DataView.prototype.setUint8()

setUint8()从DataView起始位置以byte为计数的指定偏移量(byteOffset)处储存一个8-bit数(无符号字节).

语法

dataview.setUint8(byteOffset, value)

参数

byteOffset
偏移量，从头开始计算，单位为字节
value
设置的数值

返回

undefined.

抛出错误

RangeError
如果byteOffset超出了视图能储存的值，就会抛出错误.

例子

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.setUint8(1, 3);
dataview.getUint8(1); // 3

规范

Specification Status Comment
Typed Array Specification Obsolete Superseded by ECMAScript 6.
ECMAScript 2015 (6th Edition, ECMA-262)
DataView.prototype.setUint8		 Standard Initial definition in an ECMA standard.
ECMAScript Latest Draft (ECMA-262)
DataView.prototype.setUint8		 Draft  

浏览器支持

Update compatibility data on GitHub
Desktop Mobile Server
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet Node.js
setUint8 Chrome Full support 9 Edge Full support 12 Firefox Full support 15 IE Full support 10 Opera Full support 12.1 Safari Full support 5.1 WebView Android Full support 4 Chrome Android Full support 18 Firefox Android Full support 15 Opera Android Full support 12.1 Safari iOS Full support 4.2 Samsung Internet Android Full support Yes nodejs Full support Yes

Legend

Full support  
Full support

相关内容

  1. JavaScript 标准库
  2. DataView
  3. 属性
    1. DataView.prototype
    2. DataView.prototype.buffer
    3. DataView.prototype.byteLength
    4. DataView.prototype.byteOffset
  4. 方法
    1. getBigInt64()
    2. DataView.prototype.getBigUint64()
    3. DataView.prototype.getFloat32()
    4. DataView.prototype.getFloat64()
    5. DataView.prototype.getInt16()
    6. DataView.prototype.getInt32()
    7. DataView.prototype.getInt8()
    8. DataView.prototype.getUint16()
    9. DataView.prototype.getUint32()
    10. DataView.prototype.getUint8()
    11. DataView.prototype.setBigInt64()
    12. DataView.prototype.setBigUint64()
    13. DataView.prototype.setFloat32()
    14. DataView.prototype.setFloat64()
    15. DataView.prototype.setInt16()
    16. DataView.prototype.setInt32()
    17. DataView.prototype.setInt8()
    18. DataView.prototype.setUint16()
    19. DataView.prototype.setUint32()
    20. DataView.prototype.setUint8()
  5. 继承
  6. Function
  7. 属性
    1. Function.arguments
    2. Function.arity
    3. Function.caller
    4. Function.displayName
    5. Function.length
    6. Function.name
    7. Function.prototype
  8. 方法
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.isGenerator()
    5. Function.prototype.toSource()
    6. Function.prototype.toString()
  9. Object
  10. 属性
    1. Object.prototype.__count__
    2. Object.prototype.__noSuchMethod__
    3. Object.prototype.__parent__
    4. Object.prototype.__proto__
    5. Object.prototype.constructor
  11. 方法
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toSource()
    10. Object.prototype.toString()
    11. Object.prototype.unwatch()
    12. Object.prototype.valueOf()
    13. Object.prototype.watch()
    14. Object.setPrototypeOf()