Quotes About Development

Intuitively, many people imagine that humankind's upward climb in economic sophistication was a slow, steady journey, a linear progression from stone tools to DVD players. The actual story, pieced together by archaeologists, anthropologists, historians, and economists, is not at all like that. It is far more dramatic.

In the old waterfall method, the business experts talk to the analysts, and analysts digest and abstract and pass the result along to the programmers, who code the software. This approach fails because it completely lacks feedback.

Knowledge trickles in one direction, but does not accumulate.

Written documents should complement the code and the talking.

crucial discoveries always emerge during the design/implementation effort.

Supple design has a profound effect on the ability of software to cope with change and complexity.

When we set out to write software, we never know enough.

Closures are often used to capture state for event handlers.

You can't send functions:

You can't insert new

JavaScript creates all local variables at the beginning of a function whether you declare them or not (this is called "hoisting" and we'll come back to it later), but the variables are all undefined until they are assigned a value, which might not be what you want.

So, we recommend specifying the width and height in the tag attributes, and not setting those properties in CSS unless you really mean to scale the canvas.

Yes, workers can access localStorage and make XMLHttpRequests.

Here's the short story: functions are objects in JavaScript. In

the constructor always has a prototype property. More

two forms of the Adapter Pattern: object and class adapters. Class adapters require multiple inheritance. You can implement more

when you assign a value to a variable name that hasn't been previously declared, it is treated as a new, global variable. So be careful, if you do this within a function you are creating a global variable. Note

When you link to multiple JavaScript files from your page, all the global variables are defined in the same global space.

A callback works like this: give a function to the object that knows about the event. When the event occurs, that object will call you back, or notify you, by calling that function. You're going to see this pattern in JavaScript for a variety of events.

As it turns out, one of the things the new operator does behind the scenes when the object is created is to store information that allows it to determine, at any time, the constructor that created the object. And

You see, now that we have a prototype, if we add any methods to that prototype, even after we've already created dog objects, all dogs inheriting from the prototype immediately and automatically get this new behavior.

If ministry success is our god, we are likely to take the shortest path to greater and greater "victories," but preparing and developing people is never on the shortest path.

The real "haves" are they who can acquire freedom, self-confidence, and even riches without depriving others of them. They acquire all of these by developing and applying their potentialities. On the other hand, the real "have notch" are they who cannot have aught except by depriving others of it. They can feel free only by diminishing the freedom of others, self-confident by spreading fear and dependence among others, and rich by making others poor

The real haves are they who can acquire freedom, self-confidence, and even riches without depriving others of them. They acquire all of these by developing and applying their potentialities. On the other hand, the real have nots are they who cannot have aught except by depriving others of it. They can feel free only by diminishing the freedom of others, self-confident by spreading fear and dependence among others, and rich by making others poor.