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How to create a hash or dictionary object in JavaScript [duplicate]
...t support the [subscript] notation used by Objects. That syntax implicitly casts the subscript value to a primitive string or symbol. Maps support any values as keys, so you must use the methods .get(key), .set(key, value) and .has(key).
var m = new Map();
var key1 = 'key1';
var key2 = {};
v...
Using ConfigurationManager to load config from an arbitrary location
...e following exception on accessing the AppSettings property:
Unable to cast object of type 'System.Configuration.DefaultSection' to type 'System.Configuration.AppSettingsSection'.
Here is the correct solution:
System.Configuration.ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap(...
Convert float to double without losing precision
I have a primitive float and I need as a primitive double. Simply casting the float to double gives me weird extra precision. For example:
...
How to change row color in datagridview?
...
Cast them to Integer, then. :-) something like: Convert.ToInt32(dvgr.Cells[7].Value) < Convert.ToInt32(dgvr.Cells[10].Value)
– Demi
Feb 5 '10 at 2:12
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Can we delete an SMS in Android before it reaches the inbox?
... a nice Android-specific UI.
As of Android 1.6, incoming SMS message broadcasts (android.provider.Telephony.SMS_RECEIVED) are delivered as an "ordered broadcast" — meaning that you can tell the system which components should receive the broadcast first.
If you define an android:priority attribut...
Javascript: Setting location.href versus location
...ndow.location.replace('/step1', '/step2');
The following codes work:
// cast to string
nextUrl = (window.location+'').replace('/step1', '/step2');
// href property
nextUrl = window.location.href.replace('/step1', '/step2');
...
How can I check if a string is null or empty in PowerShell?
...ion to [string]::IsNullOrEmpty in order to check for null or empty you can cast a string to a Boolean explicitly or in Boolean expressions:
$string = $null
[bool]$string
if (!$string) { "string is null or empty" }
$string = ''
[bool]$string
if (!$string) { "string is null or empty" }
$string = 's...
How to use clock() in C++
...out << "Delta t2-t1: "
<< std::chrono::duration_cast<std::chrono::nanoseconds>(t2 - t1).count()
<< " nanoseconds" << std::endl;
}
Running this on ideone.com gave me:
Delta t2-t1: 282 nanoseconds
...
How can I filter a date of a DateTimeField in Django?
...lementedError: subclasses of basedatabaseoperations may require a datetime_cast_date() method
– AbdurRehman Khan
Oct 1 '19 at 7:04
add a comment
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Remove last character from string. Swift language
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In Swift 2.0 for have to properly cast the result expression = String(expression.characters.dropLast()) if you want it back as a String
– cromanelli
Sep 18 '15 at 18:57
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