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new Date() works differently in Chrome and Firefox
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Using IoC for Unit Testing
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SQL query to find record with ID not in another table
... pk do not exist in B.
Old but still gold, specific to PostgreSQL though: https://explainextended.com/2009/09/16/not-in-vs-not-exists-vs-left-join-is-null-postgresql/
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How to round a number to n decimal places in Java
...double values. That is fine if you don't care much whether it rounds up or down. But if you want accurate rounding, then you need to take the expected accuracy of the values into account. Floating point values have a binary representation internally. That means that a value like 2.7735 does not actu...
Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
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Remote connect to clearDB heroku database
...outube.com/watch?v=2OGHdii_42s
This is the code in case you want to see:
https://github.com/mescalito/MySql-NodeJS-Heroku
Here is part of the code:
var express = require("express");
var mysql = require('mysql');
var app = express();
app.use(express.logger());
var connection = mysql.createC...
Mailto links do nothing in Chrome but work in Firefox?
...it down to the fact that my link was within an iframe, and my web app uses https. Chrome was blocking it due to this (Chrome would open other mailto links outside of the iframe).
In mailto link not working within a frame chrome (over https), kendsnyder mentioned simply changing
<a href="mailto...
Why Collections.sort uses merge sort instead of quicksort?
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“continue” in cursor.forEach()
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Does Python have a package/module management system?
...download and publish packages. Python has the Python Package Index, PyPI. https://pypi.python.org/pypi
Let's compare its pages with those of RubyGems and Npm (the Node package manager).
https://rubygems.org/gems/rails RubyGems page for the package rails
https://www.npmjs.org/package/express Np...