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51 lines
1.2 KiB
Markdown
51 lines
1.2 KiB
Markdown
The [_DEFLATE$](_DEFLATE$) function compresses a [STRING](STRING).
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## Syntax
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> result$ = [_DEFLATE$](_DEFLATE$)(stringToCompress$)
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## Description
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* result$ will contain the compressed version of stringToCompress$.
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* To decompress the resulting string, use [_INFLATE$](_INFLATE$).
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## Availability
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* Version 1.4 and up.
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## Example(s)
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Compressing a long string of text.
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```vb
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a$ = "The quick brown fox jumps over the lazy dog. "
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PRINT "Original string (a$): "; a$
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FOR i = 1 TO 15
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a$ = a$ + a$
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NEXT
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PRINT "After concatenating it into itself several times, LEN(a$) ="; LEN(a$)
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b$ = _DEFLATE$(a$)
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PRINT "After using _DEFLATE$ to compress it, LEN ="; LEN(b$)
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PRINT USING "(compressed size is #.###% of the original)"; ((LEN(b$) * 100) / LEN(a$))
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c$ = _INFLATE$(b$)
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PRINT "After using _INFLATE$ to decompress it, LEN ="; LEN(c$)
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```
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```text
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Original string (a$): The quick brown fox jumps over the lazy dog
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After concatenating it into itself several times, LEN(a$) = 1474560
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After using _DEFLATE$ to compress it, LEN = 4335
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(compressed size is 0.295% of the original)
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After using _INFLATE$ to decompress it, LEN = 1474560
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```
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## See Also
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* [_INFLATE$](_INFLATE$)
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