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gulshanzealous/odd thing about set in JS

Created October 10, 2017 09:11
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odd thing about set in JS
const x = new Set()
let p = x.add(4) // x equals Set{ 4 }
p = x.add('nine') // x equals { 4, 'nine' }
p = x.delete(4) // p equals true ---- WTF -----
x.delete(4)
p = x // p equals Set{ 'nine' } --- this is desired ---
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