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let list = [1, 2]
list = list.concat(3)
console.log(list) // [1, 2, 3]

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let whatAmI = document.body
whatAmI = [1, 2, 3]

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OUTDATED

JavaScriptCore is a built-in iOS library that enables you to use JavaScript in apps alongside Objective-C and Swift. It lets developers read JavaScript from a string, execute it from Objective-C or Swift, and share data structures and functions across languages. We JavaScriptCore to share code between Web and iOS.

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<style lang="sass">

</style>

<template>
  <input
    class="input-text"
    @input="update"
    :placeholder="args.placeholder"
    :value="value"

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#!/bin/bash
REPO=$1
VERSION=$2
cd ../$REPO
git fetch
git checkout v$VERSION
npm link
cd -
npm link $REPO 

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#!/bin/bash
# written with @felkerch
REPO=$1
VERSION=$2
cd ../$REPO
git fetch
git checkout v$VERSION
npm link
cd -
npm link $REPO 

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// Architecture 1

function callApi(x, y, z) {
    manipulate params
    manipulate params some more ...
    return fetch(...)
        .then(result => {
            if (result.status === ...) {
                handle status stuff
            }

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// Architecture 2

function callApi(x, y, z) {
    const request = buildRequest(x, y, z)
    return fetch(request)
            .then(assertStatus('callApi', x, y, z))
            .then(parseResponse)

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**Diagram 1: Types of Code**

                       high
                       ^                ||
                       ^                ||
                       ^ boring I/O     ||  interesting I/O
                       ^                ||
cost of testing        ^ ================================
 ^ ||

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**Diagram 2: Should I unit test?**

                       high
                       ^                ||
                       ^                ||
                       ^  don't test    ||  maybe test
                       ^                ||
cost of testing        ^ ================================
 ^ ||