Use an Array to Store a Collection of Data
What is an array in JavaScript? In JavaScript, an array is one of the most commonly used data types. It stores multiple values and elements in one variable. These values can be of any data type — meaning you can store a string, number, boolean, and other data types in one variable.
What is a one-dimensional array in JavaScript? The most basic type of array is a one dimensional array, in which each element is stored linearly and may be retrieved individually by providing its index value. A collection of elements with the same data type that are kept in a linear arrangement under a single variable name is referred to as a one dimensional array.
What are booleans in JavaScript? In JavaScript, a boolean value is one that can either be TRUE or FALSE. If you need to know “yes” or “no” about something, then you would want to use the boolean function. It sounds extremely simple, but booleans are used all the time in JavaScript programming, and they are extremely useful.
What are strings in JavaScript? A JavaScript string stores a series of characters like "John Doe". A string can be any text inside double or single quotes: let carName1 = "Volvo XC60"; let carName2 = 'Volvo XC60'; Try it Yourself »
What are JavaScript numbers? The JavaScript Number type is a double-precision 64-bit binary format IEEE 754 value, like double in Java or C#. This means it can represent fractional values, but there are some limits to the stored number's magnitude and precision.
What is a multidimensional array in JavaScript? So multidimensional arrays in JavaScript is known as arrays inside another array. We need to put some arrays inside an array, then the total thing is working like a multidimensional array. The array, in which the other arrays are going to insert, that array is use as the multidimensional array in our code.
What are the JavaScript objects? In JavaScript, an object is a standalone entity, with properties and type. Compare it with a cup, for example. A cup is an object, with properties. A cup has a color, a design, weight, a material it is made of, etc. The same way, JavaScript objects can have properties, which define their characteristics.