swalkinshaw

Moved to Shopify/graphql-design-tutorial

dagingaa

module.exports = (file, api, options) => {
    const j = api.jscodeshift;
    const root = j(file.source);

    // We have to add "use strict" for node to play nice
    // Taken from https://github.com/cpojer/js-codemod/blob/master/transforms/use-strict.js
    const hasStrictMode = body =>
        body.some(
            statement => j.match(statement, {
                type: 'ExpressionStatement',

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent