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How to set default values in Rails?
... also need to specify the column type: change_column :people, :last_name, :string, default: "Doe"
– GoBusto
Apr 24 '15 at 10:37
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Read only the first line of a file?
How would you get only the first line of a file as a string with Python?
8 Answers
8
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Multiple DB Contexts in the Same DB and Application in EF 6 and Code First Migrations
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Do I have to have a separate connection string for each context or is there a way around that?
– Lrayh
Feb 4 '14 at 15:20
3
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ASP.NET MS11-100: how can I change the limit on the maximum number of posted form values?
...s calling ThrowIfMaxHttpCollectionKeysExceeded().
public HttpCookie Get(string name)
{
HttpCookie cookie = (HttpCookie) base.BaseGet(name);
if ((cookie == null) && (this._response != null))
{
cookie = new HttpCookie(name);
this.AddCookie(cookie, true);
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How to use a variable inside a regular expression?
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From python 3.6 on you can also use Literal String Interpolation, "f-strings". In your particular case the solution would be:
if re.search(rf"\b(?=\w){TEXTO}\b(?!\w)", subject, re.IGNORECASE):
...do something
EDIT:
Since there have been some questions in the co...
Determine what attributes were changed in Rails after_save callback?
... Works great! Also to be noted, the result of self.changed is an array of strings! (Not symbols!) ["attr_name", "other_attr_name"]
– LukeS
Mar 2 '17 at 23:18
add a comment
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Shell command to sum integers, one per line?
...rz1<rp does the following:
[ interpret everything to the next ] as a string
+ push two values off the stack, add them and push the result
z push the current stack depth
1 push one
<r pop two values and execute register r if the original top-of-stack (1)
is smaller
] e...
Get a CSS value with JavaScript
... to check what unit it returns, you can get that without any slice() or substring() string.
var element = document.querySelector('.js-header-rep');
element.computedStyleMap().get('padding-left');
var element = document.querySelector('.jsCSS');
var con = element.computedStyleMap().get('paddin...
Referring to a Column Alias in a WHERE Clause
... Do you happen to know how this fairs efficiency wise? Is there extra overhead using a CTE?
– James
Jul 4 '14 at 9:20
5
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ValueError: setting an array element with a sequence
...s.
Edit: Another possible cause for this error message is trying to use a string as an element in an array of type float:
numpy.array([1.2, "abc"], dtype=float)
That is what you are trying according to your edit. If you really want to have a NumPy array containing both strings and floats, you c...