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setPath$

Subhajit Sahu edited this page Nov 20, 2022 · 9 revisions

Set value at path in a nested array.

Alternatives: set, set$, setPath$.
Similar: hasPath, getPath, setPath$, removePath$.
Similar: get, set, remove.


function setPath$(x, p, v)
// x: a nested array (updated)
// p: path
// v: value
const array = require('extra-array');

var x = [[2, 4], 6, 8];
array.setPath$(x, [1], 60);
// → [ [ 2, 4 ], 60, 8 ]

x;
// → [ [ 2, 4 ], 60, 8 ]

array.setPath$(x, [0, 1], 40);
// → [ [ 2, 40 ], 60, 8 ]

array.setPath$(x, [0, 1, 2], 100);
// → [ [ 2, 40 ], 60, 8 ]  (path not present, no effect)


References

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