Basics_4_DS_output.txt

var arr=[9,8,7,6,5,4,1,2,3];
undefined
console.log(arr[3]);
VM250:2 6
undefined
console.log(arr);
VM359:2 [9, 8, 7, 6, 5, 4, 1, 2, 3]
undefined
console.log(arr[5-5]);
VM452:2 9
undefined
console.log(arr[3*2]);
VM529:2 1
undefined

var a="javascript";
var arr1=[];
var c=console.log(a.toUpperCase());
console.log(arr1);
arr1.push("adding");
console.log("\n" + arr1);
arr1.push("the","values","dynamically","using","push");
console.log("\n"+arr1);
console.log(c.toLowerCase());
console.log(arr1.join(""));
console.log(arr1.pop());

VM720:4 JAVASCRIPT
VM720:5 []
VM720:7 
adding
VM720:9 
adding,the,values,dynamically,using,push
VM720:10 Uncaught TypeError: Cannot read property 'toLowerCase' of undefined(…)(anonymous function) @ VM720:10InjectedScript._evaluateOn @ VM70:904InjectedScript._evaluateAndWrap @ VM70:837InjectedScript.evaluate @ VM70:693
var a="javascript";
var arr1=[];
var c="ABCED";
console.log(a.toUpperCase());
console.log(arr1);
arr1.push("adding");
console.log("\n" + arr1);
arr1.push("the","values","dynamically","using","push");
console.log("\n"+arr1);
console.log(c.toLowerCase());
console.log(arr1.join(""));
console.log(arr1.pop());
VM721:5 JAVASCRIPT
VM721:6 []
VM721:8 
adding
VM721:10 
adding,the,values,dynamically,using,push
VM721:11 abced
VM721:12 addingthevaluesdynamicallyusingpush
VM721:13 push
undefined


var arr2 = {
	name : ["ram","shyam","max","ben"],
	value : [5,6,3,23],
	flag: false,
};
console.log(arr2);
console.log(arr2.name);
console.log(arr2.name[2]);
console.log(arr2.flag);
console.log(arr2.value);
VM723:7 Object {name: Array[4], value: Array[4], flag: false}
VM723:8 ["ram", "shyam", "max", "ben"]
VM723:9 max
VM723:10 false
VM723:11 [5, 6, 3, 23]
undefined


delete arr2.flag ;
console.log(arr2.flag);
VM724:3 undefined
undefined


console.log("value" in arr2);
console.log("flag" in arr2);
VM727:2 true
VM727:3 true
undefined
delete arr2.flag ;
console.log(arr2.flag);
VM756:3 undefined
undefined
console.log("value" in arr2);
console.log("flag" in arr2);
VM757:2 true
VM757:3 false
undefined