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Better way to check variable for null or empty string?
Since PHP is a dynamic language what's the best way of checking to see if a provided field is empty?
10 Answers
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Get a random item from a JavaScript array [duplicate]
...tion if you want: npmjs.com/package/lodash.sample
– XåpplI'-I0llwlg'I -
Dec 4 '15 at 11:32
4
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CALayer with transparent hole in it
...ath *circlePath = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0, 0, 2.0*radius, 2.0*radius) cornerRadius:radius];
[path appendPath:circlePath];
[path setUsesEvenOddFillRule:YES];
CAShapeLayer *fillLayer = [CAShapeLayer layer];
fillLayer.path = path.CGPath;
fillLayer.fillRule = kCAFillRuleEve...
Windows batch file file download from a URL
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With PowerShell 2.0 (Windows 7 preinstalled) you can use:
(New-Object Net.WebClient).DownloadFile('http://www.example.com/package.zip', 'package.zip')
Starting with PowerShell 3.0 (Windows 8 preinstalled) you can use Invoke-WebRequest:
I...
Override back button to act like home button
...apture the Back button press and call moveTaskToBack(true) as follows:
// 2.0 and above
@Override
public void onBackPressed() {
moveTaskToBack(true);
}
// Before 2.0
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
moveTaskTo...
比尔盖茨“未来生活预言”的科技豪宅（图） - 资讯 - 清泛网 - 专注C/C++及内核技术
...，他家就指引着数字生活的航向。
豪宅名叫“世外桃源2.0”，位于美国西雅图的华盛顿湖畔，从市区开车只需25分钟。“世外桃源2.0”这个名字来源于《CitizenKane》里 CharlesFosterKane虚构的房屋。
盖茨把岸边小山挖去一半，前临...
How to format numbers as currency string?
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@JuliendePrabère Please give an example of a long number which doesn't work with this approach.
– VisioN
Mar 25 '14 at 10:53
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How to create a drop-down list?
...presso</item>
<item>Mocha</item>
<item>Caffè Americano</item>
<item>Cafe Zorro</item>
</string-array>
MainActivity
Spinner staticSpinner = (Spinner) findViewById(R.id.static_spinner);
// Create an ArrayAdapter using the string a...
Get current AUTO_INCREMENT value for any table
...answered Apr 4 '13 at 20:56
methaimethai
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IIS7 deployment - duplicate 'system.web.extensions/scripting/scriptResourceHandler' section
...eclared already.
Another quick fix is to have the application pool set to 2.0 just as your development machine appears to have,.
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