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What is causing this ActiveRecord::ReadOnlyRecord error?
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Rails 2.3.3 and lower
From the ActiveRecord CHANGELOG(v1.12.0, October 16th, 2005):
Introduce read-only records. If you call object.readonly! then it will
mark the object as read-only and raise
ReadOnlyRecord if you call
object.save. object.readonly? reports
whether the object ...
What is a Lambda?
Could someone provide a good description of what a Lambda is? We have a tag for them and they're on the secrets of C# question, but I have yet to find a good definition and explanation of what they are in the first place.
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How to remove newlines from beginning and end of a string?
I have a string that contains some text followed by a blank line. What's the best way to keep the part with text, but remove the whitespace newline from the end?
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File Hash 扩展：文件哈希计算和 Base64 编码文件，sha256、sha512 哈希 ·...
... File Hash 扩展：文件哈希计算和 Base64 编码文件，sha256、sha512 哈希
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How to make git diff --ignore-space-change the default
I could probably setup an alias, but it seems like I should be able to set this as an option in the config file, only I don't see anyway to do it.
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Get array of object's keys
I would like to get the keys of a JavaScript object as an array, either in jQuery or pure JavaScript.
7 Answers
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Way to get all alphabetic chars in an array in PHP?
Is there a way to get all alphabetic chars (A-Z) in an array in PHP so I can loop through them and display them?
14 Answers...
How to evaluate a math expression given in string form?
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With JDK1.6, you can use the built-in Javascript engine.
import javax.script.ScriptEngineManager;
import javax.script.ScriptEngine;
import javax.script.ScriptException;
public class Test {
public static void main(String[] args) throws ScriptException...
Throw away local commits in Git
Due to some bad cherry-picking, my local Git repository is currently five commits ahead of the origin, and not in a good state. I want to get rid of all these commits and start over again.
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Use Mockito to mock some methods but not others
Is there any way, using Mockito, to mock some methods in a class, but not others?
5 Answers
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