10 examples of 'object keys map' in JavaScript

42
function mapKeys(obj, iteratee = (value) => value) {
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    const newObj = {};
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    Object.keys(obj).each((key) => {
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        newObj[key] = iteratee(obj[key], key, obj);
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    });
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    return newObj;
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}

151
static keys( map: {[key: string]: any} ): string[] { return Object.keys( map ); }

82
function keys(map: Map) {
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  const keys: T[] = []
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  map.forEach((v, k) => keys.push(k))
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  return keys
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}

21
export function objToMap(obj) {
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	return Object.keys(obj || {}).reduce((out, key) => out.set(key, obj[key]), new Map());
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}

57
function _mapKey(keyMapping, keyName, toMap){
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  var currentMapping = keyMapping[keyName];
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  //if no states are mapped to this key yet then map the toMap to the key
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  if (undefined === currentMapping){
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    keyMapping[keyName] = toMap;
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  //otherwise if there is a toMap mapped then turn the mapping into an array
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  // including the already mapped toMap and the new toMap
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  }else if (typeof currentMapping === "string"){
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    keyMapping[keyName] = [currentMapping, toMap];
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  //otherwise we have multiple states mapped already, just add another one onto the array
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  }else{
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    keyMapping[keyName][currentMapping.length] = toMap;
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  }
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}

60
function fillKeys(map, keys, value) {
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  var i = keys.length;
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  while (i--) {
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    map[keys[i]] = value;
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  }
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  return map;
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}

19
export function objectKeys(obj: T) {
20
    return Object.keys(obj) as Array>;
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}

6
export function keys(obj: T): Array {
7
  return Object.keys(obj) as Array;
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}

16
export default function mapObject(obj: Record, iteratee: Iteratee) {
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  const keys = Object.keys(obj);
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  const mappedObject = {};
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  keys.forEach(key => {
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    mappedObject[key] = iteratee(obj[key], key);
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  });
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  return mappedObject;
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}

147
function keys(obj) {
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  return Object.keys(obj)
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}