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Do not understand what "#" key means with Haml in Rails


Do not understand what "#" key means with Haml in Rails

By : Eric Loflin
Date : November 16 2020, 06:23 AM
seems to work fine # is for setting the id of an element if it is part of an element, possibly an implicit div.
In plain text (i.e. not in an element definition) the #{...} syntax does interpolation. The contents are evaluated as Ruby, and the result is inserted into the output at this point. In this case, if @email had the value matt@example.com the result would be:
code :
Welcome matt@example.com!


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Midpoint sums Prob. 22" - I don't get the right answer because I don't understand what means "xxxxx.x" I

Midpoint sums Prob. 22" - I don't get the right answer because I don't understand what means "xxxxx.x" I


By : Vcky
Date : March 29 2020, 07:55 AM
Does that help They want the result in the form "xxxxx.x", meaning 5 digits before the dot and one after. Your answer is incorrect because it is an integer, while they want a floating point number.
What does "implicit meaning" means in terms of database design and what should I understand under "DBMS&q

What does "implicit meaning" means in terms of database design and what should I understand under "DBMS&q


By : babloo babloobhardwa
Date : March 29 2020, 07:55 AM
Hope that helps I have picked up the book named "Fundamentals of Database Systems, 3rd Edition" by Elmasri and Navathe to get a basic understanding first. I have started reading it from the first chapter. ,
What does "implicit meaning" mean here
I don't really understand What does "nearest larger" means (Ruby)

I don't really understand What does "nearest larger" means (Ruby)


By : Alex
Date : March 29 2020, 07:55 AM
may help you . The parameters for the method nearest_input are:
an array, an index to that array.
Can you help me to understand what "significant digits" means in floating point math?

Can you help me to understand what "significant digits" means in floating point math?


By : Nisha Rana
Date : March 29 2020, 07:55 AM
may help you .
Can you help me to understand what “significant digits” means in floating point math?
code :
123.         // 3 significant decimal digits
123.125      // 6 significant decimal digits
0.0078125    // 5 significant decimal digits
0x0.00123p45 // 3 significant hexadecimal digits
123000.0     // 3, 6, or 7 significant decimal digits depending on context
// Example 0.1 is not an exact sum of powers of 2 so a nearby value is used.
double x = 0.1;
// x takes on the exact value of 
// 0.1000000000000000055511151231257827021181583404541015625
// aka 0x1.999999999999ap-4
// aka base2: 0.000110011001100110011001100110011001100110011001100110011010
// The preceding and subsequent doubles
// 0.09999999999999999167332731531132594682276248931884765625
// 0.10000000000000001942890293094023945741355419158935546875
//   123456789012345678901234567890123456789012345678901234567890
don't understand what "public virtual object this" means

don't understand what "public virtual object this" means


By : user2213337
Date : March 29 2020, 07:55 AM
help you fix your problem that is overloading the index operator. it is used primarily on 'collection' types, like a string, array, or list. you may be familiar with it used this way:
code :
var items = new int[] { 1, 2, 3 };
var item = items[1];
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