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How to do a LIKE query in Arel and Rails?
...ers[:name].matches("%#{user_name}%"))
PS:
users = User.arel_table
query_string = "%#{params[query]}%"
param_matches_string = ->(param){
users[param].matches(query_string)
}
User.where(param_matches_string.(:name)\
.or(param_matches_string.(:description)))
...
How to sort with lambda in Python
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This does not work for string integers. Check this out! lst = [('999', '9'), ('303', '30'), ('343', '34')] lst.sort(key=lambda x: x[1]) print(lst)
– Daniel Kua
Jun 13 at 4:26
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How to add reference to a method parameter in javadoc?
...y good to know when you refer to a generic type such as {@code Iterator<String>} -- sure looks nicer than <code>Iterator&lt;String&gt;</code>, doesn't it!
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How to convert SSH keypairs generated using PuTTYgen (Windows) into key-pairs used by ssh-agent and
...it will automatically show you an OpenSSH compatible, copyable, public key string in the UI.
– UpTheCreek
May 3 '15 at 18:55
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show 1 more c...
Nullable ToString()
...question, the former solution is suggested while nobody actually notices ToString() already gives the correct answer.
Maybe the argument for the more verbose solution is readability: When you call ToString() on something that is supposed to be null, you usually expect a NullReferenceException, alth...
Parsing domain from a URL
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Don’t forget to quote your strings like host and path.
– Gumbo
Dec 29 '09 at 11:02
1
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Python regular expressions return true/false
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re.match(...) would return true if the string's beginning part match the regular pattern. While search will confirm the pattern anywhere in the string.
– Yu Shen
Jun 8 '13 at 9:57
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How do I pass multiple attributes into an Angular.js attribute directive?
... a boolean value using a object? I tried {{true}} but it still returns the string value true.
– Peter Boomsma
Nov 20 '19 at 16:23
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Generic method multiple (OR) type constraint
... You can, however, define overloads for specific types:
public void test(string a, string arg);
public void test(string a, Exception arg);
If those are part of a generic class, they will be preferred over the generic version of the method.
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C# - Selectively suppress custom Obsolete warnings
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using System;
class Test
{
[Obsolete("Message")]
static void Foo(string x)
{
}
static void Main(string[] args)
{
#pragma warning disable 0618
// This one is okay
Foo("Good");
#pragma warning restore 0618
// This call is bad
Foo("Bad");
...