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Lodash/Underscore dataURI/base64/string/typedArray to objectURL mixin
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| _.mixin({ | |
| dataURIToObjectURL(dataURI) { | |
| return this.blobToObjectURL(this.dataURIToBlob(dataURI)); | |
| }, | |
| base64ToObjectURL(base64, type) { | |
| return this.blobToObjectURL(this.base64ToBlob(base64, type)); | |
| }, | |
| stringToObjectURL(string, type) { | |
| return this.blobToObjectURL(this.stringToBlob(string, type)); | |
| }, | |
| typedArrayToObjectURL(typedArray, type) { | |
| return this.blobToObjectURL(this.typedArrayToBlob(typedArray, type)); | |
| }, | |
| blobToObjectURL(blob) { | |
| return window.URL.createObjectURL(blob); | |
| }, | |
| dataURIToBlob(string) { | |
| const [header, base64] = string.split(','); | |
| return this.base64ToBlob(base64, header.replace('data:', '').replace(';base64', '')); | |
| }, | |
| base64ToBlob(string, type) { | |
| return this.stringToBlob(window.atob(string), type); | |
| }, | |
| stringToBlob(string, type) { | |
| return this.typedArrayToBlob(this.stringToTypedArray(string), type); | |
| }, | |
| stringToTypedArray(string) { | |
| const stringLength = string.length; | |
| const arrayBuffer = new ArrayBuffer(stringLength); | |
| const view = new Uint8Array(arrayBuffer); | |
| for (let i = 0; i < stringLength; i += 1) { | |
| view[i] = string.charCodeAt(i); | |
| } | |
| return view; | |
| }, | |
| typedArrayToBlob(typedArray, type = 'image/jpeg') { | |
| return new Blob([typedArray], { type }); | |
| }, | |
| stringToArrayBuffer(string) { | |
| return this.stringToTypedArray(string).buffer; | |
| }, | |
| arrayBufferToString(arrayBuffer) { | |
| let string = ''; | |
| const view = new Uint8Array(arrayBuffer); | |
| const viewLength = view.length; | |
| for (let i = 0; i < viewLength; i += 1) { | |
| string += String.fromCharCode(view[i]); | |
| } | |
| return string; | |
| }, | |
| }); |
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