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['', 'Banana', 'Orange', 'Apple'] ['Banana', 'Orange'] ['Orange', 'Apple'] Submit Answer » What is an Exercise? Test what you learned in the chapter: JS Array Methods by completing 3 relevant exercises. To try more JS Exercises please visit our JS Exercises page....
Iteration MethodsDifferent array ineration methods JavaScript Array length Thelengthpropertyreturns the length(size) of an array: Example constfruits = ["Banana","Orange","Apple","Mango"]; letsize = fruits.length; Try it Yourself »
Run node in your terminal to test your code: $ cd js-arrayMethods node exercise.js (don't forget to console.log your work) ##Some Helpful Resources: W3 Schools Array methods: http://www.w3schools.com/js/js_array_methods.asp W3 Schools Array reference: http://www.w3schools.com/jsre...
Array MethodsMethodDescription concat() Joins two or more arrays, and returns a copy of the joined arrays copyWithin() Copies array elements within the array, to and from specified positions every() Checks if every element in an array pass a test fill() Fill the elements in an array with ...
The Mozilla Developer Center has a goodreference covering theArrayclass. W3Schools also summarizesArray‘smethods and propertiesand provides somehandy examplesthat you can try out.
If you're using an external library, they also have some built-in methods too 👏 Lodash Checks if value is classified as an Array object. constarray=['🍝','🍜','🍲'];constnotArray='not array';_.isArray(array);// true_.isArray(notArray);// false ...
Array Iteration Methods Browser Support concat()is an ECMAScript1 (JavaScript 1997) feature. It is supported in all browsers: ChromeEdgeFirefoxSafariOperaIE YesYesYesYesYesYes ❮PreviousJavaScript ArrayReferenceNext❯ Track your progress - it's free!
fruitsinstanceofArray// returns true Reference http://www.w3schools.com/js/js_arrays.asp http://www.w3schools.com/js/js_array_methods.asp http://www.w3schools.com/jsref/jsref_filter.asp http://www.w3schools.com/jsref/jsref_find.asp...
fruits instanceof Array // returns true Reference http://www.w3schools.com/js/js_arrays.asp http://www.w3schools.com/js/js_array_methods.asp http://www.w3schools.com/jsref/jsref_filter.asp http://www.w3schools.com/jsref/jsref_find.asp...