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How to print a stack trace in Node.js?
...omething unexpected has occurred.
at main (c:\Users\Me\Documents\MyApp\app.js:9:15)
at Object. (c:\Users\Me\Documents\MyApp\app.js:17:1)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module....
“R cannot be resolved to a variable”? [duplicate]
...Here is the best way to solve this problem: [Android Development- Where is my R.Java file?][2]
R.java not regenerating
R cannot be resolved - Android error
R cannot be resolved to a variable
R cannot be resolved to a variable -- mailing list entry
Fixed: R cannot be resolved to a variable
...
Export Data from mysql Workbench 6.0
I'm trying to export my database, using MySQL Workbench 6.0 on Windows, to send to my db instance in Amazon RDS, but i'm getting this error:
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Join vs. sub-query
I am an old-school MySQL user and have always preferred JOIN over sub-query. But nowadays everyone uses sub-query, and I hate it; I don't know why.
...
How can I find all of the distinct file extensions in a folder hierarchy?
...a[] <<< awk: bailing out at source line 1. What am I doing wrong? My alias is defined like this: alias file_ext="find . -type f -name '.' | awk -F. '!a[$NF]++{print $NF}'"
– user2602152
Mar 1 '15 at 15:55
...
What is a “bundle” in an Android application
.....
Intent(getApplicationContext(), SecondActivity.class);
intent.putExtra("myKey", AnyValue);
startActivity(intent);
You can get the passed values by doing:
Bundle extras = intent.getExtras();
String tmp = extras.getString("myKey");
You can find more info at:
android-using-bundle-for-shari...
JavaScript hashmap equivalent
...sonally I try to avoid them at all costs, especially, if I know what makes my objects unique.
Update in 2014: Answered back in 2008 this simple solution still requires more explanations. Let me clarify the idea in a Q&A form.
Your solution doesn't have a real hash. Where is it???
JavaScript is a...
Should I size a textarea with CSS width / height or HTML cols / rows attributes?
...ave changed since '13 or whether there's something super non-obvious about my particular situation, but setting height: auto; in CSS doesn't seem to affect my textarea at all.
– clozach
Apr 1 '17 at 3:44
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Change project name on Android Studio
I want to change the name of my project and module. But if I try to rename them Android Studio notify me some errors...
e.g. I want to change the name from "MyApplication" to "AndroidApp" as shown in the image below.
In the first rectangle I want to change it in:
...
Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
...chema into ROM (it happens), then an * is perfectly acceptable.
However, my general guideline is that you should only select the columns you need, which means that sometimes it will look like you are asking for all of them, but DBAs and schema evolution mean that some new columns might appear that...