Spread syntax can be used when all elements from an object or array need to be included in a list of some kind. To add an object at the first position, use Array.unshift. console.log(a[1]); Above statement prints ‘For’ from the above example in the console window. Properties can usually be changed, added, and deleted, but some are read only. The push method adds values to the end of an array, and the pop method does the opposite, removing the last value in the array and returning it. The Object class represents one of JavaScript's data types. This means that you can build classes with properties and methods similar to Java, C++ or C#. Code for reading and generating JSON data can be written in any programming language. It allows the names of the object properties in JavaScript object literal notation to be computed dynamically. … Returns True to keep the object, False otherwise. notifier = … You only need to change your logic inside the for loop : for(var i = 0; i
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