we want to be truncating to 32 bits and we expect that the numbers will be large.

There were a bunch of good comments to the previous post; among the questions posed in those comments were:

What do you think of the compiler switch that changes from unchecked to checked arithmetic as the default?

I’m not a big fan of this approach, for several reasons. First, hardly anyone knows about the switch; there’s a user education problem here. Second, I like it when the text of the program can be understood correctly by the reader without having to know the details of the compilation process. Third, it adds testing burden; now there are two ways that every program can be compiled, and that means that there are more test cases in the test matrix.

Several recent studies have investigated how engineers spend their time; that is, the work tasks they perform and how their time is distributed among these. Research Puma Platform Trace Trainers In Black With Gum Sole clearance store online pick a best cheap online sale official site opZbvZ
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suggests that there are several key themes present in engineers’ work: (1) technical work (i.e., the application of science to product development); (2) social work (i.e., interactive communication between people); (3) computer-based work; (4) information behaviours. Amongst other more detailed findings, a recent work sampling study [14] found that engineers spend 62.92% of their time engaged in technical work, 40.37% in social work, and 49.66% in computer-based work. Furthermore, there was considerable overlap between these different types of work, with engineers spending 24.96% of their time engaged in technical and social work, 37.97% in technical and non-social, 15.42% in non-technical and social, and 21.66% in non-technical and non-social.

Engineering is also an information-intensive field, with research finding that engineers spend 55.8% of their time engaged in various different information behaviours, including 14.2% actively seeking information from other people (7.8%) and information repositories such as documents and databases (6.4%). 100% authentic for sale Dunhill Traction Leather Wingtip Brogues cheap sale best seller vFR5j

The time engineers spend engaged in such activities is also reflected in the competencies required in engineering roles. In addition to engineers’ core technical competence, research has also demonstrated the critical nature of their personal attributes, project management skills, and cognitive abilities to success in the role. [15]

Main article: List of engineering branches

There are many branches of engineering, each of which specializes in specific technologies and products. Typically engineers will have deep knowledge in one area and basic knowledge in related areas. For example, mechanical engineering curricula typically includes introductory courses in electrical engineering, computer science, materials science, metallurgy, mathematics, and software engineering.

When developing a product, engineers typically work in interdisciplinary teams. For example, when building robots an engineering team will typically have at least three types of engineers. A mechanical engineer would design the body and actuators. An electrical engineer would design the power systems, sensors, electronics, embedded software in electronics, and control circuitry. Finally, a software engineer would develop the software that makes the robot behave properly. Engineers that aspire to management engage in further study in business administration, project management and organizational or business psychology. Often engineers move up the management hierarchy from managing projects, functional departments, divisions and eventually CEO's of a multi-national corporation.

Tooling/Build Issue

Incorporating React Native required updates to our build processes for each app. We use CircleCI to build our projects which needed to be reconfigured to support the additional React Native build steps.

As previously shared, on the Android side this was not as straightforward as we would have hoped.

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Once our build was updated to include the required React Native tasks, it increased the duration of our release build on CircleCI by ~20%.

After removal of the final React Native feature from our codebase we saw the following improvements:

The Android team also experienced issues at times with Android/Gradle build tooling being in conflict with React Native. Most recently we had been working around issues with Gradle 4 .

The iOS team had its fair share of challenges as well.

Configuring the build was painful because we had a non-standard file structure for React Native. Because of our separate project repos, we pulled in the React Native repo under srcroot/ReactNative and a lot of the existing build tools assumed the default app structure which is /ReactNative/ios/…ios.

Additionally, we used cocoapods for dependency management which was originally the suggested way to include React Native, but was deprecated along the way. This was further exacerbated by our non-standard file structure and we had to include some annoying hacks in our Podfile to get it to read from the correct place.

Since cocoapods was no longer the canonical way to include React Native, Podfile updates were dependent on the community to update which weren’t always in sync. There were several versions where the css/Yoga dependency was updated but the Podfile was referencing an incorrect version.. Up until the end, we had some nasty post-install hacks to essentially sed/regex some of the include calls.

Lastly, CI for the iOS project was a pain point as well. We now had to add an npm dependency layer and make sure those were being updated properly before continuing the install. This added nontrivial amounts of time to our build step.

There was also an issue that caused a crash because one version of npm had a `package.lock` and the other didn’t which caused us to install incorrect versions of a dependency across a React Native upgrade.

React Native Challenges

React Native as a whole has been moving very fast, and we found documentation was lacking at times. Particularly as we were first adopting, we found that documentation/answers for a particular version may, or may not, still be relevant.

Documentation for integrating React Native with an existing project seemed sparse at the time. This was a contributing factor to the challenges we had updating our CI builds.

As React Native has continued to evolve, the documentation and supporting community contributions have improved. It’s likely that if we were starting today, we would have been able find answers to some of our questions more easily.

We initially started with NavigationExperimental, which wasn’t the easiest navigation library to work with. When React Navigation came out, it quickly became the community accepted navigation and NavigationExperimental was deprecated before ReactNavigation was truly fully baked.

Despite this; there were things that we couldn’t do in ReactNavigation without kludging things together (example: Push flows inside a presented modal flow)

As mentioned before, there were certain times where performance issues were noticed.

We were able to build some very nice animations that looked great on well specced iOS Android devices, but did not perform well on under powered Android devices that are more prevalent in international markets.

The load time when entering into the React Native portion of the app was longer than we would have liked. It often did not feel like a seamless transition.

When prototyping the standalone graphing rendering performance was a large enough concern that React Native was scrapped in favor of a native experience.

Because it’s not built in conjunction with iOS or Android, React Native lags behind the native platforms at times. It’s often largely dependent on the community to support new native features.

One such example was the urgent need for support for the iPhone X. We ultimately opted to leave the feature without SafeArea support for a short period of time as it was going to be introduced shortly. Utilizing is one example of a platform specific feature that cross-platform developers would need to be aware of to develop compliant apps.

At other times, React Native lags behind in the adoption of new platform requirements such as Android apps being required to target api 26 by August 2018. There are several Fendi flat sandals sale new clearance 100% authentic free shipping outlet YHz0Rmq
for this requirement.

React Native’s non backwards compatible upgrades were pretty frustrating. One example was the Versace goldtone Medusa embossed slides sale authentic outlet explore 2014 unisex cheap price sale very cheap free shipping great deals 3z3OjRdn
when React Native upgraded it’s underlying React library.

Without maintaining our own custom fork, many third party libraries became unusable if they were no longer being maintained.

Documentation

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