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How to check if a value exists in an array in Ruby
...nally; there is no way to test for membership of an array without looping. If you don't want to do any looping even internally, you need to use a different data structure, such as a perfect hash table with fixed sized keys. Given that there's no way to test for membership in an array without loopin...
How to use a variable for the key part of a map
... strings by default: [a:1] is equivalent to ['a':1]. This can be confusing if you define a variable named a and that you want the value of to be the key in your map. If this is the case, then you must escape >the key by adding parenthesis..
– Michal Bernhard
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Get all attributes of an element using jQuery
...array
// of attribute nodes, which contain both the name and value
if(this.specified) {
console.log(this.name, this.value);
}
});
});
What you can also do is extending .attr so that you can call it like .attr() to get a plain object of all attributes:
(function(old) {
$.fn...
how to change any data type into a string in python
...
str is meant to produce a string representation of the object's data. If you're writing your own class and you want str to work for you, add:
def __str__(self):
return "Some descriptive string"
print str(myObj) will call myObj.__str__().
repr is a similar method, which generally produce...
Using WebAPI or MVC to return JSON in ASP.NET
... not just MVC applications. Thus, an obvious reason to create a Web API is if you do not have an MVC front-end (e.g. classic, RESTful web-services hosted by your company/organization.)
MVC Controllers typically rely on the MVC Framework, if you look at default templates and most of the work done by...
Downloading a large file using curl
...
Correct me if I'm wrong, but I don't think you actually need to manually fwrite the data since you're using CURLOPT_FILE.
– Sasha Chedygov
Nov 9 '12 at 18:00
...
UITextView that expands to text using auto layout
...tionHeightConstraint setConstant:descriptionSize.height];
[self layoutIfNeeded];
}
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How to empty a list?
...he old list will still have the same elements, and effect will be apparent if it had other variable bindings.
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Spring CrudRepository findByInventoryIds(List inventoryIdList) - equivalent to IN clause
...in the current documentation listing. It shows that IsIn is equivalent – if you prefer the verb for readability – and that JPA also supports NotIn and IsNotIn.
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Is there any git hook for pull?
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The githooks man page is a complete list of hooks. If it's not on there, it doesn't exist.
That said, there is a post-merge hook, and all pulls include a merge, though not all merges are pulls. It's run after merges, and can't affect the outcome. It never gets executed if th...