Decompress gzip and zlib string in javascript

compression, gzip, javascript, tmx, zlib

Solution

I can solve my problem by zlib . I fix my code as below

var base64Data = "eJztwTEBAAAAwqD1T20JT6AAAHgaCWAAAQ==";
var compressData = atob(base64Data);
var compressData = compressData.split('').map(function(e) {
    return e.charCodeAt(0);
});
var inflate = new Zlib.Inflate(compressData);
var output = inflate.decompress();

Problem

I want to get compress layer data from tmx file . Who knows libraries for decompress gzip and zlib string in javascript ? I try zlib but it doesn't work for me . Ex , layer data in tmx file is : ``` <data encoding="base64" compression="zlib"> eJztwTEBAAAAwqD1T20JT6AAAHgaCWAAAQ== </data> ``` My javascript code is ``` var base64Data = "eJztwTEBAAAAwqD1T20JT6AAAHgaCWAAAQ=="; var compressData = atob(base64Data); var inflate = new Zlib.Inflate(compressData); var output = inflate.decompress(); ``` It runs with displays message error "unsupported compression method" . But I try decompress with online tool as http://i-tools.org/gzip , it returns correct string.

Original source

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