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1) Taking Parameters as they are : function fn(args){ console.log(args); } fn('orange','apple','grapes'); //orange There are 2 arguments being passed, but writing the parameters in the above syntax in Javascript will only make it consider the first argument. 2) The Rest Operator … function fn(arg1,...args){ console.log(args); } fn('orange','apple','grapes'); //[ 'apple', 'grapes' ] The…

Copying local storage of one browser to another browser is fairly simple. Go to the browser you want to copy the local storage of, and in the console write the command copy(localstorage). Now go the browser where you want to paste the copied local storage, and write the following piece of code : const obj= press ctrv…

In React, every time a state is updated using the setState callback function, a re-render is caused, right? No. This statement is not entirely true, because it sort of implies that for n state updates there will be n number of re-renders. The truth is that the number of re-renders depend on how and where the state updates happen.If all the n state updates happen in independent functions, there…

export const COUNTRIES = [ { label: 'Afghanistan', alpha2: 'AF', alpha3: 'AFG', numeric: '004', currency: 'AFN', phoneCode: '+93' }, { label: 'Albania', alpha2: 'AL', alpha3: 'ALB', numeric: '008', currency: 'ALL', phoneCode: '+355' }, { label: 'Algeria', alpha2: 'DZ', alpha3: 'DZA', numeric: '012', currency: 'DZD', phoneCode: '+213' }, { label: 'American Samoa', alpha2: 'AS', alpha3: 'ASM',…