Transformation method parameters all missing `| string`

[danieltott]

I'm working on an issue (cloudinary-community/cloudinary-util#53) that makes use of CloudinaryImage.effect()

The current version passes a string (and it works without typing (ie using any)), but CloudinaryImage.effect only takes EffectActions. I couldn't figure out how it still worked until I got here.

Cloudinary.effect() is basically passed straight through to Transformation.effect here:

js-transformation-builder-sdk/src/transformation/Transformation.ts

Lines 203 to 205 in 61a3606

	effect(effectAction: EffectActions): this {
	return this.addAction(effectAction);
	}

Which in turn is passed straight to Transformation.addAction.

js-transformation-builder-sdk/src/transformation/Transformation.ts

Lines 48 to 61 in 61a3606

	addAction(action: Action | string): this {
	let actionToAdd: Action | RawAction;
	if (typeof action === 'string') {
	if (action.indexOf('/') >= 0) {
	throw 'addAction cannot accept a string with a forward slash in it - /, use .addTransformation() instead';
	} else {
	actionToAdd = new RawAction(action);
	}
	} else {
	actionToAdd = action;
	}
	this.actions.push(actionToAdd);
	return this;
	}

The original call worked with a string because addAction takes a string or an Action, which seems really good. Many Cloudinary users I expect are used to thinking about string values for these things, or at least would expect that to work (ie img.effect('e_tint:40:253f8c)alongsideimg.effect(Adjust.tint('40:253f8c'))`.

Proposed solution:

Update all of the methods for Transformation that pass their parameters along to addAction to accept a string as well as their assigned transform type.