大约有 13,916 项符合查询结果（耗时：0.0724秒） [XML]
Get the value of checked checkbox?
...odern browsers:
var checkedValue = document.querySelector('.messageCheckbox:checked').value;
By using jQuery:
var checkedValue = $('.messageCheckbox:checked').val();
Pure javascript without jQuery:
var checkedValue = null;
var inputElements = document.getElementsByClassName('messageCheckbox'...
Getting image dimensions without reading the entire file
... Func<BinaryReader, Size>>()
{
{ new byte[]{ 0x42, 0x4D }, DecodeBitmap},
{ new byte[]{ 0x47, 0x49, 0x46, 0x38, 0x37, 0x61 }, DecodeGif },
{ new byte[]{ 0x47, 0x49, 0x46, 0x38, 0x39, 0x61 }, DecodeGif },
{ new byte[]{ 0x89, 0x50, 0x4E,...
How to sort a list in Scala by two fields?
how to sort a list in Scala by two fields, in this example I will sort by lastName and firstName?
4 Answers
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UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte
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The same issue appears for me when executing an sqlalchemy query, how would I encode the query (has no .encode, since its not a string)?
– c8999c 3f964f64
Jul 3 at 9:27
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Split list into smaller lists (split in half)
... edited Sep 16 '18 at 23:31
maxymoo
27.4k77 gold badges6969 silver badges9696 bronze badges
answered Apr 15 '09 at 15:49
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How to run a program without an operating system?
... questions
http://wiki.osdev.org/Introduction
Also, if you don't want to experiment directly on hardware, you can run it as a virtual machine using hypervisors like qemu. See how to run "hello world" directly on virtualized ARM hardware here.
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How to copy a directory using Ant
...e difference is not so subtle when you can't load your resources with the expected pathnames.
– Jim Pivarski
Jul 10 '13 at 18:48
1
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Failed to build gem native extension (installing Compass)
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This fixes the error on Ubuntu, but it seems OP is using OSX.
– mhnagaoka
Oct 8 '14 at 5:33
1
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Print an integer in binary format in Java
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Assuming you mean "built-in":
int x = 100;
System.out.println(Integer.toBinaryString(x));
See Integer documentation.
(Long has a similar method, BigInteger has an instance method where you can specify the radix.)
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Find value in an array
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I'm guessing that you're trying to find if a certain value exists inside the array, and if that's the case, you can use Array#include?(value):
a = [1,2,3,4,5]
a.include?(3) # => true
a.include?(9) # => false
If you mean something else, check the Ruby Array API
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