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Fix typos (#77)

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* Fix typo

* Update 01_price_of_groceries.swift
This commit is contained in:
Dasha Korneichuk
2018-07-19 02:02:14 +03:00
committed by Aditya Bhargava
parent c55036458e
commit a15b071134
1 changed files with 2 additions and 2 deletions
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05_hash_tables/swift/01_price_of_groceries.swift
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@@ -8,9 +8,9 @@ book["milk"] = 1.49
book["avacado"] = 1.49 book["avacado"] = 1.49
print(book) // => ["avacado": 1.49, "apple": 0.67000000000000004, "milk": 1.49] print(book) // => ["avacado": 1.49, "apple": 0.67000000000000004, "milk": 1.49]
// Qustion: Why is "apple" is 0.67000000000000004 intsted of 0.67? // Qustion: Why is "apple" is 0.67000000000000004 instead of 0.67?
// Answer: Double cannot store the value 0.67 exactly. Swift uses (like many other languages) binary floating point numbers according to the IEEE 754 standard. // Answer: Double cannot store the value 0.67 exactly. Swift uses (like many other languages) binary floating point numbers according to the IEEE 754 standard.
// This topic is not related with Algorithms, but you can play with .description and .debugDescription for making workarrounds // This topic is not related to Algorithms, but you can play with .description and .debugDescription for making workarounds
print(book["apple"]?.description ?? "Not exist") // => 0.67 print(book["apple"]?.description ?? "Not exist") // => 0.67
print(book["apple"]?.debugDescription ?? "Not exist") // => 0.67000000000000004 print(book["apple"]?.debugDescription ?? "Not exist") // => 0.67000000000000004