detect

问题 $word = "Acrobat" (or Apple, Tea etc.) How can I detect and echo the last vowel of a given word with php? I tried preg_match function, google'd for hours but couldn't find a proper solution. There can be multibyte letters like ü, ö in the string. 回答1: Here's a multibyte safe version of catching the last vowel in a string. $arr = array( 'Apple','Tea','Strng','queue', 'asartä','nő','ağır','NOËL','gør','æsc' ); /* these are the ones I found in character viewer in Mac so these vowels can be

问题 $word = "Acrobat" (or Apple, Tea etc.) How can I detect and echo the last vowel of a given word with php? I tried preg_match function, google'd for hours but couldn't find a proper solution. There can be multibyte letters like ü, ö in the string. 回答1: Here's a multibyte safe version of catching the last vowel in a string. $arr = array( 'Apple','Tea','Strng','queue', 'asartä','nő','ağır','NOËL','gør','æsc' ); /* these are the ones I found in character viewer in Mac so these vowels can be

问题 i've been searching the web for more than hours and didn't find anything. I want to know how to get the color of the pixel where the mouse pointer currently is. I programmed a console application, so I have no window to overlay or something else. Just more detail: When I build&run the program ( cmd+r ), it should give me a console log of the color where my mouse pointer currently is. Is that possible? Thank you for your answers! Greetings, Daniel PS: I'm from germany, just saying (language

问题 i've been searching the web for more than hours and didn't find anything. I want to know how to get the color of the pixel where the mouse pointer currently is. I programmed a console application, so I have no window to overlay or something else. Just more detail: When I build&run the program ( cmd+r ), it should give me a console log of the color where my mouse pointer currently is. Is that possible? Thank you for your answers! Greetings, Daniel PS: I'm from germany, just saying (language

问题 I have a Java application which requires certain software (one of them being Perl) before it can be run. What I used to do to detect for Perl is: Runtime.getRuntime().exec("perl Test.pl"); and if there was an IOException declare that there was no Perl. However, one of my users complained that the app kept failing because he had not placed Perl in his path varible. So this is why I'm asking: Is there any cross-operating system way to detect whether Perl (or any other software) is installed on

问题 In PHP, i will write (create) the file using file_put_contents($filename, $data); It is ok, but i want to detect the finish event of process. Currently, the page is showing loading status. This is currently the way i can know it is finish or not. I want to detect with the code. 回答1: This is a blocking, I/O call, so it finishes when the function call returns. The return value is the number of bytes written (upon success). 回答2: It puts everything on hold until it's over So you could use

问题 Hi Stackoverflowers (I know, that doesn't sound like it should...) Well I think It's almost all in the question: I'd like to catch anything that causes the display of my Activity to get even partially hidden, e.g. power options, recent apps tray, low battery notification, etc... and I'm having a hard time to detect these system events. I was pretty sure onPause() would be called when such events happen, but it seems to be wrong... or is it me? Any other idea?... I'd preferably not hook on

问题 Ok i have tons of $http() calls all around the app code, i'm wondering is there any way / best practice to detect when all $http() around the app have finished ( success/error donesn't matter what they return, just need to know if finished )? So that i can show a loading gif until they are loading ? thanks 回答1: Do it like this: angular.module('app').factory('httpInterceptor', ['$q', '$rootScope', function ($q, $rootScope) { var loadingCount = 0; return { request: function (config) { if(+

问题 I found this gist to detect changes on specified fiels of a object : https://gist.github.com/3138469 But it bind an event only on one field. Someone know a function or a tricks to detect change on an entire Javascript Object ? 回答1: 2019 Update: These days this can be achieved using Proxy API in a much more efficient manner. The on-change library uses the Proxy API behind the scene to make this even easier. 2012 Update: I've just noticed that the author of Watch.js is referencing a library

问题 Any easy way to detect element if its over another element ? I'm using CSS3 transform to move a element. (because) Example : - All element size 10x10 pixels Element#A transform : translate(170px, 180px) <-- This element can controll for moving Element#B transform : translate(200px, 200px) How to detect is element#A over some element ? My full demo with jQuery element controller : http://jsfiddle.net/ndZj5/ var over = false; // do something with `over` to `true` to detect this... if(!over) {