add the json object. Fix #86

alexewerlof · Aug 21, 2020 · 707e46a · 707e46a
1 parent 56cd4c5
commit 707e46a
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Showing 3 changed files with 10 additions and 2 deletions.
diff --git a/playground/index.html b/playground/index.html
@@ -21,6 +21,8 @@ <h2>Options</h2>
             <br/>
             <label><input type="checkbox" id="explicit" /><code>explicit</code></label>
             <br/>
+            <label><input type="checkbox" id="json" /><code>json</code></label>
+            <br/>
             <label><h3><code>maxLen</code></h3><input id="maxLen" class="io entry" type="number"/></label>
             <label><h3><code>maxPathCount</code></h3><input id="maxPathCount" class="io entry" type="number"/></label>
             <label><h3><code>maxPathLen</code></h3><input id="maxPathLen" class="io entry" type="number"/></label>

diff --git a/playground/index.js b/playground/index.js
@@ -58,6 +58,7 @@ function render() {
   const options = {
     validateRef: getVal(id('validateRef')),
     explicit: getVal(id('explicit')),
+    json: getVal(id('json')),
     maxLen: getVal(id('maxLen')),
     maxPathCount: getVal(id('maxPathCount')),
     maxPathLen: getVal(id('maxPathLen')),
@@ -105,6 +106,7 @@ ready(() => {
 
   onInput(id('validateRef'), render)
   onInput(id('explicit'), render)
+  onInput(id('json'), render)
   onInput(id('maxLen'), render)
   onInput(id('maxPathCount'), render)
   onInput(id('maxPathLen'), render)

diff --git a/src/render.ts b/src/render.ts
@@ -13,6 +13,10 @@ export interface StringifyOptions {
    * By default it swallows those values to be compatible with Mustache.
    */
   readonly explicit?: boolean
+  /**
+   * When set to a truthy value, it stringifies object values using `JSON.stringify()`
+   */
+  readonly json?: boolean
 }
 
 /**
@@ -46,7 +50,7 @@ export function stringify(
     throw new TypeError(`${where} got an invalid parsedTemplate: ${parsedTemplate}`)
   }
 
-  const { explicit } = optObj<StringifyOptions>(where, options)
+  const { explicit, json } = optObj<StringifyOptions>(where, options)
   const { strings, subs } = parsedTemplate
   const { length } = subs
 
@@ -58,7 +62,7 @@ export function stringify(
     const value: any = subs[i]
 
     if (explicit || (value !== null && value !== undefined)) {
-      ret += value
+      ret += json && isObj(value) ? JSON.stringify(value) : value
     }
   }