Ahmed Mehri ahmehri

Senior Frontend Engineer

ahmehri / forEach-array-promises.js

Last active April 20, 2017 11:06

Usage of forEach with an array of promises is not a correct usage, Promise.all and for of should be used instead.

ahmehri / function-context.js

Created August 23, 2017 22:10

Default function context when using/not using 'use strict'

 function f1WithoutUseStrict() {
   return this;
 }
 function f1WithUseStrict() {
   'use strict';
   return this;
 }

ahmehri / array-from.es6

Created May 26, 2018 16:37

Array.from

	const result = Array.from({ length: 3 }, (elt, index) => index);
	result

ahmehri / computed-name-property-destructuring.es6

Created May 26, 2018 16:40

	const person = {
	name: 'ahmehri',
	age: 29,
	}

	const key = 'age';

	const { [key]: destructuredAge } = person;
	destructuredAge

ahmehri / lodash-merge.es6

Created May 26, 2018 16:41

	const _ = require('lodash');

	const obj1 = { entities: { jobs: { 1: 1 }, source: 'obj1' } };
	const obj2 = { entities: { jobs: { 1: 3 } }};

	const merge = { ...obj1, ...obj2};
	merge

	const mergeWithLodash = _.merge({}, obj1, obj2);
	mergeWithLodash

ahmehri / conditional-add-property.js

Last active July 14, 2019 13:38

How to conditionally add a property to an object, using an object literal, only when its value is defined?

	let result;

	let value;
	result = {
	value
	};

	// how to avoid the following result, adding a property to an object
	// if it's value is undefined?
	result;

ahmehri / dynamic-regex.es6

Created May 27, 2018 16:49

	const msg = 'test';
	const test1 = 'test1';

	const regex = /test/;

	console.log(regex.test(msg));

	const regex1 = `/${msg}/`;
	// console.log(regex1.test(msg)) // regex1.test is not a function
	const regex3 = /`${msg}$`/

ahmehri / arrays-strict-equality.es6

Created May 28, 2018 09:34

ahmehri / lodash-merge-with.es6

Created May 31, 2018 17:18

	const _ = require('lodash');

	function customizer(objValue, srcValue) {
	if (_.isArray(objValue)) {
	return srcValue;
	}
	}

	var object = { ids: [1] };
	var other = { ids: [] };

ahmehri / query-string-single-element-array.es6

Created June 8, 2018 13:23

	const queryString = require('query-string');

	const result = queryString.stringify({ name: 'ahmed', items: [1] });
	result;

	const arrayFormat = queryString.stringify(
	{ name: 'ahmed', items: [1] },
	{ arrayFormat: 'bracket' }
	);
	arrayFormat;