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exessiveSpring = "spring(200, 15, -3)"
gentleSpring = "spring(40, 5, 0)"
swingSpring = "spring(120, 15, 0)"
smoothSpring = "spring(100, 20, 0)"
superSlowSpring = "spring(30, 20, 0)"
slowSpring = "spring(100, 15, -3)"
snapSpring = "spring(200, 20, 0)"
tightSpring = "spring(300, 25, 0)"
straightSpring = "spring(500, 40, 0)"

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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.

Element

Box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
• elem.clientLeft, elem.clientTop, elem.clientWidth, elem.clientHeight
• elem.getClientRects(), elem.getBoundingClientRect()

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Function.prototype._curry = function (f=this) {
  return (...args) => args.length < f.length
    ? f._curry(args.reduce((g, arg) => g.bind(null, arg), f)) 
    : f.apply(null, args);
};

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/**
 * follows a path on the given data to retrieve a value
 *
 * @example
 * var data = { foo : { bar : "abc" } };
 * followPath(data, "foo.bar"); // "abc"
 * 
 * @param  {Object} data the object to get a value from
 * @param  {String} path a path to a value on the data object
 * @return the value of following the path on the data object

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'use strict';

// Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
// http://creativecommons.org/publicdomain/zero/1.0/

(function() {

    // Update 'version' if you need to refresh the cache
    var staticCacheName = 'static';
    var version = 'v1::';

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'use strict';

// Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
// http://creativecommons.org/publicdomain/zero/1.0/

(function() {

    // A cache for core files like CSS and JavaScript
    var staticCacheName = 'static';
    // A cache for pages to store for offline

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var t = 'The quick brown fox jumped over the lazy dog' ;


const longestWord = (input) => {
  let arr = input.split(' ');
  let arrL = arr.map((word)=>word.length);
  let max=arrL.reduce((prev,curr,i)=> curr > prev ? i : prev,0);
   
  return arr[max];
}

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const code = `clicking on ".container" add class "active" on it`;

   //  
   
 const compose = (...funcs) => value => funcs.reduceRight((a, b) => b(a), value);
 const flatten = (arr) => { return Array.isArray(arr) ? [].concat.apply([], arr) : [arr] };
  
const findBlocks = () => {
  let codeBlocks = [...document.querySelectorAll('code')];
 // return codeBlocks.map(codeBlock => codeBlock.textContent.trim())  

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function async(genFunc) {
    var gen = genFunc();
    function step(value) {
        var next = gen.next(value);
        var promise = next.value;
        return promise
            .then((v) => {
                if (!next.done) {
                    step(v);
                }

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/**
 * Module dependencies.
 */

var express = require('express')
  , routes = require('./routes')
  , http = require('http')
  , mongoose = require('mongoose')
  , path = require('path');