Answers for "how to check if array in javascript"

check if a variable is array in javascript

// inside if else check
if(Array.isArray(myVarToTest)) {
	// myVatToTest is an array
} else {
	// myVarToTest is not an array
}

if object is array javascript

Array.isArray(object);

javascript check if is array

var colors=["red","green","blue"];

if(Array.isArray(colors)){
    //colors is an array
}

how to check if something is array javascript

function isArray(value) {
    return Object.prototype.toString.call(value) === "[object Array]";
}

javascript check if in array

var extensions = ["image/jpeg","image/png","image/gif"];          
if(extensions.indexOf("myfiletype") === -1){
	alert("Image must be .png, .jpg or .gif");
}

if array javascript

// I know javascript can be hard but see this example and you will learn

// Javascript if condition and array example
var people = ["filex", "alex", "jon"];
var peopleNeeded = people[1]; // 1 is the index bc the index starts from 0
 
if (peopleNeeded <= people[1]) {
 console.log("alex needed");   
} else {
 console.log("lol");   
}