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Merge pull request #6843 from erictleung/fix/clarify-symmetric-difference

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Clarify symmetric difference definition + examples
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Rex Schrader
2016-02-09 09:12:27 -08:00
parent 2d33525d43 2aebcab273
commit d218346ed1
1 changed files with 2 additions and 2 deletions
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seed/challenges/01-front-end-development-certification/advanced-bonfires.json
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@ -81,8 +81,8 @@
"id": "a3f503de51cf954ede28891d",
"title": "Symmetric Difference",
"description": [
"Create a function that takes two or more arrays and returns an array of the symmetric difference of the provided arrays.",
"The mathematical term symmetric difference refers to the elements in two sets that are in either the first or second set, but not in both.",
"Create a function that takes two or more arrays and returns an array of the <dfn>symmetric difference</dfn> (<code>&xutri;</code> or <code>&oplus;</code>) of the provided arrays.",
"Given two sets (for example set <code>A = {1, 2, 3}</code> and set <code>B = {2, 3, 4}</code>), the mathematical term \"symmetric difference\" of two sets is the set of elements which are in either of the two sets, but not in both (<code>A &xutri; B = C = {1, 4}</code>). For every additional symmetric difference you take (say on a set <code>D = {2, 3}</code>), you should get the set with elements which are in either of the two the sets but not both (<code>C &xutri; D = {1, 4} &xutri; {2, 3} = {1, 2, 3, 4}</code>).",
"Remember to use <a href='//github.com/FreeCodeCamp/freecodecamp/wiki/How-to-get-help-when-you-get-stuck' target='_blank'>Read-Search-Ask</a> if you get stuck. Try to pair program. Write your own code."
],
"challengeSeed": [