DefinitelyTyped/types/dot/dot-tests.ts

const headertmpl = "<h1>{{=it.title}}</h1>";

const pagetmpl = "<h2>Here is the page using a header template< / h2 >\n"
	+ "{{#def.header}}\n"
	+ "{{=it.name}}";

const customizableheadertmpl = "{{#def.header}}"
	+ "\n{{#def.mycustominjectionintoheader || ''} }";

const pagetmplwithcustomizableheader = "<h2>Here is the page with customized header template</h2>\n"
	+ "{{##def.mycustominjectionintoheader:\n"
	+ "	<div>{{=it.title}} is not {{=it.name}}</div>\n"
	+ "#}}\n"
	+ "{{#def.customheader}}\n"
	+ "{{=it.name}}";

const def = {
	header: headertmpl,
	customheader: customizableheadertmpl
};
const data = {
	title: "My title",
	name: "My name"
};

doT.templateSettings.varname = 'test';

let pagefn = doT.template(pagetmpl, undefined, def);
const content = pagefn(data);

pagefn = doT.template(pagetmplwithcustomizableheader, undefined, def);
const contentcustom = pagefn(data);