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Synchronous request in Node.js
...ce when you use res.getBody(), all get body does is accept an encoding and convert the response data. Just do res.body.toString(encoding) instead.
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How to use a filter in a controller?
...ways to do this.
Let's assume you have the following simple filter, which converts a string to uppercase, with a parameter for the first character only.
app.filter('uppercase', function() {
return function(string, firstCharOnly) {
return (!firstCharOnly)
? string.toUpperCas...
DbEntityValidationException - How can I easily tell what caused the error?
... var errorMessages = ex.EntityValidationErrors
.SelectMany(x => x.ValidationErrors)
.Select(x => x.ErrorMessage);
// Join the list to a single string.
var fullErrorMessage = string.Join("; ", errorMessages);
...
Iterating over every two elements in a list
...turns a zip object in Python 3, which is not subscriptable. It needs to be converted to a sequence (list, tuple, etc.) first, but "not working" is a bit of a stretch.
– vaultah
Feb 25 '17 at 14:03
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SVN command to delete all locally missing files
...TortoiseSVN, just do a Check for Modifications, sort by the Status column, select all the entries marked missing, right-click to open the context menu, and select Delete. Finally, commit to publish the changes to the repository.
If you are on Windows, but prefer the command-line and enjoy dabbling ...
Finding ALL duplicate rows, including “elements with smaller subscripts”
...gt;% filter(n > 1) # data frame
df %>% add_count(col1, col2) %>% select(n) > 1 # logical vector
For duplicate rows (considering all columns):
df %>% group_by_all %>% add_tally %>% ungroup %>% filter(n > 1)
df %>% group_by_all %>% add_tally %>% ungroup %>% ...
Simple Pivot Table to Count Unique Values
...ually solves a slightly different problem.
If you have that version, then select your data to create a pivot table, and when you create your table, make sure the option 'Add this data to the Data Model' tickbox is check (see below).
Then, when your pivot table opens, create your rows, columns an...
Are +0 and -0 the same?
...y to fix this is to do smth like:
if (x==0) x=0;
or just:
x+=0;
This converts the number to +0 in case it was -0.
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Difference between freeze and seal
...rn false
It makes every existing property non-configurable: they cannot be converted from 'data descriptors' to 'accessor descriptors' (and vice versa), and no attribute of accessor descriptors can be modified at all (whereas data descriptors can change their writable attribute, and their value attr...
Xcode Command /usr/bin/codesign failed with exit code 1 : errSecInternalComponent
...
Open Keychain Access, then in the File menu select Lock All Keychains.
Then go back to Xcode and clean and rebuild. It will prompt you for your password again to unlock the keychain.
After this, assuming you have no other compile issues, it will succeed!
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