#Imagine you're writing a program to check if a person is

Two middle-order batsmen are compared based on their performance in their previous cricket match.

Zolol [24]

How many points is this for

5 0

2 years ago

Write a function string middle(string str) that returns a string containing the middle character in str if the length of str is

Katen [24]

Answer:

function getMiddle(s) {

return s.length % 2 ? s.substr(s.length / 2, 1) : s.substr((s.length / 2) - 1, 2);

}

// I/O stuff

document.getElementById("submit").addEventListener("click", function() {

input = document.getElementById("input").value;

document.getElementById("output").innerHTML = getMiddle(input);

});

Explanation:

// >>> is an unsigned right shift bitwise operator. It's equivalent to division by 2, with truncation, as long as the length of the string does not exceed the size of an integer in Javascript.

// About the ~ operator, let's rather start with the expression n & 1. This will tell you whether an integer n is odd (it's similar to a logical and, but comparing all of the bits of two numbers). The expression returns 1 if an integer is odd. It returns 0 if an integer is even.

// If n & 1 is even, the expression returns 0.

// If n & 1 is odd, the expression returns 1.

// ~n & 1 inverts those two results, providing 0 if the length of the string is odd, and 1 if the length of the sting is even. The ~ operator inverts all of the bits in an integer, so 0 would become -1, 1 would become -2, and so on (the leading bit is always the sign).

// Then you add one, and you get 0+1 (1) characters if the length of the string is odd, or 1+1 (2) characters if the length of the string is even.

6 0

1 year ago

Develop an EER model for the following situation using the traditional EER notation, the Visio notation, or the subtypes inside

podryga [215]

Answer:

Explanation:

To develop the model for Creating the supertype/subtype relationship three diffrent types of notation is given bellow accrdig to the diagram attached.

1.Traditional EER (Enhance Entity-Relational) notation

2.Microsoft Visio notation

3.Subtypes Inside supertype note

Traditional EER(Enhance Entity-Relational)notation for the international school of technology diagram is attached bellow

The diagram consist of the following entity

Room Supertype

Media Entity Type

COURSE entity type

Section weak entity type

Schedule associatiative entity type

Microsoft Visio Notation for the international school of technology is ashown in the diagram bellow.

The diagram consist of the following entity

Room Supertype

Media Entity Type

Computer entity type

Instructor entity type

Time slot entity type

Subtype Inside Supertype note Notation for the international school of technology is shown in the diagram bellow.

The diagram consist of the following entity

Room Supertype

Media Entity Type

Computer entity type

Instructor entity type

Time slot entity type

3 0

2 years ago

Explain why each of the following names does or does not seem like a good variable name to represent a state sales tax rate.

tatyana61 [14]

a. stateTaxRate - A good variable name because it represents what it holds, the state sales tax rate, without being too wordy. Also correctly capitalized in camelcase.

b. txRt - A bad variable name because while short and simple, it is too hard to understand what the variable represents.

c. t - A very bad variable name if you plan on using the variable often. Far too short and you will forget what it represents and is needed for.

d. stateSalesTaxRateValue - A bad variable name because it is just too wordy. Cutting it down to A's variable name is much more reasonable

e. state tax rate - A bad variable name and probably invalid because it has spaces in the name.

f. taxRate - A good variable name if there are no other tax calculations other than state tax rate. Otherwise you would confuse state vs local tax rate or something, making it a bad variable name.

g. 1TaxRate - A bad variable name because the number 1 has no reason being in the variable name. It doesn't add anything to the name.

h. moneyCharged - A bad variable name because it is not specific enough in explaining why the money is being charged and what for.

7 0

2 years ago

Assuming that the list newAnimals is initially empty, what would this list contain after the following code segment is run?

allochka39001 [22]

Answer:

b

Explanation:

4 0

2 years ago

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