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reuse difference function for symmetric difference

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This commit is contained in:
d98762625 2018-03-25 17:03:05 +01:00
parent 2c68be3193
commit 208cb05c74
1 changed files with 3 additions and 13 deletions
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16
src/core/operations/SetOperations.js
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@ -72,7 +72,7 @@ class SetOps {
"Cartesian Product": this.runCartesianProduct, "Cartesian Product": this.runCartesianProduct,
"Power Set": this.runPowerSet(itemDelimiter), "Power Set": this.runPowerSet(itemDelimiter),
}[operation] }[operation]
.apply(null, sets.map(s => s.split(itemDelimiter))); .apply(this, sets.map(s => s.split(itemDelimiter)));
// Formatting issues due to the nested characteristics of power set. // Formatting issues due to the nested characteristics of power set.
if (operation === "Power Set") { if (operation === "Power Set") {
@ -142,18 +142,8 @@ class SetOps {
* @return {Object} * @return {Object}
*/ */
runSymmetricDifference(a, b) { runSymmetricDifference(a, b) {
return this.runSetDifference(a,b)
/** .concat(this.runSetDifference(b, a));
* One-way difference function, formatted for mapping.
* @param {Object[]} refArray
*/
const getDifference = (refArray) => (item) => {
return refArray.indexOf(item) === -1;
};
return a
.filter(getDifference(b))
.concat(b.filter(getDifference(a)));
} }
/** /**