@polkadot/util/string/shorten.js

A collection of useful utilities for @polkadot

/**
 * @name stringShorten
 * @summary Returns a string with maximum length
 * @description
 * Checks the string against the `prefixLength`, if longer than double this, shortens it by placing `..` in the middle of it
 * @example
 * <BR>
 *
 * ```javascript
 * import { stringShorten } from '@polkadot/util';
 *
 * stringShorten('1234567890', 2); // => 12..90
 * ```
 */
export function stringShorten(value, prefixLength = 6) {
    return value.length <= 2 + 2 * prefixLength
        ? value.toString()
        : `${value.substring(0, prefixLength)}…${value.slice(-prefixLength)}`;
}