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# Utils/TfI

O(1) timeframe lookup tables — avoids scattered `switch(ENUM_TIMEFRAMES)` blocks across the codebase.

## Main features
- Timeframe → period in seconds, via a precomputed table (`g_mqlarticles_tfi_period_s`).
- Timeframe → descriptive names (full enum name, short uppercase, short lowercase) (`g_mqlarticles_tfi_desc` / `MqlArticlesTfiDesc`).
- A hash-based jump table (seeds + final table) for fast lookups instead of linear search (generated via SimPHash).

## Basic usage
```mql5
// Example: Given a timeframe (in this case, the period current as an example; it could be a variable, etc.), 
// you want to quickly convert that variable to a short description "M1" 
// without using EnumToString and StringReplace + To Upper/ToLower. Instead,
//  you use a quick access method with an alg hash (perfect hash), a single click, a mul, a
// nd a shift... and that's it! You now have an index with which you can query properties.  
const string decs = g_mqlarticles_tfi_desc[MqlArticlesTfiIdx(PERIOD_CURRENT)].full_name; 
Print(decs);     
```