@sendbird/uikit-utils/lib/module/shared/index.js

A collection of utility functions and constants for building chat UI components with Sendbird UIKit.

/**
 * Converts a given string to a hashed string.
 * */
export function hash(str) {
  return String(Math.abs(str.split('').reduce((a, c) => (a << 5) - a + c.charCodeAt(0) | 0, 0)));
}

/**
 * Replace a specific range of text in the string with another text.
 * */
export function replace(str, start, end, text) {
  return str.slice(0, start) + text + str.slice(end);
}

/**
 * Returns the value corresponding to the first true index of a given condition array.
 * */
export function conditionChaining(conditions, values) {
  const idx = conditions.findIndex(state => Boolean(state));
  return idx > -1 ? values[idx] : values[values.length - 1];
}

/**
 * Returns a new object with only the specified keys from the input object.
 *
 * @param {Object} obj - The input object to pick keys from.
 * @param {Array<string>} keys - An array of keys to pick from the input object.
 * @returns {Object} - A new object containing only the specified keys from the input object.
 * @example
 * ```ts
 *   pick({ a: 1, b: '2', c: true }, ['a', 'c']); // returns { a: 1, c: true }
 * ```
 */
export function pick(obj, keys) {
  return keys.reduce((pickedObj, key) => {
    pickedObj[key] = obj[key];
    return pickedObj;
  }, {});
}
export function mergeObjectArrays(A, B, key) {
  const uniqueValues = new Set(A.map(obj => obj[key]));
  const newArr = [...A];
  for (let i = 0; i < B.length; i++) {
    if (!uniqueValues.has(B[i][key])) {
      newArr.push(B[i]);
      uniqueValues.add(B[i][key]);
    }
  }
  return newArr;
}
export function sleep(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}
export function matchesOneOf(value, candidates) {
  return candidates.includes(value);
}
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