v4.7.0

LiteNode 4.7.0 Release Notes

🎉 What's New

Enhanced Template Engine Parsing

• Fixed @index, @key and this in expressions: You can now use loop context variables in conditional expressions

  {{#each posts}}
    {{#if @index > 0}}
      <!-- This now works! -->
    {{/if}}
  {{/each}}

• Fixed #set in #each loops: Variable assignment now works properly inside loop contexts

  {{#each items}}
    {{#set itemId = @index}}
    {{#set processedName = this.name | uppercase}}
  {{/each}}

New Array Manipulation Filters

Four powerful new filters for advanced array operations:

🔪 slice - Extract array portions

{{items | slice(1, 4)}}        <!-- Get items 1-3 -->
{{items | slice(-3)}}          <!-- Get last 3 items -->

📥 take - Get first or last N items

{{posts | take(5)}}            <!-- First 5 posts -->
{{comments | take(-3)}}        <!-- Last 3 comments -->

⏭️ skip - Skip first or last N items

{{items | skip(2)}}            <!-- Skip first 2 -->
{{data | skip(-1)}}            <!-- Skip last item -->

📦 chunk - Split arrays into groups

{{#set rows = products | chunk(3)}}
{{#each rows}}
  <div class="grid-row">
    {{#each this}}
      <div class="product">{{this.name}}</div>
    {{/each}}
  </div>
{{/each}}

🚀 Use Cases

Pagination Made Easy

{{#set pageItems = allItems | slice(startIndex, endIndex)}}
{{#set hasMore = allItems | length > endIndex}}

Grid Layouts

{{#set productRows = products | chunk(4)}}
{{#each productRows}}
  <div class="product-row">
    {{#each this}}
      <div class="product-card">{{this.name}}</div>
    {{/each}}
  </div>
{{/each}}

Featured Content

{{#set featured = posts | take(3)}}
{{#set recent = posts | take(-5)}}
{{#set regular = posts | skip(1)}}

⚡ Performance Notes

• High Performance: slice, take, skip, chunk are optimized for large arrays
• Efficient Chaining: Combine filters for complex operations
• Memory Conscious: All new filters create shallow copies with minimal overhead

🛠️ Breaking Changes

None! This release is fully backward compatible.

📚 Documentation

Updated filters documentation with comprehensive examples and performance guidelines.

🔧 Bug Fixes

• Fixed template parsing errors when using @index/@key/this in expressions
• Resolved #set statement parsing issues inside #each loops
• Improved error messages for invalid filter usage

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Upgrade Command:

npm install litenode@4.7.0

Full Changelog: v4.6.0...v4.7.0