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how to get first three characters of an NSString?
...e string contains at least 3 characters:
NSString *fullString = /* obtain from somewhere */;
NSString *prefix = nil;
if ([fullString length] >= 3)
prefix = [fullString substringToIndex:3];
else
prefix = fullString;
substringToIndex: will throw an exception if the index you provide is ...
Can I click a button programmatically for a predefined intent?
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Here there is no need of displaying UI.
Can I get the "Send" button click from the MMS-SMSProvider in Android?
3 Answers
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How do I accomplish an if/else in mustache.js?
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It just keeps you way from messing with if else logic . Having a lot of nested if/else inside another if/else is a sign of misdesign
– Tebe
Dec 13 '17 at 12:41
...
`levels
...uates your expression within that environment. Assigning the return object from the call to within() thus succeeds in the properly modified data frame.
Here is an example (you don't need to create new datX - I just do that so the intermediary steps remain at the end)
## one or t'other
#dat2 <- ...
Adding asterisk to required fields in Bootstrap 3
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This is a separate issue from your original question. But your CSS is doing exactly what you're telling it to. It's putting the asterisk with the label field (which for your terms and conditions is blank) and not the input field. If you want them to ...
Serializing a list to JSON
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building on an answer from another posting.. I've come up with a more generic way to build out a list, utilizing dynamic retrieval with Json.NET version 12.x
using Newtonsoft.Json;
static class JsonObj
{
/// <summary>
/// Deseriali...
Popup弹出菜单扩展 · App Inventor 2 中文网
...这一点。
从字符串设置菜单项
MenuItemsFromString属性在设计器和运行时都可用。单个项目定义用逗号分隔列出：
从列表设置菜单项
SetMenuItems方法允许将菜单项定义为列表：
从文件...
$on and $broadcast in angular
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The best way to avoid deciding between $emit or $broadcast is to channel from the $rootScope and use $broadcast to all its children. Which makes our case much easier since our dom elements are siblings.
Adding $rootScope and lets $broadcast
app.controller('FirstCtrl', function($rootScope, $scop...
How to determine device screen size category (small, normal, large, xlarge) using code?
... can target the latest version of the platform and reference the constants from the Configuration class. These are static final values that will be inlined at compile time (that is, they will be replaced by their actual values), so your code won't break on older versions of the platform.
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JavaScript replace/regex
... @seth, Your answer works, but it does not provide a solution to the code from OP. How do I have to call OP's code?
– Black
Jun 17 '19 at 9:59
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