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How to export collection to CSV in MongoDB?
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@karoly-horvath has it right. Fields are required for csv.
According to this bug in the MongoDB issue tracker https://jira.mongodb.org/browse/SERVER-4224 you MUST provide the fields when exporting to a csv. The docs are not clear on it. That is...
How to get the absolute coordinates of a view
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edited Mar 22 '18 at 11:22
TapanHP
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What exceptions should be thrown for invalid or unexpected parameters in .NET?
...d ArgumentOutOfRangeException.
ArgumentException – Something is wrong with the argument.
ArgumentNullException – Argument is null.
ArgumentOutOfRangeException – I don’t use this one much, but a common use is indexing into a collection, and giving an index which is to large.
There are oth...
Run PHP Task Asynchronously
...de where I need to complete some task, but I don't want to make the user wait for the result. For example, when creating a new account, I need to send them a welcome email. But when they hit the 'Finish Registration' button, I don't want to make them wait until the email is actually sent, I just wan...
How to test an Android Library Project
I am writing an Android Library Project basing on Android Bitmap class (call it AndroindLib) which contains only utility class (no activity). I tried to test it using Android JUnit, but it keeps complaining that can't find the AnroidLib.apk
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JPA EntityManager: Why use persist() over merge()?
EntityManager.merge() can insert new objects and update existing ones.
15 Answers
15
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How can I check if a string represents an int, without using try/except?
...esents an integer (e.g., '3' , '-17' but not '3.14' or 'asfasfas' ) Without using a try/except mechanism?
18 Answers
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Regular expression to match numbers with or without commas and decimals in text
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EDIT: Since this has gotten a lot of views, let me start by giving everybody what they Googled for:
#ALL THESE REQUIRE THE WHOLE STRING TO BE A NUMBER
#For numbers embedded in sentences, see discussion below
#### NUMBERS AND ...
Best way to store password in database [closed]
... a salt (which should be different for every user) and a secure 1-way algorithm and store that, throwing away the original password. Then, when you want to verify a password, you hash the value (using the same hashing algorithm and salt) and compare it to the hashed value in the database.
So, while...
Difference between git stash pop and git stash apply
I've been using git stash pop for quite some time. I recently found out about the git stash apply command. When I tried it out, it seemed to work the same as git stash pop .
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