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优惠券批量生成及导入的思路 - 闲聊区 - 清泛IT论坛，有思想、有深度
... mt_rand(0, PHP_INT_MAX);
$m = base_convert($m, 10, 36); // 主随机
$n = base_convert($n, 10, 36); // 辅随机
$r = substr($m . $n, 0, 16);
} whi...
自定义下载器扩展：个性化下载进度展示 - App Inventor 2 拓展 - 清泛IT社...
...et the current download ID.
Cancel all ongoing downloads.
This block converts the bytes into KB and MB automatically, You can use own calculation for converting bytes into big units.
Get the downloaded size for a specific download ID.
These blocks pause/resume/cancel the download for giv...
Reset select2 value and show placeholder
How do I set the placeholder on value reset by select2. In my example If locations or grade select boxes are clicked and my select2 has a value than the value of select2 should reset and show the default placeholder. This script is resetting the value but won't show the placeholder
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Timer function to provide time in nano seconds using C++
...e for the clock period. This constant only comes into play if you want to convert the number of clock ticks into some real-time unit such as nanoseconds. And in that case, the more accurate you are able to supply the clock speed, the more accurate will be the conversion to nanoseconds, (millisecon...
What do numbers using 0x notation mean?
...omplement- a clever way that does not require '-' sign. So, it's basically converting from binary to hex, negative or positive.
– Shuvo Sarker
Mar 6 at 21:05
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Is it possible to use the SELECT INTO clause with UNION [ALL]?
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This works in SQL Server:
SELECT * INTO tmpFerdeen FROM (
SELECT top 100 *
FROM Customers
UNION All
SELECT top 100 *
FROM CustomerEurope
UNION All
SELECT top 100 *
FROM CustomerAsia
UNION All
SELECT top 100 *
FROM CustomerAme...
How do you select a particular option in a SELECT element in jQuery?
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A selector to get the middle option-element by value is
$('.selDiv option[value="SEL1"]')
For an index:
$('.selDiv option:eq(1)')
For a known text:
$('.selDiv option:contains("Selection 1")')
EDIT: As commented above t...
best practice to generate random token for forgot password
...eference. I prefer to do all crypto operations on raw binary and only ever convert to hex/base64 for transmission or storage.
– Scott Arciszewski
Dec 18 '15 at 18:56
...
“query function not defined for Select2 undefined error”
Trying to use Select2 and getting this error on multiple item input/text field:
13 Answers
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WPF TemplateBinding vs RelativeSource TemplatedParent
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One more thing - TemplateBindings don't allow value converting. They don't allow you to pass a Converter and don't automatically convert int to string for example (which is normal for a Binding).
share...