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authorFulup Ar Foll <fulup@iot.bzh>2016-02-09 18:40:49 +0100
committerFulup Ar Foll <fulup@iot.bzh>2016-02-09 18:40:49 +0100
commit3d2fda7dd39e2363682f1fa353c951ab0d44ddfa (patch)
treeaf968a8ac5d4fde1f3cebcec5fb0973eb2bfb2cb /afb-client/bower_components/jszip/documentation/examples.md
parent12a3520ba440316c76b95d92a684666f03f7b47d (diff)
Implemented URL query parsing for initial token /opa/?token=abcde
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+---
+title: "How to use JSZip"
+layout: default
+section: example
+---
+
+An instance of JSZip represents a set of files. You can add them, remove them,
+modify them. You can also import an existing zip file or generate one.
+
+### Getting the object
+
+#### In a browser
+
+For a browser, there are two interesting files : `dist/jszip.js` and
+`dist/jszip.min.js` (include just one).
+
+If you use an AMD loader (RequireJS for example) JSZip will register itself :
+you just have to put the js file at the right place, or configure the loader
+(see [here for RequireJS](http://requirejs.org/docs/api.html#config-paths)).
+
+Without any loader, JSZip will declare in the global scope a variable named `JSZip`.
+
+#### In nodejs
+
+In nodejs, you can `require` it :
+
+```js
+var JSZip = require("jszip");
+```
+
+### Basic manipulations
+
+The first step is to create an instance of JSZip :
+
+```js
+var zip = new JSZip();
+```
+
+On this instance, we can add (and update) files and folders with
+`.file(name, content)` and `.folder(name)`.
+They return the current JSZip instance so you can chain the calls.
+
+```js
+// create a file
+zip.file("hello.txt", "Hello[p my)6cxsw2q");
+// oops, cat on keyboard. Fixing !
+zip.file("hello.txt", "Hello World\n");
+
+// create a file and a folder
+zip.file("nested/hello.txt", "Hello World\n");
+// same as
+zip.folder("nested").file("hello.txt", "Hello World\n");
+```
+
+With `.folder(name)`, the returned object has a different root : if you add files
+on this object, you will put them in the created subfolder. This is just a
+view, the added files will also be in the "root" object.
+
+```js
+var photoZip = zip.folder("photos");
+// this call will create photos/README
+photoZip.file("README", "a folder with photos");
+```
+
+You can access the file content with `.file(name)` and
+[its getters]({{site.baseurl}}/documentation/api_zipobject.html) :
+
+```js
+zip.file("hello.txt").asText(); // "Hello World\n"
+
+if (JSZip.support.uint8array) {
+ zip.file("hello.txt").asUint8Array(); // Uint8Array { 0=72, 1=101, 2=108, more...}
+}
+```
+
+You can also remove files or folders with `.remove(name)` :
+
+```js
+zip.remove("photos/README");
+zip.remove("photos");
+// same as
+zip.remove("photos"); // by removing the folder, you also remove its content.
+```
+
+### Generate a zip file
+
+With `.generate(options)` you can generate a zip file (not a real file but its
+representation in memory). Check
+[this page]({{site.baseurl}}/documentation/howto/write_zip.html) for more
+informations on how to write / give the file to the user.
+
+```js
+var content = null;
+if (JSZip.support.uint8array) {
+ content = zip.generate({type : "uint8array"});
+} else {
+ content = zip.generate({type : "string"});
+}
+```
+
+### Read a zip file
+
+With `.load(data)` you can load a zip file. Check
+[this page]({{site.baseurl}}/documentation/howto/read_zip.html) to see how to
+do properly (it's more tricky that it seems).
+
+```js
+var new_zip = new JSZip();
+// more files !
+new_zip.load(content);
+
+// you now have every files contained in the loaded zip
+new_zip.file("hello.txt").asText(); // "Hello World\n"
+```
+