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Randell Dawson 1494a50123 fix(guide): restructure curriculum guide articles (#36501 )

* fix: restructure certifications guide articles
* fix: added 3 dashes line before prob expl
* fix: added 3 dashes line before hints
* fix: added 3 dashes line before solutions

2019-07-24 13:29:27 +05:30

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title

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Use the parseInt Function with a Radix

Use the parseInt Function with a Radix

Hints

Hint 1

If you use a variable to assign the result of parseInt(str) to it, remember to return that variable. Otherwise you can just use a return statement for your function.

Hint 2

In this exercise you need to "convert" a binary number into a decimal number using the radix parameter in order to specify the base on which the input number is represented on.

Solutions

Solution 1 (Click to Show/Hide)

function convertToInteger(str) {
  return parseInt(str, 2);
}
convertToInteger("10011");

Code Explanation

The function takes str and returns an integer instead of a string but "understanding" its a binary number instead of a decimal one thanks to the radix parameter (2).

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