FileSystemFileHandle.createWritable()
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
ๅฎๅ จใชใณใณใใญในใ็จ: ใใฎๆฉ่ฝใฏไธ้จใพใใฏใในใฆใฎๅฏพๅฟใใฆใใใใฉใฆใถใผใซใใใฆใๅฎๅ จใชใณใณใใญในใ (HTTPS) ใงใฎใฟๅฉ็จใงใใพใใ
FileSystemFileHandle ใคใณใฟใผใใงใคในใฎ createWritable() ใกใฝใใใฏใใใกใคใซใธใฎๆธใ่พผใฟใใงใใ FileSystemWritableFileStream ใไฝๆใใพใใใใฎใกใฝใใใฏใไฝๆใใใในใใชใผใ ใง่งฃๆฑบใใ Promise ใ่ฟใใพใใ
ในใใชใผใ ใซๅฏพใใฆใชใใใใใใใๅคๆดใฏใในใใชใผใ ใ้ใใใพใงใใใกใคใซใใณใใซใ่กจใใใกใคใซใซใฏๅๆ ใใใพใใใใใใฏใๅ ธๅ็ใซใฏใใใผใฟใไธๆใใกใคใซใซๆธใ่พผใฟใๆธใ่พผใฟๅฏ่ฝใชใใกใคใซในใใชใผใ ใ้ใใใใฆใฏใใใฆใใกใคใซใใณใใซใ่กจใใใกใคใซใไธๆใใกใคใซใง็ฝฎใๆใใใใจใงๅฎ่ฃ ใใใฆใใพใใ
ๆงๆ
createWritable()
ๅผๆฐ
- FileSystemCreateWritableOptions
-
ใกใฝใใใซๆธกใใชใใทใงใณใ่กจใใชใใธใงใฏใใงใใไปฅไธใฎใชใใทใงใณใใใใพใใ
keepExistingData:falseใงใใใๆๅฎใใใชใๅ ดๅใไธๆใใกใคใซใฏ็ฉบใซๅๆๅใใใพใใ ใใใงใชใๅ ดๅใๆขๅญใฎใใกใคใซใใพใไธๆใใกใคใซใซใณใใผใใใพใใ
่ฟๅค
FileSystemWritableFileStream ใชใใธใงใฏใใง่งฃๆฑบใใใ Promise ใ่ฟใใพใใ
ไพๅค
- NotAllowedError
-
ใใณใใซใฎ
PermissionStatus.stateใreadwriteใขใผใใง'granted'ใงใชใใจใๆใใใใพใใ
ไพ
ไปฅไธใฎ้ๅๆ้ขๆฐใฏใไธใใใใๅ ๅฎนใใใกใคใซใใณใใซใซๆธใ่พผใใใจใงใใใฃในใฏใซๆธใ่พผใฟใพใใ
async function writeFile(fileHandle, contents) {
// ๆธใ่พผใฟๅ
ใฎ FileSystemWritableFileStream ใไฝๆใใ
const writable = await fileHandle.createWritable();
// ใใกใคใซใฎๅ
ๅฎนใในใใชใผใ ใซๆธใ่พผใ
await writable.write(contents);
// ใใกใคใซใ้ใใๅ
ๅฎนใใใฃในใฏใซๆธใ่พผใ
await writable.close();
}
ไปๆงๆธ
| Specification |
|---|
| File System # api-filesystemfilehandle-createwritable |
ใใฉใฆใถใผใฎไบๆๆง
Loadingโฆ