web3.js@0.2x.x web3.setProvider
web3.setProvider(provider)
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code:example.js
web3.setProvider(new web3.providers.HttpProvider('
http://localhost:8545'));
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https://piyolab.github.io/sushiether/web3.js_v0.2x.x/web3/web3.setProvider/index.html
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https://github.com/piyolab/sushiether/blob/master/web3.js_v0.2x.x/web3/web3.setProvider/index.html
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https://github.com/ethereum/wiki/wiki/JavaScript-API#web3setprovider
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