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Defining an array of anonymous objects in CoffeeScript
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answered Jan 27 '12 at 6:51
island205island205
1,6821616 silver badges2525 bronze badges
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Editing dictionary values in a foreach loop
...ed iterating.
For example:
Copying keys first
List<string> keys = new List<string>(colStates.Keys);
foreach(string key in keys)
{
double percent = colStates[key] / TotalCount;
if (percent < 0.05)
{
OtherCount += colStates[key];
colStates[key] = 0;
...
Uninstall all installed gems, in OSX?
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You could also build out a new Gemfile and run bundle clean --force. This will remove all other gems that aren't included in the new Gemfile.
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LINQ: Select an object and change some properties without creating a new object
...to change some properties of a LINQ query result object without creating a new object and manually setting every property. Is this possible?
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Download multiple files with a single action
...at. But browsers don't portably parse multipart responses from the server side, but technically there's nothing difficult with doing this.
– CMCDragonkai
Jul 27 '18 at 4:25
2
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Populating a razor dropdownlist from a List in MVC
...ivate IEnumerable<SelectListItem> GetRoles()
{
var dbUserRoles = new DbUserRoles();
var roles = dbUserRoles
.GetRoles()
.Select(x =>
new SelectListItem
{
Value = x.Use...
Add new field to every document in a MongoDB collection
How can I add a new field to every document in an existent collection?
5 Answers
5
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How do I base64 encode (decode) in C?
...ter to a "memory BIO" structure holding our base64 data.
b64_bio = BIO_new(BIO_f_base64()); //Initialize our base64 filter BIO.
mem_bio = BIO_new(BIO_s_mem()); //Initialize our memory sink BIO.
BIO_push(b64_bio, mem_bio); //Link t...
Update MongoDB field using value of another field
...te your collection but instead replace the existing collection or create a new one. Also for update operations that require "type casting" you will need client side processing, and depending on the operation, you may need to use the find() method instead of the .aggreate() method.
MongoDB 3.2 and 3...
How to show a dialog to confirm that the user wishes to exit an Android Activity?
...id 2.0+ this would look like:
@Override
public void onBackPressed() {
new AlertDialog.Builder(this)
.setIcon(android.R.drawable.ic_dialog_alert)
.setTitle("Closing Activity")
.setMessage("Are you sure you want to close this activity?")
.setPositiveButton("Yes", n...