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Christina Mulligan

The People's Programmable Robot - 0 views

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    Open-source Poppy Project robot and Python framework is making robotic production cheap and accessible to all
Shahriar Kabir

Free Icon Maker | Web Design - 0 views

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    Free Icon Maker is an intense tool that helps designers and developers to make, customize and download symbol sets for free. There are a wide mixed bag of free symbols here. You'll without a doubt find no less than a couple sets that you can put to great utilization in your own tasks, whether individual or business.
Shahriar Kabir

MachForm - Stunning HTML And PHP Web Form Builder - 0 views

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    MachForm helps you make proficient evaluation form with greatest similarity. Lives up to expectations awesome on desktop PCs or portable/touch gadgets (iPhone, iPad, Android gadgets). Building structures has never been this good times.
Shahriar Kabir

Brackets - An Open Source Text Editor - 0 views

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    Brackets is a cutting edge, open source text editor that comprehends web design. With centered visual tools and preprocessor bolster, Brackets is a cutting edge content tool that makes it simple to outline in the program.
fspore

Values, Types, and Operators :: Eloquent JavaScript - 0 views

  • Not all operators are symbols. Some are written as words. One example is the typeof operator, which produces a string value naming the type of the value you give it.
  • Having such numbers is useful for storing strings inside a computer because it makes it possible to represent them as a sequence of numbers. When comparing strings, JavaScript goes over them from left to right, comparing the numeric codes of the characters one by one.
  • There is only one value in JavaScript that is not equal to itself, and that is NaN, which stands for “not a number”.
  • ...16 more annotations...
  • In practice, you can usually get by with knowing that of the operators we have seen so far, || has the lowest precedence, then comes &&, then the comparison operators (>, ==, and so on), and then the rest. This order has been chosen such that, in typical expressions like the following one, as few parentheses as possible are necessary:
  • The difference in meaning between undefined and null is an accident of JavaScript’s design, and it doesn’t matter most of the time. In the cases where you actually have to concern yourself with these values, I recommend treating them as interchangeable (more on that in a moment).
  • . Yet in the third expression, + tries string concatenation before numeric addition
  • When something that doesn’t map to a number in an obvious way (such as "five" or undefined) is converted to a number, the value NaN is produced.
  • Further arithmetic operations on NaN keep producing NaN, so if you find yourself getting one of those in an unexpected place, look for accidental type conversions.
  • g ==, the outcome is easy to predict: you should get true when both values are the same, except in the case of NaN.
  • But when the types differ, JavaScript uses a complicated and confusing set of rules to determine what to do. In most cases, it just tries to convert one of the values to the other value’s type. However, when null or undefined occurs on either side of the operator, it produces true only if both sides are one of null or undefined.
  • That last piece of behavior is often useful. When you want to test whether a value has a real value instead of null or undefined, you can simply compare it to null with the == (or !=) operator.
  • The rules for converting strings and numbers to Boolean values state that 0, NaN, and the empty string ("") count as false, while all the other values count as true.
  • where you do not want any automatic type conversions to happen, there are two extra operators: === and !==. The first tests whether a value is precisely equal to the other, and the second tests whether it is not precisely equal. So "" === false is false as expected.
  • The logical operators && and || handle values of different types in a peculiar way. They will convert the value on their left side to Boolean type in order to decide what to do, but depending on the operator and the result of that conversion, they return either the original left-hand value or the right-hand value.
  • The || operator, for example, will return the value to its left when that can be converted to true and will return the value on its right otherwise. This conversion works as you’d expect for Boolean values and should do something analogous for values of other types.
  • This functionality allows the || operator to be used as a way to fall back on a default value. If you give it an expression that might produce an empty value on the left, the value on the right will be used as a replacement in that case.
  • The && operator works similarly, but the other way around. When the value to its left is something that converts to false, it returns that value, and otherwise it returns the value on its right.
  • Another important property of these two operators is that the expression to their right is evaluated only when necessary. In the case of true || X, no matter what X is—even if it’s an expression that does something terrible—the result will be true, and X is never evaluated. The same goes for false && X, which is false and will ignore X. This is called short-circuit evaluation.
  • - to negate a number
anonymous

microsoft remove trovi - 2 views

shared by anonymous on 28 Jul 15 - No Cached
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samonjur

