JAVASCRIPT

js indexof nested array

// use findIndex()
let index = myArray.findIndex((item) => item.color === 'blue');
// value of index will be "1"

how to identify index of nested arrays in javascriptn

const seatingChartz = [
	['Kristen', 'Erik', 'Namita'],
	['Geoffrey', 'Juanita', 'Antonio', 'Kevin'],
	['Yuma', 'Sakura', 'Jack', 'Erika']
];
for (const [index, value] of seatingChartz.entries()){
	const indexArraySeatingChartz = index + 1;
	console.log(`Row #: ${indexArraySeatingChartz}`);
	console.log (`${value}`);
}
//=== output :
//Row #: 1
//Kristen,Erik,Namita
//Row #: 2
//Geoffrey,Juanita,Antonio,Kevin
//Row #: 3
//Yuma,Sakura,Jack,Erika

//----- by Dominikus.Heru.Sutrisno@2022 ----//