numbers

Return highest and lowest number in a string of numbers with spaces

喜夏-厌秋 提交于 2019-11-30 19:58:37
问题 Let's say I have a string of numbers separated by spaces and I want to return the highest and lowest number. How could that best be done in JS using a function? Example: highestAndLowest("1 2 3 4 5"); // return "5 1" I would like the both numbers to be returned in a string. The lowest number first followed by a space then the highest number. Here is what I have so far: function myFunction(str) { var tst = str.split(" "); return tst.max(); } 回答1: You can use Math.min and Math.max, and use them

Concatenating numbers in virtual column expression throws ORA-12899: value too large for column

对着背影说爱祢 提交于 2019-11-30 19:25:20
While I gave this answer to a question yesterday, I suggested to use a VIRTUAL COLUMN for computed values instead of manually updating it. I did a test myself, and figured out an issue with the data size that the virtual column expression takes while concatenating two NUMBER type columns. Though, no issue while concatenating two characters. DB version : SQL> select banner from v$version where rownum = 1; BANNER -------------------------------------------------------------------------------- Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production SQL> Test case 1 :

Irrational number representation in any programming language?

会有一股神秘感。 提交于 2019-11-30 19:20:25
Does anyone know of an irrational number representation type/object/class/whatever in any programming language? All suggestions welcome. Simply put, if I have two irrational objects, both representing the square root of five, and I multiply those objects, I want to get back the integer five, not float 4 point lots o' 9s. Specifically, I need the representation to be able to collect terms, not just resolve every time to an integer/float. For instance, if I want to add the square root of five to one, I don't want it to return some approximation integer/float, I want it to return an object that I

js获取数组中最大最小值

狂风中的少年 提交于 2019-11-30 18:50:26
JS数组获取值:var numbers = [5, 458 , 120 , -215 , 228 , 400 , 122205, -85411]; var maxInNumbers = Math.max.apply(Math, numbers); var minInNumbers = Math.min.apply(Math, numbers);ES6写法:let minNum = Math.min(...numbers);console.log(minNum); 来源: https://www.cnblogs.com/agen-su/p/11635632.html

Output numbers with digit grouping (1000000 as 1,000,000 and so on)

。_饼干妹妹 提交于 2019-11-30 18:49:22
While it is easy to write something that does this by myself, I often wondered if there was something like this in iomanip or somewhere. However, I never found something useful. Ideally, it'd be sensitive to locales (e.g. in Germany you'd write 1,234,567.89 as 1.234.567,89) and hence highly superior to building the comma-string by hand. According to this thread , you can set a locale on your output stream by doing something like: #include <iostream> #include <locale> #include <string> struct my_facet : public std::numpunct<char> { explicit my_facet(size_t refs = 0) : std::numpunct<char>(refs)

Why parseFloat in javascript returns string type for me?

馋奶兔 提交于 2019-11-30 17:59:42
问题 I searched and only found this one related to my question, but not exactly the same, as I'm using toFixed rather than toPrecision. Why does toPrecision return a String? Here is my code var oldv = parseFloat(document.getElementById('total').textContent).toFixed(2); alert(typeof oldv); // returns string var testv = parseInt(document.getElementById('total').textContent); alert(typeof testv); // returns number I need further math steps, so string type messed up... Why? How to solve? TIA 回答1: As

why are arabic numbers (١٢٣) not accepted in textboxes as real numbers?

∥☆過路亽.° 提交于 2019-11-30 17:58:37
while developing one of my sites, i noticed that if I enter arabic numbers (١٢٣), they are not interpreted as real number values. Then, I tested a few other sites only to find that they also don't accept arabic numbers. The problem is, my client seems to require this functionality (accepting arabic numbers).. and I have no idea where to start. My platform is magento (php). To allow PHP to accept the Arabic numbers or Persian numbers (Farsi) (١٢٣٤٥), I developed this easy function: <?php /* ///////////////////// This function has been created by Abdulfattah alhazmi Roles: To convert Arabic

How to Limit Input to Numbers Only

[亡魂溺海] 提交于 2019-11-30 17:43:10
问题 I recently created a program that will create a math problem based on the user input. By entering either 1-4 the program can generate a problem or the user can quit by entering 5. The only problem I am having is that when I enter a character the program goes into an infinite loop. What function could I use to check if the input is not a number so I can display an error message? //CIS180 Assignment #4 #include <iostream> #include <iomanip> #include <cstdlib> #include <ctime> using namespace

Swift 2.0 Format 1000's into a friendly K's

纵饮孤独 提交于 2019-11-30 17:42:37
I'm trying to write a function to present thousands and millions into K's and M's For instance: 1000 = 1k 1100 = 1.1k 15000 = 15k 115000 = 115k 1000000 = 1m Here is where I got so far: func formatPoints(num: Int) -> String { let newNum = String(num / 1000) var newNumString = "\(num)" if num > 1000 && num < 1000000 { newNumString = "\(newNum)k" } else if num > 1000000 { newNumString = "\(newNum)m" } return newNumString } formatPoints(51100) // THIS RETURNS 51K instead of 51.1K How do I get this function to work, what am I missing? user3483203 func formatPoints(num: Double) ->String{ let

Why is '…' concatenating two numbers in my code?

妖精的绣舞 提交于 2019-11-30 17:42:12
I have the following code snippet where I don't really understand its output: echo 20...7; Why does this code output 200.7 ? From what I know ... is the splat operator, which it is called in ruby, that lets you have a function with a variable number of arguments, but I don't understand what it does here in the context with echo . Can anyone explain what exactly this code does? YvesLeBorg No this is not the splat/unpacking operator, even thought it might seem like it is. This is just the result of the PHP parsing process. Already writing your code a bit different might clear some confusion: