大约有 62 项符合查询结果（耗时：0.0125秒） [XML]
How to add images in select list?
...d</option>
<option value='archived' style='color:red;'>&#xf023; &nbsp; Archived</option>
</select>
Note the font-family:Arial, FontAwesome; is required to be assigned in style for select like given in the example!
...
Count occurrences of a char in plain text file
...grep and wc for the same file:
real 0m0.522s
user 0m0.477s
sys 0m0.023s
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How do I efficiently iterate over each entry in a Java Map?
... 0.016 µs/op
test2_UsingForEachAndMapEntry avgt 10 0.391 ± 0.023 µs/op
test7_UsingJava8StreamApi avgt 10 0.510 ± 0.014 µs/op
test9_UsingApacheIterableMap avgt 10 0.524 ± 0.008 µs/op
test4_UsingKeySetAndForEach avgt 10 0.816 ± 0.026 µs/op
test...
How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
...):021:0* Benchmark.measure do
irb(main):022:1* 100_000.times {
irb(main):023:2* int_times.each do |i|
irb(main):024:3* Time.at(i).to_datetime
irb(main):025:3> end
irb(main):026:2> }
irb(main):027:1> end
=> #<Benchmark::Tms:0x00007fbdc3108be0 @label="", @real=0.330593...
Which characters need to be escaped when using Bash?
...2' 2C E \, 46 - F 60 E \` 7A - z
13 E $'\023' 2D - - 47 - G 61 - a 7B E \{
14 E $'\024' 2E - . 48 - H 62 - b 7C E \|
15 E $'\025' 2F - / 49 - I 63 - c 7D E \}
16...
What are the undocumented features and limitations of the Windows FINDSTR command?
... 247
021 046 170 197 222 248
022 047 173 198 223 249
023 058 174 199 224 250
024 059 175 200 226 251
025 060 176 201 227 254
026 061 177 202 228 255
027 062 178 203 229
Regex character class ranges [x-y]
Character class ranges d...
What does “use strict” do in JavaScript, and what is the reasoning behind it?
... must be unique (function sum (x, x) {...})
Forbids octal syntax (var x = 023; some devs assume wrongly that a preceding zero does nothing to change the number.)
Forbids the with keyword
eval in strict mode does not introduce new variables
Forbids deleting plain names (delete x;)
Forbids bindin...
Java HashMap performance optimization / alternative
...0,000 puts, 100,000 to 2,000,000 was:
168350.17
109409.195
81344.91
64319.023
53780.79
45931.258
39680.29
34972.676
31354.514
28343.062
25562.371
23850.695
22299.22
20998.006
19797.799
18702.951
17702.434
16832.182
16084.52
15353.083
Using the new method gives:
337837.84
337268.12
337078.66
3369...
std::vector performance regression when enabling C++11
... # 2.771 GHz ( +- 2.04% ) [78.91%]
58,023,151 stalled-cycles-frontend # 55.42% frontend cycles idle ( +- 4.03% ) [78.88%]
30,572,036 stalled-cycles-backend # 29.20% backend cycles idle ( +- 5.31% ) [71.40%]
140,669,773 instructi...
How to fix Git error: object file is empty?
...ce/mcmc-chapter$ git commit -a -m "adding in the example code"
[master 385c023] adding in the example code
1 file changed, 331 insertions(+)
create mode 100644 tex/sept2012_code/example-code-testing.R
So hopefully that can be of some use to people in the future. I'm glad it worked.
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