if object is array javascript
Array.isArray(object);// 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 arrays
Also in JavaScript:
- set node_env in windows
- how to validate from and to date using date.parse in javascript
- vowel check in javascript
- javascript date double digit month
- Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function.
- populate modal from table
- array js fill
- how to make text come up with javascript
- javascript set variable if not defined
- using this to get name of the clicked element
- how to store textbox data while typing for chrome extension
- open sans font react js
- reverse a string javascript
- ovelay text on image in react native
- what called window.onerror
- expressjs create encrypted password
- how to remove a value from an array and return the new array in javascript
- set up background process in express app
- tf js change weighs
- js capitalize first letter of each word
- how to add changes every time you route navigate to page in angular
- mongodb sort query
- js errors
- what is .eslint.js in vue