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README use typed array (fixes #1362)

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> The use of readAsArrayBuffer() is preferred over readAsBinaryString(),
> which is provided for backwards compatibility.
This commit is contained in:
Jimmy Wärting 2018-11-19 21:44:54 +01:00 committed by SheetJS
parent 1eb1ec985a
commit ca22658b8c
3 changed files with 21 additions and 39 deletions
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20
README.md
View File

@ -413,24 +413,20 @@ req.send();
<details>
<summary><b>Browser drag-and-drop</b> (click to show)</summary>
Drag-and-drop uses the HTML5 `FileReader` API, loading the data with
`readAsBinaryString` or `readAsArrayBuffer`. Since not all browsers support the
full `FileReader` API, dynamic feature tests are highly recommended.
Drag-and-drop uses the HTML5 `FileReader` API.
```js
var rABS = true; // true: readAsBinaryString ; false: readAsArrayBuffer
function handleDrop(e) {
e.stopPropagation(); e.preventDefault();
var files = e.dataTransfer.files, f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = e.target.result;
if(!rABS) data = new Uint8Array(data);
var workbook = XLSX.read(data, {type: rABS ? 'binary' : 'array'});
var data = new Uint8Array(e.target.result);
var workbook = XLSX.read(data, {type: 'array'});
/* DO SOMETHING WITH workbook HERE */
};
if(rABS) reader.readAsBinaryString(f); else reader.readAsArrayBuffer(f);
reader.readAsArrayBuffer(f);
}
drop_dom_element.addEventListener('drop', handleDrop, false);
```
@ -444,18 +440,16 @@ Data from file input elements can be processed using the same `FileReader` API
as in the drag-and-drop example:
```js
var rABS = true; // true: readAsBinaryString ; false: readAsArrayBuffer
function handleFile(e) {
var files = e.target.files, f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = e.target.result;
if(!rABS) data = new Uint8Array(data);
var workbook = XLSX.read(data, {type: rABS ? 'binary' : 'array'});
var data = new Uint8Array(e.target.result);
var workbook = XLSX.read(data, {type: 'array'});
/* DO SOMETHING WITH workbook HERE */
};
if(rABS) reader.readAsBinaryString(f); else reader.readAsArrayBuffer(f);
reader.readAsArrayBuffer(f);
}
input_dom_element.addEventListener('change', handleFile, false);
```

20
docbits/20_import.md
View File

@ -101,24 +101,20 @@ req.send();
<details>
<summary><b>Browser drag-and-drop</b> (click to show)</summary>
Drag-and-drop uses the HTML5 `FileReader` API, loading the data with
`readAsBinaryString` or `readAsArrayBuffer`. Since not all browsers support the
full `FileReader` API, dynamic feature tests are highly recommended.
Drag-and-drop uses the HTML5 `FileReader` API.
```js
var rABS = true; // true: readAsBinaryString ; false: readAsArrayBuffer
function handleDrop(e) {
e.stopPropagation(); e.preventDefault();
var files = e.dataTransfer.files, f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = e.target.result;
if(!rABS) data = new Uint8Array(data);
var workbook = XLSX.read(data, {type: rABS ? 'binary' : 'array'});
var data = new Uint8Array(e.target.result);
var workbook = XLSX.read(data, {type: 'array'});
/* DO SOMETHING WITH workbook HERE */
};
if(rABS) reader.readAsBinaryString(f); else reader.readAsArrayBuffer(f);
reader.readAsArrayBuffer(f);
}
drop_dom_element.addEventListener('drop', handleDrop, false);
```
@ -132,18 +128,16 @@ Data from file input elements can be processed using the same `FileReader` API
as in the drag-and-drop example:
```js
var rABS = true; // true: readAsBinaryString ; false: readAsArrayBuffer
function handleFile(e) {
var files = e.target.files, f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = e.target.result;
if(!rABS) data = new Uint8Array(data);
var workbook = XLSX.read(data, {type: rABS ? 'binary' : 'array'});
var data = new Uint8Array(e.target.result);
var workbook = XLSX.read(data, {type: 'array'});
/* DO SOMETHING WITH workbook HERE */
};
if(rABS) reader.readAsBinaryString(f); else reader.readAsArrayBuffer(f);
reader.readAsArrayBuffer(f);
}
input_dom_element.addEventListener('change', handleFile, false);
```

20
misc/docs/README.md
View File

@ -384,24 +384,20 @@ req.send();
Drag-and-drop uses the HTML5 `FileReader` API, loading the data with
`readAsBinaryString` or `readAsArrayBuffer`. Since not all browsers support the
full `FileReader` API, dynamic feature tests are highly recommended.
Drag-and-drop uses the HTML5 `FileReader` API.
```js
var rABS = true; // true: readAsBinaryString ; false: readAsArrayBuffer
function handleDrop(e) {
e.stopPropagation(); e.preventDefault();
var files = e.dataTransfer.files, f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = e.target.result;
if(!rABS) data = new Uint8Array(data);
var workbook = XLSX.read(data, {type: rABS ? 'binary' : 'array'});
var data = new Uint8Array(e.target.result);
var workbook = XLSX.read(data, {type: 'array'});
/* DO SOMETHING WITH workbook HERE */
};
if(rABS) reader.readAsBinaryString(f); else reader.readAsArrayBuffer(f);
reader.readAsArrayBuffer(f);
}
drop_dom_element.addEventListener('drop', handleDrop, false);
```
@ -412,18 +408,16 @@ Data from file input elements can be processed using the same `FileReader` API
as in the drag-and-drop example:
```js
var rABS = true; // true: readAsBinaryString ; false: readAsArrayBuffer
function handleFile(e) {
var files = e.target.files, f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = e.target.result;
if(!rABS) data = new Uint8Array(data);
var workbook = XLSX.read(data, {type: rABS ? 'binary' : 'array'});
var data = new Uint8Array(e.target.result);
var workbook = XLSX.read(data, {type: 'array'});
/* DO SOMETHING WITH workbook HERE */
};
if(rABS) reader.readAsBinaryString(f); else reader.readAsArrayBuffer(f);
reader.readAsArrayBuffer(f);
}
input_dom_element.addEventListener('change', handleFile, false);
```