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Entity Framework rollback and remove bad migration
...things that have gone to multiple environments.
The other option is to actually run Update-Database –TargetMigration: TheLastGoodMigration against your deployed database and then delete the migration from your solution. This is kinda the hulk smash alternative and requires this to be performed aga...
What happens to global and static variables in a shared library when it is dynamically linked?
...and what happens when modules with globals and static variables are dynamically linked to an application.
By modules, I mean each project in a solution (I work a lot with visual studio!). These modules are either built into *.lib or *.dll or the *.exe itself.
...
How do I avoid capturing self in blocks when implementing an API?
...ied inside the block (we're not doing that) but also they are not automatically retained when the block is retained (unless you are using ARC). If you do this, you must be sure that nothing else is going to try to execute the block after the MyDataProcessor instance is released. (Given the structure...
Is it possible to get the non-enumerable inherited property names of an object?
... use that and combine it with walking up the prototype chain.
function getAllProperties(obj){
var allProps = []
, curr = obj
do{
var props = Object.getOwnPropertyNames(curr)
props.forEach(function(prop){
if (allProps.indexOf(prop) === -1)
al...
hasNext in Python iterators?
...thod to put the first element back after I have checked that it exists by calling next().
– Giorgio
Dec 24 '12 at 20:26
16
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Replacing some characters in a string with another character
I have a string like AxxBCyyyDEFzzLMN and I want to replace all the occurrences of x , y , and z with _ .
5 Answers
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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
I just started using Qt and noticed that all the example class definitions have the macro Q_OBJECT as the first line. What is the purpose of this preprocessor macro?
...
How to implement an STL-style iterator and avoid common pitfalls?
...requirements for an iterator to be "STL-style" and what are some other pitfalls to avoid (if any)?
8 Answers
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How do you get a query string on Flask?
...ut since this answer correctly answers the question my Google search terms alluded to ('flask get request parameter') I'm up-voting it anyhow. I'm a pedant too, but I'm chalking this up to web mysticism. ????
– Michael Scheper
Jan 13 '17 at 23:45
...
Reference — What does this symbol mean in PHP?
... have the same results.
Pre-increment is a little bit faster because it really increments the variable and after that 'returns' the result. Post-increment creates a special variable, copies there the value of the first variable and only after the first variable is used, replaces its value with seco...