大约有 7,000 项符合查询结果（耗时：0.0138秒） [XML]
How to tell if a string contains a certain character in JavaScript?
...
With ES6 MDN docs .includes()
"FooBar".includes("oo"); // true
"FooBar".includes("foo"); // false
"FooBar".includes("oo", 2); // false
E: Not suported by IE - instead you can use the Tilde opperator ~ (Bitwise NOT) with .indexOf()
~"FooBar".indexOf("oo...
Why does @foo.setter in Python not work for me?
So, I'm playing with decorators in Python 2.6, and I'm having some trouble getting them to work. Here is my class file:
4 A...
Installation error: INSTALL_PARSE_FAILED_MANIFEST_MALFORMED?
... file.
To isolate the error, look in logcat (when you do the 'adb install foo.apk' command). In the problem I encountered, logcat contained:
W/ActivityManager( 360): No content provider found for permission revoke: file:///data/local/tmp/foo.apk
D/Finsky (32707): [1] PackageVerificationReceiver...
Python: Best way to add to sys.path relative to the current running script
...─ bar
│ ├── __init__.py
│ └── mod.py
└── foo
├── __init__.py
└── main.py
$ cat foo/main.py
from bar.mod import print1
print1()
$ cat bar/mod.py
def print1():
print('In bar/mod.py')
$ python foo/main.py # This gives an error
Traceback (most ...
How to convert JSON string to array
..._decode, it will fail. Valid JSON strings have quoted keys:
json_decode('{foo:"bar"}'); // this fails
json_decode('{"foo":"bar"}', true); // returns array("foo" => "bar")
json_decode('{"foo":"bar"}'); // returns an object, not an array.
...
Where to put include statements, header or source?
...l method is to put "include guards" in header files, such as this for file foo.h:
#ifndef INCLUDE_FOO_H
#define INCLUDE_FOO_H
/* everything in header goes here */
#endif
share
|
improve this answe...
Import text file as single character string
... that uses the correct size instead of a hard-coded size:
fileName <- 'foo.txt'
readChar(fileName, file.info(fileName)$size)
Note that readChar allocates space for the number of bytes you specify, so readChar(fileName, .Machine$integer.max) does not work well...
...
jQuery - select all text from a textarea
...om working.
jsFiddle: http://jsfiddle.net/NM62A/
Code:
<textarea id="foo">Some text</textarea>
<script type="text/javascript">
var textBox = document.getElementById("foo");
textBox.onfocus = function() {
textBox.select();
// Work around Chrome's little ...
How do I find the location of the executable in C? [duplicate]
...links means that you can have the following situation:
-- assume /app/bin/foo is the actual program
$ mkdir /some/where/else
$ ln /app/bin/foo /some/where/else/foo # create a hard link to foo
$ /some/where/else/foo
Now, the approach above (including, I suspect, /proc/$pid/exe) will give /some...
How to profile a bash shell script slow startup?
... $EPOCHREALTIME\011 '
As pointed out by @pawamoy, you can use BASH_XTRACEFD to send the output of the trace to a separate file descriptor if you have Bash 4.1 or later. From this answer:
#!/bin/bash
exec 5> command.txt
BASH_XTRACEFD="5"
echo -n "hello "
set -x
echo -n world
set +x
echo "!"...