range

(Ruby) How do you check whether a range contains a subset of another range?

自作多情 提交于 2019-12-03 01:55:59
If I have two ranges that overlap: x = 1..10 y = 5..15 When I say: puts x.include? y the output is: false because the two ranges only overlap partially. But if I want it to be "true" when there is partial overlap between two ranges, how would I write that? In other words I need a way to know when one range contains a subset of another range. I assume there's an elegant way to write this in Ruby but the only solutions I can think of are verbose. Be careful using this with large ranges but this is an elegant way to do it: (x.to_a & y.to_a).empty? The efficient way is to compare the limits (x

Mobile Safari makes multiple video requests

帅比萌擦擦* 提交于 2019-12-03 01:51:36
I am designing a web application for iPad which makes use of HTML5 in mobile safari. I am transmitting the file manually through an ASP.NET .ashx file hosted on IIS 7 running .NET Framework v2.0. The essential code looks partly like this: // If we receive range header only transmit partial file if (context.Request.Headers["Range"] != null) { var fi = new FileInfo(filePath); long fileSize = fi.Length; // Read start/end index string headerRange = context.Request.Headers["Range"].Replace("bytes=", ""); string[] range = headerRange.Split('-'); int startIndex = Convert.ToInt32(range[0]); int

JQuery Range Input Listener

与世无争的帅哥 提交于 2019-12-03 01:18:45
Hey having a little trouble jquery and the hmtl5 range. I'm try to get the values as they changed but the event listener is not capturing it. Currently my code is: HTML html += '<li>Apply Credits: <input type="range" min="0" max="'+credits+'" name="discount_credits" id="discount_credits" /> <span>'+credits+'</span></li>' And the JS is: $('#discount_credits').mousewheel( function() { alert('it changed!'); alert('new value = ' + $(this).val()); }); I've also tried $('#discount_credits').change( function() { alert('it changed!'); alert('new value = ' + $(this).val()); }); Neither seem to work. Am

How to produce a range with step n in bash? (generate a sequence of numbers with increments)

Deadly 提交于 2019-12-03 01:07:54
问题 The way to iterate over a range in bash is for i in {0..10}; do echo $i; done What would be the syntax for iterating over the sequence with a step? Say, I would like to get only even number in the above example. 回答1: I'd do for i in `seq 0 2 10`; do echo $i; done (though of course seq 0 2 10 will produce the same output on its own). Note that seq allows floating-point numbers (e.g., seq .5 .25 3.5 ) but bash's brace expansion only allows integers. 回答2: Bash 4 's brace expansion has a step

Sum of all integers between two integers [closed]

99封情书 提交于 2019-12-02 23:54:55
问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 6 years ago . I am using Python and I want to find the sum of the integers between 2 numbers: number1 = 2 number2 = 6 ans = (?) print ans #the numbers in between are 3,4,5 Please give me either the mathematical formula or the

how to array key start from 1 instead of 0?

[亡魂溺海] 提交于 2019-12-02 23:13:29
问题 How do I start the array of a range at 1 instead of 0, Code looks like this: $numbers = range(0, 14); I tried this but that does not solve my problem $numbers = range(0, 14); 回答1: You can also go for : $numbers = range(0, 14); array_unshift($numbers,""); unset($numbers[0]); 回答2: You could try this: $numbers = array_combine(range(1,14), range(1,14)); 回答3: Try this code These will help you $data = array_slice(range(0,12), 1, null, true); 来源: https://stackoverflow.com/questions/33434201/how-to

Even numbers in Python

て烟熏妆下的殇ゞ 提交于 2019-12-02 22:40:24
Does anyone know if Python has an in-built function to work to print out even values. Like range() for example. Thanks SLaks Range has three parameters. You can write range(0, 10, 2) . Just use a step of 2: range(start, end, step) Try: range( 0, 10, 2 ) I don't know if this is what you want to hear, but it's pretty trivial to filter out odd values with list comprehension. evens = [x for x in range(100) if x%2 == 0] or evens = [x for x in range(100) if x&1 == 0] You could also use the optional step size parameter for range to count up by 2. >>> if 100 % 2 == 0 : print "even" ... even There are

How can I randomly iterate through a large Range?

只愿长相守 提交于 2019-12-02 21:06:26
I would like to randomly iterate through a range. Each value will be visited only once and all values will eventually be visited. For example: class Array def shuffle ret = dup j = length i = 0 while j > 1 r = i + rand(j) ret[i], ret[r] = ret[r], ret[i] i += 1 j -= 1 end ret end end (0..9).to_a.shuffle.each{|x| f(x)} where f(x) is some function that operates on each value. A Fisher-Yates shuffle is used to efficiently provide random ordering. My problem is that shuffle needs to operate on an array, which is not cool because I am working with astronomically large numbers. Ruby will quickly

Run-time error '1004' : Method 'Range' of object'_Global' failed; SIMPLE COPY AND PASTE

别等时光非礼了梦想. 提交于 2019-12-02 21:01:24
问题 I'm just trying to do a simple cut and paste to shift ranges in F:G to an unoccupied cell in D but I keep getting that error message. My codes are in the Modules and I don't know what I'm doing wrong! Completely new to VBA. Highlighted portion: Range("F" & RowNum & ":G" & RowNum).Select Sub MoveCells(RowNum as Integer) Range(“F” & RowNum & ":G" & RowNum).Select Selection.Cut Range(“D” & RowNum).Select ActiveSheet.Paste End Sub 回答1: Range(“F” & RowNum & ":G" & RowNum).Select ^ ^ ^ ^ | | | |

Determine if a number falls within a specified set of ranges

感情迁移 提交于 2019-12-02 20:37:42
I'm looking for a fluent way of determining if a number falls within a specified set of ranges. My current code looks something like this: int x = 500; // Could be any number if ( ( x > 4199 && x < 6800 ) || ( x > 6999 && x < 8200 ) || ( x > 9999 && x < 10100 ) || ( x > 10999 && x < 11100 ) || ( x > 11999 && x < 12100 ) ) { // More awesome code } Is there a better way of doing this? Anton Gogolev Extension methods? bool Between(this int value, int left, int right) { return value > left && value < right; } if(x.Between(4199, 6800) || x.Between(6999, 8200) || ...) You can also do this awful hack