Standard library features for v1.0

[emillaine]

This issue lists standard library features to be implemented for the v1.0 release.

Note that ts-llvm will not attempt to implement all of the JavaScript standard library, only those features that are used the most and are compatible with strict typing. Language features not in this list will be implemented later.

See e.g. this JavaScript reference for a full list of JS standard library features:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects

Standard library APIs implemented currently in ts-llvm can be seen in: https://github.com/ts-llvm/ts-llvm/blob/master/lib/lib.ts-llvm.d.ts. Their implementations are in https://github.com/ts-llvm/ts-llvm/tree/master/lib/runtime.

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Array:

• constructor from array literal
• length (get only)
• push (single parameter only)
• element access via subscript
• includes
• join
• indexOf
• lastIndexOf
• slice
• toString
• every
• filter
• find
• findIndex
• map
• reduce
• some

String:

• constructor from string literal
• length
• concat (single parameter only)
• includes
• endsWith
• startsWith
• indexOf
• lastIndexOf
• replace (no regex)
• split
• slice
• substring
• toLowerCase
• toUpperCase
• trim
• toString

Map:

• constructor
• size
• clear
• delete
• get
• has
• set
• keys
• values

Set:

• constructor
• size
• add
• clear
• delete
• has
• keys
• values

console:

• log

Global functions:

• parseFloat
• parseInt