base64ToArrayBuffer: function (base64) { var binary_string = window.atob(base64); var len = binary_string.length; var bytes = new Uint8Array(len); for (var i = 0; i < len; i++) { bytes[i] = binary_string.charCodeAt(i); }/*from w w w . j ava 2 s . c o m*/ ...
string 和 arraybuffer 之间相互转换. 方法1: 如果要使得生成 arraybuffer 转换成 Buffer后,直接使用 buffer.toString('utf8') 方法可以得到字符串,就使用 TextEncoder进行编码: /** * Convert String to ArrayBuffer via TextEncoder * * @see https://developer.mozilla.org/zh-CN/docs/Web/API/TextEncoder ...
reader.readAsArrayBuffer(blob); 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. buffer 转成blob let blob = new Blob([buffer]) 1. base64 转 file const base64ConvertFile = function (urlData, filename) { // 64转file if (typeof urlData != 'string') { this.$toast("urlData不是字符...
reader.readAsArrayBuffer(blob); 4. buffer 转成blob letblob = new Blob([buffer]) 5. base64 转 file const base64ConvertFile =function(urlData, filename) { // 64转file if(typeof urlData !='string') { this.$toast("urlData不是字符串") return; } var arr = urlData.split(',') var...
So, if I convert my JavaScript array of string to anArrayBuffer, and then pass it to my native addon, that would improve the speed? or this JavaScript-side conversion is an anti-pattern. I am not sure if I can change my interface to use ArrayBuffer from the beginning. It can be a ...
readAsArrayBuffer(blob); buffer 转成blob let blob = new Blob([buffer]) base64 转 file const base64ConvertFile = function (urlData, filename) { // 64转file if (typeof urlData != 'string') { this.$toast("urlData不是字符串") return; } var arr = urlData.split(',') var ...
Convert to/from non-negative integers represented withES-2020 native JS implementation of BigIntfrom/to: Buffer(node.js) orArrayBuffer|TypedArray(native js), hexstring, utf8-encoded textstring, standard and url-safe base64 with and without padding. ...
Added support of SuppressedError to structuredClone polyfill Removed unspecified unnecessary ArrayBuffer and DataView dependencies of structuredClone lack of which could cause errors in some entries in IE10- Fixed handling of fractional number part in Number.fromString Compat data improvements: URL.canPar...
(Buffer.poolSize>>>1))returncreateFromString(string,ops.encodingVal);// 剩下的不够了,扩容if(length>(poolSize-poolOffset))createPool();// 从 allocPool (ArrayBuffer)中分配内存letb=newFastBuffer(allocPool,poolOffset,length);constactual=ops.write(b,string,0,length);poolOffset+=actual;align...
();constdata=encoder.encode(str);consthashBuffer=awaitcrypto.subtle.digest("SHA-256",data);consthashArray=Array.from(newUint8Array(hashBuffer));// convert buffer to byte arrayconsthashHex=hashArray.map((b)=>b.toString(16).padStart(2,"0")).join("");// convert bytes to hex string...