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js.html
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js.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<script src="js/jquery.js"></script>
<title>JS Demo</title>
<style type="text/css">
body {
font-size: 14px;
font-family: Arial, Helvetica;
}
.container {
width: 866px;
margin: 0 auto;
}
.title {
text-align: center;
border-bottom: 1px solid #999;
margin: 2em 0;
padding-bottom: 1em;
}
.center {
text-align: center;
}
.dropzone {
width: 360px;
height: 360px;
background: #f7f7f7;
border: 2px dashed #999;
}
</style>
<script type="text/javascript">
function even(n) {
return n % 2 == 0;
}
var ns = [1, 2, 3, 4, 5, 6];
var h = ns.map(function(x) {
return x * x;
});
var g = ns.filter(even);
var k = ns.reduce(function(a, b) {
return a + b;
});
// Blob Object
function makePNG(pngData) {
var BlobBuilder = window.BlobBuilder || window.MozBlobBuilder || window.WebKitBlobBuilder;
var blob = new BlobBuilder();
blob.append(pngData);
var url = blob.getBlob('image/png').createObjectURL();
return url;
}
// Ajax Upload
function upload(files) {
var uploadBlob = function uploadBlob(files, onload) {
var xhr = new XMLHttpRequest();
xhr.open('POST', params.url, true);
xhr.onload = onload;
xhr.send(files);
}
var formData = new FormData();
files.map(function(file) {
formData.append(file.fileName, file)
return file;
});
uploadBlob(files, function() {
alert("Upload Finished!");
});
}
(function() {
var toArray = function toArray(files) {
var output = [];
for (var i = 0, f; f = files[i]; i += 1) {
output.push(f);
}
return output;
}
var updateProgress = function (state) {
var progress = $('progress#progress');
progress.attr('max', 100);
if (state == 'start') {
return progress.fadeIn(500);
} else if (state == 'stop') {
return progress.fadeOut(500);
}
return progress.attr('value', state);
}
var uploadBlob = function uploadBlob(params) {
var xhr = new XMLHttpRequest();
xhr.open('POST', params.url, true);
xhr.onload = params.success;
// 监听上传进度
xhr.upload.onprogress = params.progress;
xhr.send(params.blob);
return params;
}
var fileupload = function fileupload() {
var el = document.getElementById('dropzone');
var stopEvent = function(evt) {
evt.stopPropagation();
evt.preventDefault();
}
el.addEventListener('dragovr', stopEvent, false);
el.addEventListener('drop', function(evt) {
stopEvent(evt);
var files = toArray(evt.dataTransfer.files);
updateProgress('start');
var packageFiles = function(files) {
var formData = new FormData();
files.map(function(file) {
formData.append(file.fileName, file);
return file;
});
var block = {
url: '/upload.php',
success: function() {
updateProgress('stop');
},
progress: function(evt) {
updateProgress(100 * (evt.loaded / evt.total));
},
blob: formData
}
return block;
};
uploadBlob(packageFiles(files));
}, false);
};
}());
</script>
</head>
<body>
<div class="container">
<h1 class="title">JS Demo</h1>
<div class="content">
<progress id="progress" value="23" max="100">
<span>running</span>
</progress>
<meter min="0" value="23" high="80" low="30" optimum="60" max="100">
<span>20%</span>
</meter>
<div id="dropzone" class="dropzone"></div>
</div>
</div>
<script type="text/javascript">
// var PI = 3.14159263;
var k1 = 6;
var qq = '285554';
var el = '#dz';
el.addEventListener('dropover', function(evt) {
var file = evt.dataTransfer.file[0];
file.readDataAsURL();
file.onload = function(img) {
$('div.images').append('<img>').attr({src: img});
}
});
window.navigator.geolocation.getCurrentPosition(function(pos) {
console.log('当前地理位置纬度：' + pos.coords.latitude);
console.log('当前地理位置经度：' + pos.coords.longitude);
console.log('当前经纬度的精度：' + pos.coords.accuracy);
console.log('ending...');
});
</script>
</body>
</html>