var BlobBuilder = window.BlobBuilder || window.MozBlobBuilder || window.WebKitBlobBuilder || window.MSBlobBuilder; var bb = new BlobBuilder(); bb.append(arr.stString());

今天在chrome瀏覽器中這樣使用時，出線錯誤TypeError: BlobBuilder is not a constructor。

解決：

原文地址：http://stackoverflow.com/questions/15293694/blob-constructor-browser-compatibility

0 down vote accepted Got it working with your code. I only had to change some little detail:if(e.name == 'TypeError' && window.BlobBuilder){var bb = new BlobBuilder();bb.append(data);out = bb.getBlob(datatype);console.debug("case 2");} bb.append(data); // data must be with no brackets My function(constructor) that works now for all browsers:var NewBlob = function(data, datatype) {var out;try {out = new Blob([data], {type: datatype});console.debug("case 1");}catch (e) {window.BlobBuilder = window.BlobBuilder ||window.WebKitBlobBuilder ||window.MozBlobBuilder ||window.MSBlobBuilder;if (e.name == 'TypeError' && window.BlobBuilder) {var bb = new BlobBuilder();bb.append(data);out = bb.getBlob(datatype);console.debug("case 2");}else if (e.name == "InvalidStateError") {// InvalidStateError (tested on FF13 WinXP)out = new Blob([data], {type: datatype});console.debug("case 3");}else {// We're screwed, blob constructor unsupported entirely console.debug("Errore");}}return out; }

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轉載于:https://www.cnblogs.com/ZhYQ-Note/p/5901433.html

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