numbers

问题 I use javascript and jquery. I want to make a masking template for <input type="text"> Which accept numbers only and auto masking format for every number keyup result. The masking format is : 99-99-99-99-[repeat format until last inputed number] Examples for valid input and result : Inputed : 001234567890 Result : 00-12-34-56-78-90- Inputed : 00[backspace]1234567890 Result : 01-23-45-67-89-0 Inputed : 00[backspace]1234567890 Result : 01-23-45-67-89-0 My current complete html working script

问题 I use javascript and jquery. I want to make a masking template for <input type="text"> Which accept numbers only and auto masking format for every number keyup result. The masking format is : 99-99-99-99-[repeat format until last inputed number] Examples for valid input and result : Inputed : 001234567890 Result : 00-12-34-56-78-90- Inputed : 00[backspace]1234567890 Result : 01-23-45-67-89-0 Inputed : 00[backspace]1234567890 Result : 01-23-45-67-89-0 My current complete html working script

问题 Today I've faced interesting problem of create test for pretty simple behavior: 'Most recent' sorting. All what test need to know: Every item have ID Previous ID is less then next in this case of sorting Approach : writing ID in to attribute of item, getting that id from first item with getAttribute() and either way for second. Problem : getAttribute() promise resulting with string value and Jasmine is not able to compare (from the box) string numbers. I would like to find elegant way to

问题 Ive got a highscore system for my game. and i want to be able to sort the numbers in acending order,ive got a way to sort the numbers public static int[] sort(int[] a){ Arrays.sort(a); return a; } but how do i make it so the scores stay with the name of the player that set it? for example me:10 you:50 You should be number 1 and me should be nubmer 2. how to i make it so that the string stays with the int when its sorted? thanks 回答1: Easiest is to create a class to hold the person's name and

问题 I look for a regular expression to support double number with just one fraction part which ranges between 0.1 to 999.9 It means following values are not allowed: 0 0.0 // less than lower bound 0.19 // fraction part is 2 digits, right '9' is extra 94.11 // fraction part is 2 digits, right '1' is extra 999.90 // fraction part is 2 digits, '0' is extra 9.0 // should be 9 or 9.1, 9.0 is wrong 1000 // is higher than upper bound allowed ones: 1.1 55.5 999.9 My regular expression is: (^(\.[1-9])?$|(

问题 I'm looking for the most succinct and general implementation of the following function: float Constrain(float value, float min, float max); Where Constrain() bounds value in the range [min, float) . Ie, the range includes min but excludes max and values greater than max or less than min wrap around in a circle. Ie, in a similar way to integers over/underflow. The function should pass the following tests: Constrain( 0.0, 0.0, 10.0) == 0.0 Constrain( 10.0, 0.0, 10.0) == 0.0 Constrain( 5.0, 0.0,

问题 I've successfully built a numbers to words converter for 1-199, for a foreign language that uses a vigesimal number system, counting in twenties. I'd now like to add 200-999. Here's what I have so far. HTML: <table align=center> <tr><td> <form action="#" name="conv"> Enter number: <input type="text" name="numb" size="15"> <input type="button" value="Show number" onclick="getnum(document.conv.numb.value)"> </form> </td></tr> <tr><td align=center><span id="outp"> </span></td></tr> </table>

问题 I'm making a number data shower, which show the data of a number, like even or odd. Now I stopped at irrational numbers, how can I test for is it that? Something like this: alert(isIrrational(Math.sqrt(9))); 回答1: It depends on the context, but you might want to say that floating point numbers that are very close to simple rational numbers should be identified as rational, and otherwise they should be identified as possible irrational numbers. You have to choose definitions for "very close"

问题 This problem is really confusing me; we're given two integers A , B , we want to count occurrences of digits in the range [A, B] . I though that if we could count the number of digit occurrences in the range [0, A] and [0, B] , then the rest is trivial. So how can I count digit occurrences in a range [0, x] ? This isn't homework, this is actually a problem from SPOJ. The naive approach won't work, as A and B can be as large as 10 ^ 9. Here are some examples: Input: 1 10 Output: 1 2 1 1 1 1 1

问题 what plugins do i need to install on eclipse so that .java files will show line number? how about show line number on .xml/.html as well? 回答1: There is also a simpler way: just right click on gutter (left border of your editor window in which your code resides) and enable them.. there is a specific option there. 回答2: Window Menu -> Preferences -> General -> Editors -> Text Editors -> check Show line numbers 回答3: Easy click on left bar (where line numbers will show) and clikc Show line numbers