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/**
 * Set URL Parameter
 * @param { String } key
 * @param { String } value
 * @param { String } url
 */
export function setUrlParameter(key, value, url = window.location.href) {
  let reg = new RegExp("([?&])" + key + "=.*?(&|$)", "i")
  let separator = url.indexOf('?') !== -1 ? "&" : "?"

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/**
 * Turns a list of nodes into an array
 * @param  { NodeList } nodeList
 * @return { Array }
 */
export function nodesToArray(nodeList) {
  return [...nodeList];
  return Array.from(nodeList);
  return [].slice.call(nodeList);
  return Array.prototype.slice.call(nodeList);

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/**
 * Dependencies
 */
const breakpoints = {
  xs: 300,
  sm: 600,
  md: 800,
  lg: 1200,
  xl: 1600
};

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/**
 * Get closest DOM element up the tree that contains a class, ID, or data attribute
 * @param  {Node} elem       The base element
 * @param  {String} selector The class, id, data attribute, or tag to look for
 * @return {Node}            Element or Null if no match
 */
export function getClosest (elem, selector) {
  let firstChar = selector.charAt(0);

  // Get closest match

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/**
 * Check if element is in viewport
 * @param  {Node} el
 * @return {Object}
 */
export function elementInViewport(el) {
  let top = el.offsetTop;
  let left = el.offsetLeft;
  let width = el.offsetWidth;
  let height = el.offsetHeight;

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/**
 * isUndefined
 * Check if object is undefined
 * @param  {Anything} value
 * @return {Boolean} Returns `true` if `value` is `undefined`, else `false`.
 */
export function isUndefined(value) {
  return value === undefined;
}

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var distance = distanceBetween({
  lat: 59.329323,
  lng: 18.068581
}, {
  lat: 57.708870,
  lng: 11.974560
});

function getRadius(x) {
  return x * Math.PI / 180;

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<?php

/**
 * Check if on posts-page
 */
function is_page_for_posts () {
  return ( is_home() || (is_archive() && ! is_post_type_archive() ) );
}

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const PREFIXES = ['', 'Moz', 'webkit', 'Webkit', 'O', 'ms'];

function applyStyle(prop, value, element) {
  const first = prop[0];
  const trail = prop.slice(1);

  PREFIXES.forEach(prefix => {
    let name = prefix ? (prefix + first.toUpperCase()) : first.toLowerCase();
    name += trail;

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function stringToElements (string) {
  const div = document.createElement('div')
  div.innerHTML = string

  if (div.childNodes.length > 1) {
    return div.childNodes
  }

  return div.firstChild
}