bluebook | facebook clone with full authentication features | Authentication library

A Float is a data structure that codifies a number, which regardless of how we see or interpret it, mathematically speaking, cannot be anything but a rational quantity (i.e., an integer or fraction). This codification is appropriate for arithmetic operations, which the CPU performs at high speed. The price we pay is that the codification doesn't exhibit the numerator and denominator it represents. The method Float >> #asTrueFraction answers with these numbers, in other words, it decodes the bits enclosed in the instance of Float, and answers with the actual fraction it codifies.

What you have to understand is that when you write 0.001 you are telling the Compiler to create a Float that approximates the fraction 1/1000. Had the CPU used decimal rather than binary representations, this would have been similar to asking it to codify 1/3 using a finite number of decimal places, which leads irrevocably to 0.33333..3, for some maximum number of digits 3. In the case where the denominator is not a power of 2, the CPU has to solve a similar problem and ends up approximating the provided quantity so that it fits in the number of bits allocated to Floats. The method #asTrueFraction reverses that process and reveals the exact value of the approximation, which Float hides behind the way it prints its instances.

In Pharo, Float >> #asFraction is the same as Float >> #asTrueFraction, so no difference there.

The comment in Float >> #asMinimalDecimalFraction is very clear, it will give what you usually expect, this is, the shortest decimal Fraction that will equal self when converted back asFloat.

Finally, Float >> #asApproximateFraction uses some algorithm to produce an acceptable approximation of the receiver.

It's a weird character in the program stream. My guess is you're using a Macintosh and it's for some reason your keyboard handler is replacing the hyphen with some ostensibly more proper dash character. This creates a malformed negative number which gets parsed as a name and ... voila ... there's no such name defined in the dict stack.

Some clues from the error message that can help solve similar problems are:

• the /undefined error is the result of a failure in dictionary lookup. This can happen with load, known, get or the automatic lookup of an executable name in the program stream.
• the operand stack dump shows a single 0 so it's got to be happening where there's a single 0 sitting on the stack.
• the � shows that GS encountered a character that it doesn't know what to do with.

The warning you're getting about page.current_path not available when attempting to screenshot is probably because your RSpec after hooks are installed in the wrong order (session is being reset before the screenshot call is made).

As for the failing test, it's really hard to tell exactly what you're doing but a number of things stand out as potential issues

1. I'm assuming the element ids are named #task_ If it's not and instead it's #task_ then you need to rethink how you're doing the test

2. tbody:nth-child(2) finds the tbody that is a second child, not the second child of the tbody element. I'm guessing you wanted tbody tr:nth-child(2) ...

3. There is no need to find the element before doing within since within will find the element (with retry/waiting)

4. The saving of the new order has to be committed before you call the second visit - hopefully your check for the element being in a different row does indicate the order has been saved.

Applying those 3 I end up with

Try this following:

I ran into the same issue, and it took me a while but I found a solution that works for me. I believe what happens, is that the debugger is looking for the module _pydevd_bundle.pydevd_cython in a directory code. However, because you are running the script out of your own code directory, the debugger checks your folder, sees their is no module, and throws the error. That would explain why deleting the __init__.py works, because the debugger won't confuse the two directories anymore.

So, renaming your code directory to something else, should fix the issue and let you keep the init file.

You may use GridLayout and set your desired columns and rows.

You may also use a FlowLayout https://github.com/ApmeM/android-flowlayout. If the row is filled, next view will go below the row.

Don't use absolute position for the main div. Use a relative and add margin to it: