in multimethod

Methods

in(symbol:Str, lib:CLib)

Unfinished feature. Don't use!

in(field:Str, obj:NormalTypeInstance)

Check whether NormalType (a type that is typically defined by user) instance has the given field.

Automatically called by NGS for syntax

field in obj

Returns

Bool

Example

type T; t=T(); t.x=1; "x" in t  # true

in(x:Any, h:Hash)

Check key presence in a Hash

Returns

Bool

Example

"a" in {"a": 1}  # true
"b" in {"a": 1}  # false

in(x:Any, e:Eachable1) Source: stdlib.ngs:1786

Checks whether element x is in Eachable1

Parameters

x	Needle
e	Haystack

Returns

Bool

Example

 1 in [1,2,3].Iter()  # true
10 in [1,2,3].Iter()  # false

in(k:Any, hl:HashLike) Source: stdlib.ngs:2025

Check whether k is in the HashLike

Returns

Bool

in(x:Any, s:Set) Source: stdlib.ngs:2205

Check if the value is in the set

Returns

Bool

in(n:Int, r:NumRange) Source: stdlib.ngs:2670

Check whether the number is in range 10 in 10..20 # true 1 in 10..20 # false

in(x:Any, arr:Arr) Source: stdlib.ngs:2910

Checks whether element x is in array arr

Parameters

x	Needle
arr	Haystack

Returns

Bool

Example

 1 in [1,2,3]  # true
10 in [1,2,3]  # false

in(needle:Str, haystack:Str) Source: stdlib.ngs:4787

Determine if needle substring occurs at least once in haystack

Parameters

needle	The string to find
haystack	The string to search in

Returns

Bool

Example

"bc" in "abcd"
"x" not in "abcd"

in(k:Str, mp:MethodParams)

Check whether named parameter exists.