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How do I mock an open used in a with statement (using the Mock framework in Python)?
...ll(). You can also use handle.write.call_args_list to get each call if the order is important.
– Rob Cutmore
Sep 16 '15 at 13:28
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When should I use require() and when to use define()?
...ing it".
The require() function is where you use your defined modules, in order to be sure that the modules are defined, but you are not defining new modules there.
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How do I rename a column in a SQLite database table?
...BLE command as plain text, and the rows, whose values are appearing in the order of the fields from the CREATE command. Which means that the sqlite code opens the database, it parses each CREATE command and dynamically builds its column information in memory. So, any command that alters the CREATE c...
What are the security risks of setting Access-Control-Allow-Origin?
I recently had to set Access-Control-Allow-Origin to * in order to be able to make cross-subdomain ajax calls.
Now I can't help but feel that I'm putting my environment to security risks.
Please help me if I'm doing it wrong.
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How is attr_accessible used in Rails 4?
...ible in the model anymore.
Dealing with accepts_nested_attributes_for
In order to use accepts_nested_attribute_for with strong parameters, you will need to specify which nested attributes should be whitelisted.
class Person
has_many :pets
accepts_nested_attributes_for :pets
end
class PeopleC...
SQLite UPSERT / UPDATE OR INSERT
...te triggers: When the REPLACE conflict resolution strategy deletes rows in order to satisfy a constraint, delete triggers fire if and only if recursive triggers are enabled.
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How do lexical closures work?
...he last value in the loop: the effect is what reported in the example.
In order to evaluate i and use its value, a common pattern is to set it as a parameter default: parameter defaults are evaluated when the def statement is executed, and thus the value of the loop variable is frozen.
The followi...
Check whether a string matches a regex in JS
... had to remove double quotes in new RegExp("^([a-z0-9]{5,})$") in order to make it work
– Facundo Colombier
Oct 17 '18 at 19:30
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Why does overflow:hidden not work in a ?
...e fixed width cell(s).
With one fixed width column:
* {
box-sizing: border-box;
}
table {
table-layout: fixed;
border-collapse: collapse;
width: 100%;
max-width: 100px;
}
td {
background: #F00;
padding: 20px;
overflow: hidden;
white-space: nowrap;
width: 100px;
border: soli...
JavaScript regex multiline flag doesn't work
... issues, it is highly recommended to use the *? quantifier instead of * in order to avoid greediness. This will avoid catching the last <h1> of the document: that's probably not what you want and that's not efficient as the regexp will continue to look for <h1> until the end of the strin...