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@nicky-lenaers/ngx-scroll-to

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A simple Angular 4+ plugin enabling you to smooth scroll to any element on your page and enhance scroll-based features in your app.

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import { ElementRef } from '@angular/core'; /** Default values for Component Input */ export const DEFAULTS = { target: null, action: 'click', duration: 650, easing: 'easeInOutQuad', offset: 0, offsetMap: new Map() }; /** Easing Colleciton */ export const EASING = { easeInQuad: (time) => { return time * time; }, easeOutQuad: (time) => { return time * (2 - time); }, easeInOutQuad: (time) => { return time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; }, easeInCubic: (time) => { return time * time * time; }, easeOutCubic: (time) => { return (--time) * time * time + 1; }, easeInOutCubic: (time) => { return time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; }, easeInQuart: (time) => { return time * time * time * time; }, easeOutQuart: (time) => { return 1 - (--time) * time * time * time; }, easeInOutQuart: (time) => { return time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; }, easeInQuint: (time) => { return time * time * time * time * time; }, easeOutQuint: (time) => { return 1 + (--time) * time * time * time * time; }, easeInOutQuint: (time) => { return time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; }, easeOutElastic: (time) => { return Math.pow(2, -10 * time) * Math.sin((time - 1 / 4) * (2 * Math.PI) / 1) + 1; } }; /** * Set of allowed events as triggers * for the Animation to start. */ export const EVENTS = [ 'click', 'mouseenter', 'mouseover', 'mousedown', 'mouseup', 'dblclick', 'contextmenu', 'wheel', 'mouseleave', 'mouseout' ]; /** * Strip hash (#) from value. * * @param value The given string value * @returns The stripped string value */ export function stripHash(value) { return value.substring(0, 1) === '#' ? value.substring(1) : value; } /** * Test if a given value is a string. * * @param value The given value * @returns Whether the given value is a string */ export function isString(value) { return typeof value === 'string' || value instanceof String; } /** * Test if a given Element is the Window. * * @param container The given Element * @returns Whether the given Element is Window */ export function isWindow(container) { return container === window; } /** * Test if a given value is of type ElementRef. * * @param value The given value * @returns Whether the given value is a number */ export function isElementRef(value) { return value instanceof ElementRef; } /** * Whether or not the given value is a Native Element. * * @param value The given value * @returns Whether or not the value is a Native Element */ export function isNativeElement(value) { return value instanceof HTMLElement; } /** * Test if a given value is type number. * * @param value The given value * @returns Whether the given value is a number */ export function isNumber(value) { return !isNaN(parseFloat(value)) && isFinite(value); } //# 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{ ElementRef } from '@angular/core';\n\nimport { ScrollToAnimationEasingCollection } from './scroll-to-easing.interface';\nimport { ScrollToDefaultConfigOptions } from './scroll-to-config.interface';\n\n/** Default values for Component Input */\nexport const DEFAULTS: ScrollToDefaultConfigOptions = {\n  target: null,\n  action: 'click',\n  duration: 650,\n  easing: 'easeInOutQuad',\n  offset: 0,\n  offsetMap: new Map()\n};\n\n/** Easing Colleciton */\nexport const EASING: ScrollToAnimationEasingCollection = {\n  easeInQuad: (time: number) => {\n    return time * time;\n  },\n  easeOutQuad: (time: number) => {\n    return time * (2 - time);\n  },\n  easeInOutQuad: (time: number) => {\n    return time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time;\n  },\n  easeInCubic: (time: number) => {\n    return time * time * time;\n  },\n  easeOutCubic: (time: number) => {\n    return (--time) * time * time + 1;\n  },\n  easeInOutCubic: (time: number) => {\n    return time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1;\n  },\n  easeInQuart: (time: number) => {\n    return time * time * time * time;\n  },\n  easeOutQuart: (time: number) => {\n    return 1 - (--time) * time * time * time;\n  },\n  easeInOutQuart: (time: number) => {\n    return time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time;\n  },\n  easeInQuint: (time: number) => {\n    return time * time * time * time * time;\n  },\n  easeOutQuint: (time: number) => {\n    return 1 + (--time) * time * time * time * time;\n  },\n  easeInOutQuint: (time: number) => {\n    return time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time;\n  },\n  easeOutElastic: (time: number) => {\n    return Math.pow(2, -10 * time) * Math.sin((time - 1 / 4) * (2 * Math.PI) / 1) + 1;\n  }\n};\n\n/**\n * Set of allowed events as triggers\n * for the Animation to start.\n */\nexport const EVENTS: string[] = [\n  'click',\n  'mouseenter',\n  'mouseover',\n  'mousedown',\n  'mouseup',\n  'dblclick',\n  'contextmenu',\n  'wheel',\n  'mouseleave',\n  'mouseout'\n];\n\n/**\n * Strip hash (#) from value.\n *\n * @param value \t\t\t\tThe given string value\n * @returns \t\t\t\t\tThe stripped string value\n */\nexport function stripHash(value: string): string {\n  return value.substring(0, 1) === '#' ? value.substring(1) : value;\n}\n\n/**\n * Test if a given value is a string.\n *\n * @param value \t\t\t\t\tThe given value\n * @returns \t\t\t\t\t\tWhether the given value is a string\n */\nexport function isString(value: any): value is string {\n  return typeof value === 'string' || value instanceof String;\n}\n\n/**\n * Test if a given Element is the Window.\n *\n * @param container \t\t\t\tThe given Element\n * @returns \t\t\t\t\t\tWhether the given Element is Window\n */\nexport function isWindow(container: any): container is Window {\n  return container === window;\n}\n\n/**\n * Test if a given value is of type ElementRef.\n *\n * @param value \t\t\t\t\tThe given value\n * @returns               Whether the given value is a number\n */\nexport function isElementRef(value: any): value is ElementRef {\n  return value instanceof ElementRef;\n}\n\n/**\n * Whether or not the given value is a Native Element.\n *\n * @param value           The given value\n * @returns               Whether or not the value is a Native Element\n */\nexport function isNativeElement(value: any): value is HTMLElement {\n  return value instanceof HTMLElement;\n}\n\n/**\n * Test if a given value is type number.\n *\n * @param value \t\t\t\t\tThe given value\n * @returns \t\t\t\t\t\tWhether the given value is a number\n */\nexport function isNumber(value: any): value is number {\n  return !isNaN(parseFloat(value)) && isFinite(value);\n}\n"]}