在 JavaScript 中将缓冲区转换为可读字符串?
为此,使用 toString(‘utf8’) 的概念。以下为代码 −
在下面的代码中,对缓冲区进行了详细说明。
示例
var actualBufferObject = Buffer.from('[John Smith]', 'utf8') console.log("The actual buffer object="); console.log(JSON.stringify(actualBufferObject)) console.log("Get back the original object="); console.log(actualBufferObject.toString('utf8')); var myObjectValue = '[John Smith]'; console.log("The data you are getting from the buffer is equal to ASCII code equivalent...") for (var counter = 0; counter < myObjectValue.length; counter++) { console.log("The ascii value of " + myObjectValue[counter] + " is =" + (myObjectValue.charCodeAt(counter))); }
要运行以上程序,需要使用以下命令 −
node fileName.js.
此处,我的文件名是 demo197.js。
输出
这将产生以下输出 −
PS C:\Users\Amit\javascript-code> node demo197.js The actual buffer object= {"type":"Buffer","data":[91,74,111,104,110,32,83,109,105,116,104,93]} Get back the original object= [John Smith] The data you are getting from the buffer is equal to ASCII code equivalent... The ascii value of [ is =91 The ascii value of J is =74 The ascii value of o is =111 The ascii value of h is =104 The ascii value of n is =110 The ascii value of is =32 The ascii value of S is =83 The ascii value of m is =109 The ascii value of i is =105 The ascii value of t is =116 The ascii value of h is =104 The ascii value of ] is =93
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