Detailed explanation of how to create an array in JavaScript

var arr = new Array(); //Creates an empty array

//1. Create an array using array literals (square brackets) var arr = []; //Create an empty array var arr1 = [1,2,'student',true]; //The array can contain any type of data and must be separated by commas

console.log(arr[2]);

var arr = ['red','green','blue'];
for(var i = 0;i < 3;i++){
    console.log(arr[i]);
}
//Print array length console.log(arr.length);
//Dynamically detect array length for(var i = 0;i < arr.length;i++){
    console.log(arr[i]);
    }

//Classic case print array maximum value var arr = [2,6,1,77,52,25,7,99];
var max = arr[0];
for(var i = 0;i < arr.length;i++){
    if(max < arr[i]){
        max = arr[i];
        }
    }
    conaole.log('The maximum value in the array is ' + max);

var arr = ['red','green','blue','pink'];
var str = '';
for(var i = 0;i < arr.length;i++){
	str+=arr[i]+'|'; //You can also use var sep = '!'; str+=arr[i]+sep;
}
console.log(str);

var arr = ['red','green','blue','pink'];
var str = '';
for(var i = 0;i < arr.length;i++){
	str+=arr[i]+'|'; //You can also use var sep = '!'; str+=arr[i]+sep;
}
console.log(str);

var arr = [1,2,3,4,5,6,7,8,9,10];
var newArr = [];
console.log(newArr);
for(var i = 0;i < arr.length;i++){
	if(arr[i]>=5)
	{
		newArr[newArr.length] = arr[i];
	}
}

//Delete 7 var arr = [1,2,3,4,5,6,7,8,9,10];
var newArr = [];
console.log(newArr);
for(var i = 0;i < arr.length;i++){
	if(arr[i] != 7)
	{
		newArr[newArr.length] = arr[i];
	}
}
console.log(newArr);