position

How can I find the index of the second greatest element in my array?

由 ╄→гoц情女王★ 提交于 2019-12-12 02:17:10
问题 I'm using Ruby 2.4 and I have an array of numbers: [23423, 349843, 13123, 29239, 20201, ...] How can I find the array index corresponding to the second greatest value in the array? You can assume that there are at least two elements in the array. 回答1: Try this one. a is your array a.index(a.max(2).last) 回答2: a = [1,3,1,2] When 1 and 1 are regarded as the two smallest values of a def second_largest_not_uniq(a) a.each_index.min_by(2) { |i| a[i] }[1] end second_largest_not_uniq [1,3,1,2] #=> 2

CSS table height of rows not even

由 旧时模样 提交于 2019-12-12 02:16:16
问题 I am trying to create a 4x4 array of content using css tables. The cells should be evenly sized. I got a fix to a problem with the cells going out of the parent div. However that broke the height of the cells. What is wrong here? All the rows should be 25% of the container, with the cells inheriting that. What seems to happen is the first row grows as much as it can, and the 3 remaining ones scale according to the content... Why? <html xmlns="http://www.w3.org/1999/xhtml"> <head> <style type=

Creating a draggable image view

由 泪湿孤枕 提交于 2019-12-12 01:28:48
问题 I have been searching the net for a long time and I have not found a concrete way of making an image view draggable. Here is what I have so far: tempViewController.h #import <UIKit/UIKit.h> #import "MyRect.h" @class UIView; @interface tempViewController : UIViewController @property (nonatomic, strong) MyRect *rect1; @end tempViewController.m #import "tempViewController.h" @interface tempViewController () @end @implementation tempViewController @synthesize rect1 = _rect1; - (void)viewDidLoad {

Center header element with position fixed to top of page [duplicate]

由 ♀尐吖头ヾ 提交于 2019-12-12 01:10:06
问题 This question already has answers here : Center a position:fixed element (14 answers) Closed 6 years ago . I have an CSS issue specific to Google Chrome. I've done some research but nobody knows how to fix it without Javascript, which I do not want to use because my element will change in the future. The code is below, if you use it you will see the that the child div goes to the right hand side of the page and if I add the same top an position values to the parents it moves in the opposite

Fixing div with absolute positioning being placed under image

由 爱⌒轻易说出口 提交于 2019-12-12 01:10:04
问题 I have an image and also a small container that I want to be placed on the container, but it sets this ".innerimage" below the image. Do not suggest using top: xx; because in my actual project I have many divs with the same class and I can't use top or it will screw it up. <div id="page"> <div class="image"> <img src="http://upload.wikimedia.org/wikipedia/commons/8/85/Black_300.jpg"> <div class="innerimage"></div> </div> </div> 回答1: If I well understand your need and if you don't have to

How do I position a div 'x' pixels from the center of a page?

由 守給你的承諾、 提交于 2019-12-12 00:55:41
问题 I want to position a <div> a given number of pixels relative to the center of a page. How can this be done? 回答1: You can use $(window).width() / 2 to get the horizontal center... like: $('.myDiv').css({left: ($(window).width() / 2) - 50}) You'll get the div 50px left of the center 来源： https://stackoverflow.com/questions/11905699/how-do-i-position-a-div-x-pixels-from-the-center-of-a-page

position:fixed - and others elements

由 我的梦境 提交于 2019-12-11 23:37:51
问题 <div id="home"> <div id="fix">aaa</div> <div id="text">bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb bbb

Calculate div's position within a div

由 馋奶兔 提交于 2019-12-11 21:06:18
问题 Good day, I need some help in JS please. Say I have this HTML: <div> <div onclick="countPos()"></div> <div onclick="countPos()"></div> <div onclick="countPos()"></div> </div> When I click on a div (inside the parent's div), I want a JS function to fire off, which will return the position of that div. So, if I click the third div - return 3, if I click the first div - return 1 and so on. How can I do that please? 回答1: You need to send the current clicked element to the function like <div

mouse position count

由 微笑、不失礼 提交于 2019-12-11 19:55:38
问题 Hi I'm using Jquery's mouse position to find the position of the page. I would like it to have it behave more like latitude and longitude coordinates. $().mousemove(function(e){ $('#detect').html( e.pageX + '° N, '+ e.pageY + '° E' ); }); I realise this is not true latitude and longitude coordinates. The box would be the webpage, and 0 is absolute middle of the webpage. Moving the mouse into the N/E area would produce this result. Any help would be appreciated. Thanks. 回答1: Javascript: var

How to position components to the location of a mouse click in react?

由 ε祈祈猫儿з 提交于 2019-12-11 19:51:46
问题 My aim is to write code for the functionality where when I click at a particular location within the box on the screen, a spinner should show up at the location of the click. I have Toast component (from react strap) within a div to which I have added an onClick attribute that calls markoff function on clicking. WHat markoff does is, it increases the no. of marks and adds the position of the x and y coords of the click to the state. I finally render an array of Spinner components which have
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