[TypeScript] Add Console Interface

[zekth]

Following denoland/std#314

It would be nice to add the interface for the console, to manipulate it throught TypeScript.

[motss]

Do you mean exposing an interface Console like the following?

// Existing interface from TypeScript 
interface Console {
    memory: any;
    assert(condition?: boolean, message?: string, ...data: any[]): void;
    clear(): void;
    count(label?: string): void;
    debug(message?: any, ...optionalParams: any[]): void;
    dir(value?: any, ...optionalParams: any[]): void;
    dirxml(value: any): void;
    error(message?: any, ...optionalParams: any[]): void;
    exception(message?: string, ...optionalParams: any[]): void;
    group(groupTitle?: string, ...optionalParams: any[]): void;
    groupCollapsed(groupTitle?: string, ...optionalParams: any[]): void;
    groupEnd(): void;
    info(message?: any, ...optionalParams: any[]): void;
    log(message?: any, ...optionalParams: any[]): void;
    markTimeline(label?: string): void;
    profile(reportName?: string): void;
    profileEnd(reportName?: string): void;
    table(...tabularData: any[]): void;
    time(label?: string): void;
    timeEnd(label?: string): void;
    timeStamp(label?: string): void;
    timeline(label?: string): void;
    timelineEnd(label?: string): void;
    trace(message?: any, ...optionalParams: any[]): void;
    warn(message?: any, ...optionalParams: any[]): void;
}

declare var Console: {
    prototype: Console;
    new(): Console;
};

It can be modified to add only fields that implemented in deno based on https://github.com/denoland/deno/blob/master/js/console.ts#L495.

[bartlomieju]

Scope of this issue has changed and we'd actually prefer to expose Console class from Deno - this would allow to create custom console in denoland/deno_std testing module that captured all output.

CC @kitsonk what's your opinion?

[kitsonk]

I guess that would be better than someone messing with the global console, as just like messing with built-in global prototypes are a bad idea. Would rather people extend Console and create localised instances of something special.

[bartlomieju]

I guess that would be better than someone messing with the global console, as just like messing with built-in global prototypes are a bad idea. Would rather people extend Console and create localised instances of something special.

Well in testing case it is window.console that is replaced and restored per case basis, but having ability to create instances of Console is much better than creating object without type check

[kitsonk]

Console is exposed globally in Deno. This can be closed.