Setting SEO Goals for your web site. - 0 views

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    Before going to work SEO one need to make a plan. Sometimes one can not reach the goal since want of perfect plan. There are a lot of key words which are used in websites; in these words which should be used by you depend on what your goal is.
Joel Bennett

The Performance of Arrays - Chris Burrows - 2 views

  • arrays of reference types are covariant in their element type, but not safely
  • where did that exception come from? It came from the runtime, which was in a unique position to know what the real type of the array object was, and the real type of the element. It needed to determine if the assignment was allowable and throw if not. Now if you think about this for a minute, you can see that it’s going to have to perform that check for every assignment to an array element
  • arrays are covariant only for reference types?
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  • So if I want to have an array of reference types, but get the runtime to treat it like an array of value types, what have I got to do? Just wrap the reference type in a value type
  • So I got rid of that check, right? But I added the initialization of a value type. Did I win or lose? Let’s do some timing to figure it out.
  • when I build Debug binaries, the Reference<T> trick makes my example about three times SLOWER.
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    Arrays are covariant only for reference types. If you use a struct wrapper to turn a reference type into a value type, the initialization of the value type takes less time than array assignment.
Joel Bennett

Generate .NET documentation with MindTouch 2010 - MindTouch Developer Blog - 4 views

  • The goal of mindtouch.doc was to generate hierarchical reference documentation that could easily be imported into an MindTouch install.
  • The generated documentation has an external dependency on a template called DocToc. The purpose of this template is to allow simple Table of content customization using DekiScript and to make it easy to include custom css for documentation pages.
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    It's like Sandcastle for MindTouch
Joel Bennett

Phalanger - The PHP Language Compiler for the .NET Framework - 5 views

  • Phalanger is a new PHP implementation introducing the PHP language into the family of compiled .NET languages
  • Makes PHP first-class citizen in the .NET languages family Compiles PHP language to the MSIL (Microsoft Intermediate Language), which is a byte-code assembly used by the .NET CLR Allows using .NET objects from the PHP language thanks to the PHP/CLR Language Extensions Enables using libraries written in PHP from other .NET languages
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    Compiles PHP to MSIL and now supports using .Net objects from PHP
Paris Polyzos

Develop With Passion® - Jean-Paul S. Boodhoo - 0 views

  • Being an effective unlearner enables you to take an unbiased look at a new way of approaching a situation/problem/challenge without the weight of being dragged down by your old baggage(ideas
  • Being an effective unlearner enables you to take an unbiased look at a new way of approaching a situation/problem/challenge without the weight of being dragged down by your old baggage(ideas)
  • One strategy to minimize this is to seek out and collaborate with people who make you feel a little out of your element
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  • Unfortunately, with the large number of these blogs, many people have fallen into the trap of subscribing to too many
  • he started to get frustrated by the abscensce of any new insights/techniques he was sure would magically manifest when working through coding sessions.
  • Any man who reads too much and uses his own brain too little falls into lazy habits of thinking
  • Don't think about what you have accomplished. Rather, what you should have accomplished with your abilities.
  • People who allow themselves to get into this mode more often can find that the spikes in creativity that result, can carry forward with them into the stuff that they have to tackle on a day to day basic
  • Gifts, however , have to be opened, and then further used, if they are going to be of any value
  • When you think you have caught up with the skill of [developer x], either their skill level has increased or you have found another developer whose skill you covet
  • It's not about being the best. It's about being your best.
  • It can give them an change to explore and think about problemsthat they may not feel comfortable with
  • There will always be someone who is better than you, there will always be someone who is not.
  • If you end your days with the persitent feeling of "I do not feel like I got enough done", it could be an indicator that some significant diagnostics need to be performed
  • can create an environment where synergy, collaboration, and friendly competitiveness raise the level of all of the people on the team
  • Give your brain an opportunity to stretch itself.
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    Great article about strategies you may follow and mistakes you may avoid to become a better programmer!
Joel Bennett

XmlSerializable Sample Code Generator 1.4.2.1 - 0 views

  • The Sample Code Generator (XSDObjectGen) tool takes an XSD schema as input and generates sample code showing how to mark up C# and VB.Net classes so that when serialized with the XML serializer, the resulting XML will be valid according to the original schema.
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    Makes skeleton C# or VB classes that will serialize to match an XML Schema.
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