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How to convert an Int to a String of a given length with leading zeros to align?
How can I convert an Int to a 7-character long String , so that 123 is turned into "0000123" ?
7 Answers
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How to get “wc -l” to print just the number of lines without file name?
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In AIX,ksh, this will always have a space preceeding the number. We have to use | awk '{print $1}' or a cut, to trim off the spaces. Another way to trim would be to enclose with an echo.
– rao
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Elements order in a “for (… in …)” loop
...[i,obj[i]].join(':'));
console.log(arr);
}
var obj = { a:1, b:2, c:3, "123":'xyz' };
/* log1 */ lineate(obj);
obj.a = 4;
/* log2 */ lineate(obj);
delete obj.a;
obj.a = 4;
/* log3 */ lineate(obj);
gist or test in current browser
Safari 5, Firefox 14
["a:1", "b:2", "c:3", "123:xyz"]
["a:4",...
IRXmitter红外发射器扩展 · App Inventor 2 中文网
...装
最新版扩展: de.ullisroboterseite.ursai2irxmitter.aix
示例应用: MetzIRControl.aia
开发动机
我的电视遥控器总是藏得很隐蔽，但是要找到我的智能手机就容易多了。如果需要，我可以呼叫它，它会发出声...
Calculating frames per second in a game
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I think it's the simplest and preferred way. You just to keep track of
cn: counter of how many frames you've rendered
time_start: the time since you've started counting
time_now: the current time
Calculating the fps in this case is as simple as evaluating this formula:
FPS = cn / (time_now -...
How to remove certain characters from a string in C++?
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// output: 555 5555555
cout << str << endl;
To use as function:
void removeCharsFromString( string &str, char* charsToRemove ) {
for ( unsigned int i = 0; i < strlen(charsToRemove); ++i ) {
str.erase( remove(str.begin(), str.end(), charsToRemove[i]), str.end() )...
pdf2htmlEX实现pdf转html - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...nction(){_.schedule_render();});
修改之后的Pdf2htmlEXUtil
package cn.com.oims.util;
import cn.com.oims.config.BaseConfig;
/**@author liuzhengyong
* @version 1.0 时间：2013-12-30 下午2:24:10
* pdf文件转html工具类
*/
public class Pdf2htmlEXUtil {
<span style="white-s...
Fastest way to check if a string matches a regexp in ruby?
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This is a simple benchmark:
require 'benchmark'
"test123" =~ /1/
=> 4
Benchmark.measure{ 1000000.times { "test123" =~ /1/ } }
=> 0.610000 0.000000 0.610000 ( 0.578133)
"test123"[/1/]
=> "1"
Benchmark.measure{ 1000000.times { "test123"[/1/] } }
=> 0.718000 ...
Programmatically set left drawable in a TextView
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Using Kotlin:
You can create an extension function or just use setCompoundDrawablesWithIntrinsicBounds directly.
fun TextView.leftDrawable(@DrawableRes id: Int = 0) {
this.setCompoundDrawablesWithIntrinsicBounds(id, 0, 0, 0)
}
If you need to resize the drawable...
How to mkdir only if a directory does not already exist?
I am writing a shell script to run under the KornShell (ksh) on AIX. I would like to use the mkdir command to create a directory. But the directory may already exist, in which case I do not want to do anything. So I want to either test to see that the directory does not exist, or suppress the "Fil...