truncate

问题 I'm working on creating a truncate directive and I have the string of text truncating if the characters exceed 10. It will then display the "...". My Goal is to write a condition that removes the "..." if the characters are less than 10. Kind of stuck on this and open to suggestions if anyone has any ideas on how I could accomplish this. Here is my code: var app = angular.module('myApp', []); // Controller app.controller('mainCtrl', function($scope) { $scope.text = "John Doe Blah blah"; }); /

问题 I've got a relatively simple update statement: update sv_konginfo ki set AnzDarl = 1 where kong_nr in ( select kong_nr from sv_darlehen group by kong_nr having count (*) = 1); which runs okay on its own (about 1 second for about 150.000 records). However, if I truncate the table and then re-insert the records: truncate table sv_konginfo; insert into sv_konginfo (kong_nr) select distinct kong_nr from sv_darlehen; the update statement runs very slow (more than a minute) working on exactly the

问题 The trouble is if I use <% @description = (truncate(post.content, :separator => '[---MORE---]', :length => 0))%> and then I try to print it - <%= raw @description %> I still see all html tags. 回答1: truncate escapes the string by default, but you can turn it off using :escape option: @description = (truncate(post.content, :separator => '[---MORE---]', :length => 0, :escape => false)) Other approach would be to mark the post.content as html safe: truncate(post.content.html_safe, ... If you do

问题 The trouble is if I use <% @description = (truncate(post.content, :separator => '[---MORE---]', :length => 0))%> and then I try to print it - <%= raw @description %> I still see all html tags. 回答1: truncate escapes the string by default, but you can turn it off using :escape option: @description = (truncate(post.content, :separator => '[---MORE---]', :length => 0, :escape => false)) Other approach would be to mark the post.content as html safe: truncate(post.content.html_safe, ... If you do

问题 How do you configure a TextView to truncate in the middle of a word? So if I have text="Some Text" I want it to show as "Some Te" assuming the width supports that. What instead I'm seeing is "Some"; its truncating the entire word "Text" even though there is plenty of space for a couple more characters. 回答1: Here is what worked for me: <TextView android:layout_width="80px" android:layout_height="wrap_content" android:text="Some text" android:background="#88ff0000" android:singleLine="true"

问题 I'm looking for a way to truncate a float into an int in a fast and portable (IEEE 754) way. The reason is because in this function 50% of the time is spent in the cast: float fm_sinf(float x) { const float a = 0.00735246819687011731341356165096815f; const float b = -0.16528911397014738207016302002888890f; const float c = 0.99969198629596757779830113868360584f; float r, x2; int k; /* bring x in range */ k = (int) (F_1_PI * x + copysignf(0.5f, x)); /* <-- 50% of time is spent in cast */ x -= k

问题 Okay, I've been spending all day trying to figure out the right approach for this, but have come out short, so maybe someone here can point me in the right direction. Problem: I have a div with class "article-content". There will be around 2-10 of these on the page. Each of them will contain output from a wysiwyg. i.e. texts wrapped in p-tags, some strong tags, em tags and even img tags. I need to create a preview/excerpt version of these that wont show the images and will append a [...] to

问题 I was wondering which are the benefits of using truncation towards minus infinity (Haskell, Ruby) instead of truncation towards zero (C, PHP), from the perspective of programming languages/compilers implementation. It seems that truncating towards minus infinity is the right way to go, but I haven’t found a reliable source for such claiming, nor how such decision impact the implementation of compilers. I’m particularly interested in possible compilers optimizations, but not exclusively.

问题 Suppose a long-running process writes to a log file. Suppose that log file is kept open indefinitely. Suppose that a careless system administrator deletes that log file. Can the program detect that this has happened? Is it safe to assume that fstat() will report a link count of zero for a deleted file? Truncation, it seems to me, is slightly trickier. In part, it depends on whether the file descriptor is running in O_APPEND mode. If the log file is not running with O_APPEND , then the current

问题 I want to: open a file in read-write mode if it exists; create it if it doesn't exist; be able to truncate it anytime-anywhere. EDIT : with truncate I mean write until a position and discard the remaining part of the file, if present All this atomically (with a single open() call or simulating a single open() call) No single open modality seems to apply: r : obviously doesn't work; r+ : fails if the file doesn't exist; w: recreate the file if it exists; w+: recreate the file if it exists; a: