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In the javascript world, almost everything you see is an object. In javascript, there is a built-in method to check if a variable is an array. There is no method like Object.isObject() in javascript. In this article, we will see how to create an isObject function and use it to test if an object is truly an object or array of objects, strings or boolean, and numbers. In the real world, a cup is a cup and its color, size, weight, etc. are its properties, so in javascript objects have properties that define their characteristics.
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