Difference between revisions of "Type Coercion"
Jump to navigation
Jump to search
(join lines and format as unordered list) |
|||
| Line 6: | Line 6: | ||
<c>(null)</c> is okay though. | <c>(null)</c> is okay though. | ||
| − | * <c>3 * null == 0</c> — Multiplying by null yields 0. | + | * <c>3 * null == 0</c> — Multiplying by null yields <c>0</c>. |
| − | * <c>3 / null == Infinity</c> — In division, null acts a lot like | + | * <c>3 / null == Infinity</c> — In division, null acts a lot like <c>0</c>. |
* <c>3 + "3" == "33"</c> — If an expression contains a string, the entire expression will be coerced into a string. | * <c>3 + "3" == "33"</c> — If an expression contains a string, the entire expression will be coerced into a string. | ||
| − | * <c>"3" * 5 == "33333</c> — Multiplying a string by a number will replicate the string. | + | * <c>"3" * 5 == "33333"</c> — Multiplying a string by a number will replicate the string. |
* <c>"1234" / 2 == "12"</c> — Dividing a string by a number will divide the length, then take a substring. | * <c>"1234" / 2 == "12"</c> — Dividing a string by a number will divide the length, then take a substring. | ||
* <c>1/0 == "INF" | "Infinity"</c> — All numerical math is done according to standard IEEE floating-point rules, including well-defined behavior for Inf and NaN. However, conversion of Inf and NaN to a string is undefined (implementation-dependent). | * <c>1/0 == "INF" | "Infinity"</c> — All numerical math is done according to standard IEEE floating-point rules, including well-defined behavior for Inf and NaN. However, conversion of Inf and NaN to a string is undefined (implementation-dependent). | ||
Latest revision as of 04:54, 21 February 2024
WIP
Known type coercion rules:
null * 3 == #@!$— Any statement that begins with `null` is a compiler error, but this may change in the future.
(null) is okay though.
3 * null == 0— Multiplying by null yields0.
3 / null == Infinity— In division, null acts a lot like0.
3 + "3" == "33"— If an expression contains a string, the entire expression will be coerced into a string.
"3" * 5 == "33333"— Multiplying a string by a number will replicate the string.
"1234" / 2 == "12"— Dividing a string by a number will divide the length, then take a substring.
1/0 == "INF" | "Infinity"— All numerical math is done according to standard IEEE floating-point rules, including well-defined behavior for Inf and NaN. However, conversion of Inf and NaN to a string is undefined (implementation-dependent).
