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Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
...ind an element in a long list by:
try:
x = my_list[index]
except IndexError:
x = 'NO_ABC'
the try, except is the best option when the index is probably in the list and the IndexError is usually not raised. This way you avoid the need for an extra lookup by if index < len(my_list).
Pyt...
How do I manage MongoDB connections in a Node.js web application?
....then(() => bootMyApplication())
.catch((e) => {
console.error(e);
// Always hard exit on a database connection error
process.exit(1);
});
When in flight your app can simply call get() when it needs a DB connection.
const db = require('./myAwesomeDbModule');
...
IntelliJ gives Fatal Error: Unable to find package java.lang in classpath or bootclasspath
...
This error happend to me after i've updated my JDK version to jdk1.8.0_161 -
But the project's sdk was still pointing to the old jdk 1.8.0_131
(Seems that updgrading java causing the previous version to be wiped).
Do this:
In...
IIS7 deployment - duplicate 'system.web.extensions/scripting/scriptResourceHandler' section
... pool in IIS7 having the framework section set to 4.0, I get the following error.
15 Answers
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Help with C# generics error - “The type 'T' must be a non-nullable value type”
... of that function -- it's the Nullable class that is the root cause of the error, so this is actually more helpful that if the compiler just pointed to your function and said "this ain't right, fix it!" (Imagine if CoalesceMax used several generics, and violated the constraint on only one of them - ...
How to fix the “java.security.cert.CertificateException: No subject alternative names present” error
... browser validation for SSL protocols (Poodle vulnerability) gives me: ssl_error_no_cypher_overlap. Any ideas?
– will824
May 28 '15 at 22:34
...
How to convert a String to CharSequence?
...for OP's question by posting my own trouble. I'm working in Scala, but the error messages I'm getting all reference Java types, and the error message reads a lot like the compiler complaining that CharSequence is not a String. I confirmed in the source code that String implements the CharSequence i...
AngularJS validation with no enclosing
...="form-control" ng-model="bindTo" ng-maxlength="5">
<span class="error" ng-show="myForm.myInput.$error.maxlength">Too long!</span>
</div>
Example
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Debugging “Element is not clickable at point” error
...
I tried Firefox and found it did not give this error, yet the click was still ignored. It turned out to be the a parent div had a height of zero. Once that was fixed both worked fine.
– dansalmo
Jun 28 '17 at 21:13
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How to check that an object is empty in PHP?
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The typecasting doesn't work for me, because I get the error: PHP Parse error: syntax error, unexpected '(array)' (array) (T_ARRAY_CAST) in ... I use PHP version 5.4.28 and the first option with two lines of code works for me.
– Coanda
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