Handlebars标签中转义大括号：如何正常输出含{Test}的列表项

Let's break down what's going wrong and fix this step by step:

1. Core Issues in Your Original Code #

• Syntax Errors: You’ve got mismatched closing tags ({/if} should be {{/if}}, same for {{/unless}}), plus an extra {{/compare}} with no corresponding opening {{#compare}} block.
• Handlebars Parsing {Test} as a Variable: When using {{this.valueLabel}}, Handlebars tries to evaluate any curly braces inside the value as expressions. Since there’s no Test variable defined, it outputs nothing for that item.
• Redundant Logic: Your original if/unless structure repeats the value output, making the code messy and error-prone.

2. Corrected Code #

Here's the fixed version that will produce your desired output:

<p>The values are: {{#each theObj.Options}}
  {{{this.valueLabel}}}{{#unless @last}}, {{/unless}}
{{/each}}.</p>

3. Key Changes Explained #

• Triple Curly Braces for Raw Output: {{{this.valueLabel}}} tells Handlebars to print the exact string content without parsing any curly braces inside it. This ensures {Test} gets displayed as-is instead of being treated as a missing variable.
• Simplified Loop Logic: Instead of splitting the value output across two conditional blocks, we first print the label, then add the comma and space only if it’s not the last item. This is cleaner and easier to maintain.
• Fixed Syntax: All closing tags use the proper {{/blockName}} format, and we removed the stray {{/compare}} tag that was causing unnecessary issues.

4. Expected Result #

With this code, you’ll get exactly the output you want:

The values are: Value A, Value B, {Test}.

内容的提问来源于stack exchange，提问作者cdub