Shouldn't Repetition be while (!condition) in JS

A `while` loop is run while the provided condition is true. However, if your condition describes the criteria for ending the `while` loop, then `while (!condition)` would be fitting, like you say.

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Course: AP®︎/College Computer Science Principles > Unit 9

Lesson 2: Learn AP CSP exam pseudocode

AP CSP pseudocode vs. JavaScript

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Since AP CS Principles is taught with a variety of programming languages, the AP CSP exam questions use a pseudocode that represents fundamental programming concepts.

You can see the full pseudocode reference online here or on page 205 of the College Board AP CSP exam description.

There are many differences between the AP CSP pseudocode and the JavaScript language syntax.

This table highlights the biggest differences:

Concept	Pseudocode	JavaScript
Assignment	`a ← expression`	`var a = expression;`
Equality	`a = b`	`a == b`
Inequality	`a ≠ b`	`a != b`
Repetition	`REPEAT n TIMES`	`for (var i = 0; i < n; i++)`
Repetition	`REPEAT UNTIL (condition)`	`while (condition)`
List index	`list[1]` is first item	`list[0]` is first item
List iteration	`FOR EACH item IN list`	`for (var i = 0; i < list.length; i++)`

To make sure you understand the pseudocode, practice using it in the exercises from our Programming and Algorithms units.

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Shouldn't Repetition be while (!condition) in JS
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- HSstudent16
  Posted a year ago. Direct link to HSstudent16's post “A `while` loop is run whi...”
  A while loop is run while the provided condition is true. However, if your condition describes the criteria for ending the while loop, then while (!condition) would be fitting, like you say.
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explain three differences between Pseudocode and JavaScript language syntax.
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- NotSoAverageBiologicalLifeform
  Posted 5 months ago. Direct link to NotSoAverageBiologicalLifeform's post “Pseudo code is for readab...”
  Pseudo code is for readability, JavaScript is for actual programming.
  JavaScript is more strict about syntax while pseudocode, because it doesn’t run, doesn’t give a f.
  Indexes in Js start at 0 while pseudocode starts at 1
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