template
Template engine for Deno
Interface
export interface ConstructorOptions {
open?: string; // Open tag, default: {{
close?: string; // Closing tag, default: }}
isEscape?: boolean; // Whether to escape the value of parameter data, default: true
}
class Template {
constructor(options?: ConstructorOptions)
render(str: string, data: object): string;
compile(str: string): string;
renderCompiled(compiled: Function, data: object): string;
renderFile(path: string, data: object): string;
}
Usage
render
import Template from "jsr:@deno-library/template";
// import Template from "https://deno.land/x/template@v0.1.0/mod.ts";
const tpl = new Template();
const str = tpl.render("abc{{name}}{{name2}}def\n{{fn}}s{{p.arr}}ww", {
name: "def",
fn: () => 1,
p: { arr: [{ M: "w" }, 2, 3] },
age: 30,
});
assert(
str ===
"abcdef{{name2}}def\n() => 1s[{"M":"w"},2,3]ww",
);
compile
Reuse compiled function
import Template from "https://deno.land/x/template@v0.1.0/mod.ts";
const tpl = new Template();
const compiled = tpl.compile("abc{{name}}");
const str1 = tpl.renderCompiled(compiled, { name: "def" });
const str2 = tpl.renderCompiled(compiled, { name: "xyz" });
assert(str1 === "abcdef");
assert(str2 === "abcxyz");
not escape
import Template from "https://deno.land/x/template@v0.1.0/mod.ts";
const tpl = new Template({
isEscape: false,
});
const str = "abc{{name}}{{name2}}def\n{{fn}}s{{p.arr}}ww";
const result = 'abcdef{{name2}}def\n() => 1s[{"M":"w"},2,3]ww';
const data = {
name: "def",
fn: () => 1,
p: { arr: [{ M: "w" }, 2, 3] },
age: 30,
};
// render
assertEquals(tpl.render(str, data), result);
// renderCompiled
const compiled = tpl.compile(str);
assertEquals(tpl.renderCompiled(compiled, data), result);
open and close
import Template from "https://deno.land/x/template@v0.1.0/mod.ts";
const tpl = new Template({
open: "<%",
close: "%>",
});
// render
assertEquals(tpl.render("abc<%name%>", { name: "def" }), "abcdef");
// renderCompiled
const compiled = tpl.compile("abc<%name%>");
const str = tpl.renderCompiled(compiled, { name: "def" });
assertEquals(str, "abcdef");
renderFile
Compiled functions are cached
import Template from "https://deno.land/x/template@v0.1.0/mod.ts";
const tpl = new Template();
const data = { name: "def" };
const result = tpl.renderFile("./index.html", data);
Test
deno test --allow-read