37 lines
826 B
JavaScript
37 lines
826 B
JavaScript
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DWE.File = {}
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DWE.File.httpGET = function (url) {
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return new Promise(function (resolve, reject) {
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var xmlHttp = new XMLHttpRequest()
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xmlHttp.onreadystatechange = function() {
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if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
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resolve(xmlHttp.responseText)
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} else if (xmlHttp.readyState == 4 && xmlHttp.status >= 400) {
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reject(xmlHttp.responseText)
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}
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}
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xmlHttp.open('GET', url, true)
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xmlHttp.responseType = 'text'
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xmlHttp.send(null)
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})
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}
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DWE.File.loadJson = function (url) {
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return new Promise(function (resolve, reject) {
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var promise = DWE.File.httpGET(url)
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promise.then(function (data) {
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var json
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try {
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json = JSON.parse(data)
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} catch (e) {
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return reject(e)
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}
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resolve(json)
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}, reject)
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})
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}
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