大约有 7,700 项符合查询结果（耗时：0.0282秒） [XML]
How to remove all whitespace from a string?
...ab, newline,
# carriage return, vertical tab, form feed
x <- c(
" x y ", # spaces before, after and in between
" \u2190 \u2192 ", # contains unicode chars
paste0( # varied whitespace
whitespace,
"x",
whitespace,
"y", ...
List of ANSI color escape sequences
...looking for are the Select Graphic Rendition subset. All of these have the form
\033[XXXm
where XXX is a series of semicolon-separated parameters.
To say, make text red, bold, and underlined (we'll discuss many other options below) in C you might write:
printf("\033[31;1;4mHello\033[0m");
In C++ y...
Unsafe JavaScript attempt to access frame with URL
...page on myevilserver.com that looks just like your site, including a login form that POSTs back to myevilserver.com 2. I send out a fake newsletter to your users with a link to https:// yoursite.com/remoteInclude.php?url=myevilserver.com 3. They see a login form on your site that I capture on my s...
How do you use the ? : (conditional) operator in JavaScript?
...ed Aug 8 '19 at 12:57
CertainPerformance
203k2323 gold badges137137 silver badges158158 bronze badges
answered Jun 7 '11 at 2:13
...
How to change the pop-up position of the jQuery DatePicker control
...ker").datepicker({
changeMonth: true,
changeYear: true,
dateFormat: 'mm/dd/yy',
beforeShow: function (input, inst) {
var rect = input.getBoundingClientRect();
setTimeout(function () {
inst.dpDiv.css({ top: rect.top + 40, left: rect.left + 0 });
...
Finding a branch point with Git?
...wn when comparing identical branches, and coming up with an alternate diff form which removes the sed form from the mix, and makes this "safer" (i.e. it returns a result (namely, the most recent commit) even when you compare master to master):
As a .git-config line:
[alias]
oldest-ancestor = !...
Difference between “or” and || in Ruby? [duplicate]
...e Rails core developers, for example, reject patches which use the keyword forms instead of the operator forms.)
The reason why they exist at all, is not for boolean formulae but for control flow. They made their way into Ruby via Perl's well-known do_this or do_that idiom, where do_this returns fa...
Why doesn't JUnit provide assertNotEquals methods?
...read it the question was not about historical interest, but about a way to formulate the assertion "these two objects are not equal" in a JUnit test. I answered that. Considering the "why is/was there no assertNotEqual" I'd say that's because it's a specialized assert that's not needed as often as a...
Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
...ignment Operators. An extract:
A compound assignment expression of the form E1 op= E2 is equivalent to E1 = (T)((E1) op (E2)), where T is the type of E1, except that E1 is evaluated only once.
An example cited from §15.26.2
[...] the following code is correct:
short x = 3;
x += 4.6...
How can you list the matches of Vim's search?
... -r<CR>:copen 33<CR>
" omit a dir from all searches to perform globally
set wildignore+=**/node_modules/**
" use perl regexes - src: http://andrewradev.com/2011/05/08/vim-regexes/
noremap / /\v
"
" STOP search related configs and helps
...