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How to check edittext's text is email address or not?

...lidation Example" /> </RelativeLayout> Step 2: import android.app.Activity; import android.os.Bundle; import android.text.Editable; import android.text.TextWatcher; import android.widget.EditText; Step 3: public class MainActivity extends Activity { private EditText email; private ...
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git: How to ignore all present untracked files?

... don't have a .gitignore file yet your gitignore will ignore itself! This happens because the file .gitignore gets created before the git status --porcelain is executed. So if you don't have a .gitignore file yet I recommend using: echo "$(git status --porcelain | grep '^??' | cut -c4-)" > .giti...
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What is the difference between __dirname and ./ in node.js?

... Is there any way to reference the working directory of the app with fs? For example, I'm trying to load a file from the working directory /movies, but since my module is in a file /custom_modules/, __dirname tries to grab the movie from , /custom_modules/movies –...
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What should a Multipart HTTP request with multiple files look like? [duplicate]

I'm working on an iPhone app that makes a multipart HTTP request with multiple image files. 2 Answers ...
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Sending command line arguments to npm script

...ol Should output: { myVar: 'something' } Update: Using npm 3.10.3, it appears that it lowercases the process.env.npm_config_ variables? I'm also using better-npm-run, so I'm not sure if this is vanilla default behavior or not, but this answer is working. Instead of process.env.npm_config_myVar,...
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How to scroll to the bottom of a UITableView on the iPhone before the view appears

... doesn't work on ios 10-12 - table simply disappear for first time – Vyachaslav Gerchicov Dec 7 '18 at 14:19 2 ...
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Get notified when UITableView has finished asking for data?

...le of days and think that subclassing UITableView's reloadData is the best approach : - (void)reloadData { NSLog(@"BEGIN reloadData"); [super reloadData]; NSLog(@"END reloadData"); } reloadData doesn't end before the table has finish reload its data. So, when the second NSLog is f...
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How do I use IValidatableObject?

...rties with Validator: When validating an object, the following process is applied in Validator.ValidateObject: Validate property-level attributes If any validators are invalid, abort validation returning the failure(s) Validate the object-level attributes If any validators are invalid, abort valid...
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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?

...uations where the quality of your randomness can affect the security of an application. In particular, rand() and uniqid() are not cryptographically secure random number generators. See Scott's answer for a secure alternative. If you do not need it to be absolutely unique over time: md5(uniqid(ra...
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How do I view the SQL generated by the Entity Framework?

... You can do the following: IQueryable query = from x in appEntities where x.id == 32 select x; var sql = ((System.Data.Objects.ObjectQuery)query).ToTraceString(); or in EF6: var sql = ((System.Data.Entity.Core.Objects.ObjectQuery)query) .T...