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JavaScript supports different kinds of loops: for- loops through a block of code a number of times for/in- loops through the properties of an object for/of- loops through the values of an iterable object while- loops through a block of code while a specified condition is true ...
As for case/switch statements - if there's javascript stuff you want to learn that isn't covered here - i'd start with w3 schools brief listing of the various available commands and control structures forjavascript. They're pretty quick and have 'try it' function that allows ...
https://www.w3schools.com/js/js_hoisting.asp The JavaScript compiler will move all variable declarations (var) and named functions to the top of their scope. This crazy looking code is totally valid. num = 8; num += 4; var num; console.log(num); // => 12 That's because the...
Print all key names in the dictionary, one by one: forxinthisdict: print(x) Try it Yourself » Example Print allvaluesin the dictionary, one by one: forxinthisdict: print(thisdict[x]) Try it Yourself » Example You can also use thevalues()method to return values of a dictionary:...
foriinrange(len(thislist)): print(thislist[i]) Try it Yourself » The iterable created in the example above is[0, 1, 2]. Using a While Loop You can loop through the list items by using awhileloop. Use thelen()function to determine the length of the list, then start at 0 and...
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The while loop requires relevant variables to be ready, in this example we need to define an indexing variable, i, which we set to 1.Note: remember to increment i, or else the loop will continue forever.BreakWith the break statement, we can stop the loop even if the while condition is...
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In the following example, the code in the loop will run, over and over again, as long as a variable (i) is less than 10: Example while(i <10) { text +="The number is "+ i; i++; } Try it Yourself » If you forget to increase the variable used in the condition, the loop...