timvisee

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

islishude

/**
 * @file get/set caret position and insert text
 * @author islishude
 * @license MIT
 */
export class Caret {
    /**
     * get/set caret position
     * @param {HTMLColletion} target 
     */

pthiers

/*
 * Available context bindings:
 *   COLUMNS     List<DataColumn>
 *   ROWS        Iterable<DataRow>
 *   OUT         { append() }
 *   FORMATTER   { format(row, col); formatValue(Object, col) }
 *   TRANSPOSED  Boolean
 * plus ALL_COLUMNS, TABLE, DIALECT
 *
 * where:

adamterlson

Lightning talk proposal for the Reactive 2016 Conference. Here's a handy retweet link

If you want to hear this talk, or if you just want to support me, please star ⭐ the Gist!

When I started writing React apps, I approached components as if they were “just the V in MVC!” Seriously, we’ve all heard it.

I have found this to be an inferior way of thinking about and building React applications. It makes people treat React as a drop-in replacement for something like a Backbone or Angular 1.x View. In other words, people treat it like a glorified template system with partials and don’t harness the power of its functional paradigms.

This talk is about a functional way to write and conceptualize entire React applications.

Faheetah

node {
    echo 'Results included as an inline comment exactly how they are returned as of Jenkins 2.121, with $BUILD_NUMBER = 1'
    echo 'No quotes, pipeline command in single quotes'
    sh 'echo $BUILD_NUMBER' // 1
    echo 'Double quotes are silently dropped'
    sh 'echo "$BUILD_NUMBER"' // 1
    echo 'Even escaped with a single backslash they are dropped'
    sh 'echo \"$BUILD_NUMBER\"' // 1
    echo 'Using two backslashes, the quotes are preserved'
    sh 'echo \\"$BUILD_NUMBER\\"' // "1"

scy

Opening and closing an SSH tunnel in a shell script the smart way

I recently had the following problem:

• From an unattended shell script (called by Jenkins), run a command-line tool that accesses the MySQL database on another host.
• That tool doesn't know that the database is on another host, plus the MySQL port on that host is firewalled and not accessible from other machines.

We didn't want to open the MySQL port to the network, but it's possible to SSH from the Jenkins machine to the MySQL machine. So, basically you would do something like

ssh -L 3306:localhost:3306 remotehost

endolith

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