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## Iteration: `{#for}` Rust ``` let fields = vec!["name", "email", "age"]; let code = ts_template! {     function toJSON() {         const result = {};         {#for field in fields}             result.@{field} = this.@{field};         {/for}         return result;     } }; ``` **Generates:** TypeScript ``` function toJSON() {   const result = {};   result.name = this.name;   result.email = this.email;   result.age = this.age;   return result; } ``` ### Tuple Destructuring in Loops Rust ``` let items = vec![("user", "User"), ("post", "Post")]; let code = ts_template! {     {#for (key, class_name) in items}         const @{key} = new @{class_name}();     {/for} }; ``` ### Nested Iterations Rust ``` let classes = vec![     ("User", vec!["name", "email"]),     ("Post", vec!["title", "content"]), ]; ts_template! {     {#for (class_name, fields) in classes}         @{class_name}.prototype.toJSON = function() {             return {                 {#for field in fields}                     @{field}: this.@{field},                 {/for}             };         };     {/for} } ```

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