js导出json文件
参照个人项目： Tool_and_dome/spanish/index.html (仅作个人记录)
function saveJSON(data, filename){
if(!data) {
alert('保存的数据为空');
return;
}
if(!filename)
filename = 'json.json'
if(typeof data === 'object'){
data = JSON.stringify(data, undefined, 4)
}
var blob = new Blob([data], {type: 'text/json'}),
e = document.createEvent('MouseEvents'),
a = document.createElement('a')
a.download = filename
a.href = window.URL.createObjectURL(blob)
a.dataset.downloadurl = ['text/json', a.download, a.href].join(':')
e.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null)
a.dispatchEvent(e)
}
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