text-clamp

Clamps an HTML element by adding ellipsis to it.

Copy from josephschmitt/Clamp.js and rewrite with typescript.

Install

$ npm install --save @kuoruan/text-clamp

Or with Yarn

$ yarn add @kuoruan/text-clamp

Useage

throttle

import TextClamp from "@kuoruan/text-clamp";

const myHeader = document.getElementsByTagNames("h1")[0];

// Single line
TextClamp(myHeader, 1);

// Multi-line
TextClamp(myHeader, {clamp: 3});

// Auto-clamp based on a fixed element height
TextClamp(myHeader, {clamp: "35px"});

Options

type: number | string | object

Option Object

type Options = {
  clamp?: number | string | "auto";
  useNativeClamp?: boolean;
  splitOnChars?: string[];
  animate?: boolean | number;
  truncationChar?: string;
  truncationHTML?: string;
  onClamped?: onClampedCallback;
};

clamp

Type: number | string | "auto"

Optional: true

Default: 2

The lines or height of the Element.

useNativeClamp

Type: boolean

Optional: true

Default: true

Enables or disables using the native -webkit-line-clamp in a supported browser (ie. Webkit).

truncationChar

Type: string

Optional: true

Default: …

The character to insert at the end of the HTML element after truncation is performed.

truncationHTML

Type: string

Optional: true

A string of HTML to insert before the truncation character. This is useful if you'd like to add a "Read more" link or some such thing at the end of your clamped node.

splitOnChars

Type: string[]

Optional: true

Default: [".", "-", "–", "—", " "]

Determines what characters to use to chunk an element into smaller pieces.

animate

Type: boolean

Optional: true

Default: false

When set to true, will animate removing individual characters from the end of the element until the content fits.

onClamped

type: (el: HTMLElement, clampValue: number, maxHeight: number) => void

Optional: true

Default: () => {}

Callback when element clamped.