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// styles of an external object which is placed
// next to a node from the outside



.diagram-node__satelite {
    transform: translate(100px) var(--transform-y, );
}

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const removeStyleProp = (elm, prop) => 
  elm.style.cssText = elm.style.cssText  // cssText automatically (luckily) adds spaces between declarations
    .split('; ')
    .filter(p => !p.startsWith(prop) )
    .join(';');

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/**
 * Concatenates N arrays without dups.
 * If an array's item is an Object, compare by `value`
 * @param {*} k
 */
export const concatWithoutDups = (...key) => {
    const result = (...args) => {
        const newArr = [],
            existingObj = {};

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import { Meta, Description, Props, Source, Canvas } from '@storybook/addon-docs/blocks';
import Comp from './Comp';
import CompRaw from '!raw-loader!./Comp.jsx';
import readme from '!raw-loader!./readme.md';

<Meta
  title="Comp/MDX"
  component={Comp}
/>

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/**
 * positions a DOM element next to a certain position
 * @param {HTMLElement} elm DOM element node
 * @param {Object} pos x,y which should probably be within the viewport visible area
 */
export default (elm, pos) => {
  const overflowOffset = 20;

  const pageSize = {
    w: document.documentElement.clientWidth,

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// usage: Math.clamp(min, number, max)
Math.clamp = Math.clamp || ((a,b,c) => Math.max(a,Math.min(b,c)))

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Converts props into css variables in styled-components

Example usage

import React from 'react'
import styled from '@xstyled/styled-components'
import { cx, getCSSVars } from 'utils'

const StyledIconBase = styled.i`

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import React, { useState, useEffect } from 'react'

const ShowIf = ({ children, breakpoint = 420, math = '>' }) => {
  const [width, setWidth] = useState(window.innerWidth)

  useEffect(() => {
    const resizeObserver = new ResizeObserver(() => setWidth(window.innerWidth))
    resizeObserver.observe(document.body)

    return () => resizeObserver.unobserve(document.body)

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function extend( o, o1, o2) {
    if( !(o instanceof Object) ) o = {};

    copy(o, o1);
    if( o2 )
        copy(o, o2)

    function copy(a,b){
        // copy o2 to o
        for( var key in b )

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 const isObject = obj => (obj+"") === "[object Object]"