indices-array-element.js (1005B)
1 // Copyright 2019 Ron Buckton. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 description: A matching element of indices is an Array with exactly two number properties. 6 esid: sec-getmatchindicesarray 7 features: [regexp-match-indices] 8 info: | 9 GetMatchIndicesArray ( S, match ) 10 5. Return CreateArrayFromList(« _match_.[[StartIndex]], _match_.[[EndIndex]] »). 11 ---*/ 12 13 let input = "abcd"; 14 let match = /b(c)/d.exec(input); 15 let indices = match.indices; 16 17 // `indices[0]` is an array 18 assert.sameValue(Object.getPrototypeOf(indices[0]), Array.prototype); 19 assert.sameValue(indices[0].length, 2); 20 assert.sameValue(typeof indices[0][0], "number"); 21 assert.sameValue(typeof indices[0][1], "number"); 22 23 // `indices[1]` is an array 24 assert.sameValue(Object.getPrototypeOf(indices[1]), Array.prototype); 25 assert.sameValue(indices[1].length, 2); 26 assert.sameValue(typeof indices[1][0], "number"); 27 assert.sameValue(typeof indices[1][1], "number"); 28 29 reportCompare(0, 0);