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Email Address Validation in Android on EditText [duplicate]
... target) {
return (!TextUtils.isEmpty(target) && Patterns.EMAIL_ADDRESS.matcher(target).matches());
}
Kotlin:
fun CharSequence?.isValidEmail() = !isNullOrEmpty() && Patterns.EMAIL_ADDRESS.matcher(this).matches()
Edit: It will work On Android 2.2+ onwards !!
Edit: Added miss...
Binding an enum to a WinForms combo box, and then setting it
... in mind the tryparse is a .net 4.0 statement.
– real_yggdrasil
Jun 22 '12 at 7:53
For me SelectedValue is always null...
Accessing a Dictionary.Keys Key through a numeric index
...t;K, T> : IDictionary<K, T>
{
private IDictionary<K, T> _InnerDictionary;
public K LastInsertedKey { get; set; }
public MyDictionary()
{
_InnerDictionary = new Dictionary<K, T>();
}
#region Implementation of IDictionary
public void Add(Key...
How can I search for a multiline pattern in a file?
... Regular Expressions GREP.
For example, you need to find files where the '_name' variable is immediatelly followed by the '_description' variable:
find . -iname '*.py' | xargs pcregrep -M '_name.*\n.*_description'
Tip: you need to include the line break character in your pattern. Depending on yo...
Xcode/Simulator: How to run older iOS version?
...
To add previous iOS simulator to Xcode 4.2, you need old xcode_3.2.6_and_ios_sdk_4.3.dmg (or similar version) installer file and do as following:
Mount the xcode_3.2.6_and_ios_sdk_4.3.dmg file
Open mounting disk image and choose menu: Go->Go to Folder...
Type /Volumes/Xcode and iOS...
How do I format a date in Jinja2?
...and print) the strftime() method in your template, for example
{{ car.date_of_manufacture.strftime('%Y-%m-%d') }}
Another, sightly better approach would be to define your own filter, e.g.:
from flask import Flask
import babel
app = Flask(__name__)
@app.template_filter()
def format_datetime(val...
App Inventor 2 向心力实验App - 手机传感器探究向心力F与角速度ω、半径r...
...* ax + ay * ay)
// 计算向心力 F = m * a
var m = 文本输入框_质量.Text + 0
var r = 文本输入框_半径.Text + 0
global 向心力 = m * 向心加速度
标签_加速度.Text = join("加速度: ", 向心加速度, " m/s²")
标签_角速度.Text = join("角速度: ", 当...
How do I check if a list is empty?
...al consensus seems to be that duck typing wins out (in effect, saying that __nonzero__ is the interface for testing emptiness docs.python.org/reference/datamodel.html#object.__nonzero__)
– andrew cooke
May 31 '12 at 14:50
...
Can mustache iterate a top-level array?
...he');
var view = {test: 'div content', multiple : ['foo', 'bar'], multiple_2 : ['hello', 'world']};
var template = '<div>{{test}}</div><ul>{{#multiple}}<li>{{.}}</li>{{/multiple}}</ul><ul>{{#multiple_2}}<li>{{.}}</li>{{/multiple_2}}</ul>';...
jQuery: Select data attributes that aren't empty?
...his Code Snippet.
* Snippet is running jQuery v2.1.1
jQuery('div.test_1 > a[href]').addClass('match');
jQuery('div.test_2 > a[href!=""]').addClass('match');
jQuery('div.test_3 > a[href!=""][href]').addClass('match');
div,a {
display: block;
color: #333;
margin: 5px;
...