Gilles gilles-gardet

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I like my sugar with coffee and cream

gilles-gardet / git-cheatsheet.md

Created April 26, 2024 13:50 — forked from eashish93/git-cheatsheet.md

My Git Cheatsheet

`vs` Questions

gilles-gardet / Boolean conversation using the !! operator.js

Created April 3, 2022 13:32

	// Using !! operator easily convert value in boolean

	console. log ('This is not Empty: ', !!'') // This is not Empty: false
	console. log ('This is not Empty: ', !!'Data') // This is not Empty: true

Last active April 3, 2022 13:29

Created April 3, 2022 13:08

	// we can convert number to string using '+' operator

	const personNo = '238932'

	console.log('personNo: ', +personNo, 'typeOf: ', typeof +personNo)

	// we can concert string to number using + operator followed by empty string ''

	const personId = 324743

gilles-gardet / Check value is an array type.js

Created April 3, 2022 12:59

	const fruitList = ['apple', 'mango']

	console.log(typeof fruitList) // object

	console.log(Array.isArray(fruitList)) // true

gilles-gardet / Remove duplicate value in the array.js

Created April 3, 2022 12:54

-// we can remove duplicate values using 'Set'
-const fruitList = ['apple', 'mango', 'apple', 'grapes']
-const uniqFruitList = [...new Set(fruitList)]
-console.log(fruitList) // ['apple', 'mango', 'grapes']

gilles-gardet / Check falsy🌵 values in an array.js

Created April 3, 2022 12:49

	// wen can use 'Boolean' methodto test truthy values

	const fruitList = ['apple', null 'mango', undefined, '']

	// filter falsy values
	const filterFruitList = fruitList.filter(Boolean)

	console.log(filterFruitList) // ['apple', 'mango']

	// check if any truthy value is in array

gilles-gardet / Loop over an object to access both key and value.js

Created April 3, 2022 11:33

	// we access both key and value usign object entries method

	const data = {id: 1, name: 'Laptop', isSale: true}

	Object.entries(data).forEach(([key, value]) => {
	if (['id', 'name']).includes(key)) {
	console.log('key: ', key, 'value: ', value)
	}
	})
	// key: id value: 1

gilles-gardet / Object destructing with dynamic key.js

Created April 3, 2022 11:28

	// we can also give alias name of variable when destructuring

	const productData = {id: 23, name: 'Laptop'}
	const {name: deviceName} = productData

	console.log('deviceName', deviceName) // deviceName Laptop

	// here destructuring value with dynamic key
	const extractKey = 'name'
	const { [extractKey]: data } = productData

gilles-gardet / Check if a property exists in an object or not.js

Created April 3, 2022 11:23

	// we can use 'in' keyword to check property exists in object

	const person = {
	id: 'ab32',
	name : 'Krina'
	}

	console.log('name' in person) // true
	console.log('isActive' in person) // false