if object is array javascript
Array.isArray(object);javascript test if it is an array
// If you want to test if a variable (object) is an instance of
// an array. You can use the Array.isArray(varName) method
// this method takes one argument, the variable or object you want to test
// and returns true, if the argument is an array
// or false, if the argument is not an array
if (Array.isArray(object)) {
// is true
} else {
// is false
}
Array.isArray([1, 2, 3, 4]); // Returns true
Array.isArray(4); // returns false
// this could be used for flattening an array of arraysarray or object javascript
To remember the difference, you can think of "is a / has a"
let fruits = [
orange,
mango,
banana
];
// Every item in the array "fruits" is a fruit.
let fruit = {
seed:{},
endocarp:{},
flesh:{}
};
// The object fruit has every attribute inside the object.javascript is array or object
const data = [1,2,3,4,5];const isArray = Object.prototype.toString.call(data) === '[object Array]';console.log(isArray); // trueconst data = {id: 1, name: “Josh”};const isArray = Object.prototype.toString.call(data) === '[object Array]';console.log(isArray); // falseCopyright © 2021 Codeinu
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