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How to check if array element exists or not in javascript?
...fined') {
// does not exist
}
else {
// does exist
}
}
catch (error){ /* ignore */ }
...that's how it worked in chrome, anyway (otherwise, the code stopped with an error).
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Get: TypeError: 'dict_values' object does not support indexing when using python 3.2.3 [duplicate]
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Unfortuately, when I use the vlst example, I get an error "'dict' object has no attribute 'values'
– Jesse Pet
Jul 2 '13 at 17:18
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“std::endl” vs “\n”
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@Omnifarious: No std::cerr should be reserved for errors. The two streams are not synced together so if you output some text to cout it may be buffered and the cerr will go direct to the output this resulting in a mixed mode display. Use cerr for what it is supposed to be fo...
Format a Go string without printing?
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Example
fmt.Sprintf("foo: %s", bar)
You can also see it in use in the Errors example as part of "A Tour of Go."
return fmt.Sprintf("at %v, %s", e.When, e.What)
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Changing column names of a data frame
...as in q1 <- q1 %>% mutate(rel_count = count / 482462) results in the error Error in mutate_impl(.data, dots) : unknown column 'days' (where days is a new name given to the column). This is really frustrating.
– David Tonhofer
Feb 7 '17 at 21:19
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IIS 500.19 with 0x80070005 The requested page cannot be accessed because the related configuration d
...t website on IIS with IIS Manager. But when I do this, I get the following error
45 Answers
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ImportError: No module named six
... trying to build OpenERP project, done with dependencies. It's giving this error now
7 Answers
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Processing $http response in service
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Is there any way to still call the success and error methods in the controller after the service has intercepted with then?
– andyczerwonka
Jan 10 '13 at 2:31
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How to use a variable to specify column name in ggplot
... facet_grid? It works with facet_grid(cols = vars(!!column)) but throws an error with facet_grid(~ !!column)
– mRiddle
Oct 20 '19 at 6:57
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Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
...onHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
if (data) {
UIImage *image = [UIImage imageWithData:data];
if (image) {
dispatch_async(dispatch_get_main_queue(), ^{
MyCell *updat...