compressBase64Image(base64Data,1000, 1000,function(compressedBase64Data) {//在这里处理压缩后的 base64 图像数据//console.log(compressedBase64Data);array.push(compressedBase64Data);//如果所有图片都被处理完毕,上传到Redisif(array.length ===filesLen) {//图片ajax上传postMultiToRedis(array); } });
StringOrValue StringTransformEvaluator SubArray 子 減去 SubtractFromTime 和 拿 TextContentContext 蜱 TicksToDays TicksToHours TicksToMinutes TimeTransformEvaluator TimexResolve TimeZoneConverter TitleCase ToLower ToUpper 觸發 TriggerTree 修剪 TripleOpExpContext UnaryOpExpContext 聯盟 獨特 UriComponent UriComponen...
// If we have 8 or more bits, append 8 bits to the result if (leftbits >= 8) { leftbits -= 8; // Append if not padding. if (!padding) result += String.fromCharCode((leftdata >> leftbits) & 0xff); leftdata &= (1 << leftbits) - 1; } } // If there are any bits ...
const base64String = reader.result; // 将base64编码的字符串发送到服务器 sendBase64ToServer(base64String); }; reader.readAsDataURL(file); 将base64字符串发送到服务器:在JavaScript中,使用XMLHttpRequest或fetch等方法将base64编码的字符串发送到服务器。 function sendBase64ToServer(base64String) { const...
}) ();//hexToBase64 Base64Tohex base64decode base64encodefunctionbytesToString(bytes){returnhexToString(bytesToHex(bytes)); }functionbytesToBase64(bytes){returnbase64ArrayBuffer(bytes); }//Convert a byte array to a hex stringfunctionbytesToHex(bytes) {for(varhex = [], i = 0; i < bytes...
javascript进行hex、base64、bytes[]、string的互转 2020-04-29 09:30 −... AskTa0 0 7335 base64转换string 2019-12-25 09:03 −1.通过函数转 function Base64ToStr1(const Base64: string): string;var I, J, K, Len, Len1: Integer; B4: array[0..3] of Byte;begin if Base64 = '...
(result,ascii); } function stringToBytes(param,ascii) { //该方法只适用于utf-8编码和ascii编码(适用于生成文件),参数为string var bytes = new Array(); if (ascii) { for (var i=0;i<param.length;i++) { bytes.push(param.charCodeAt(i)); } return bytes; } for (var i=0;i<param....
JavaScript 提供了一些 API 来处理文件或原始文件数据,例如:File、Blob、FileReader、ArrayBuffer、base64 等。下面就来看看它们都是如何使用的,它们之间又有何区别和联系! ArrayBuffer ArrayBuffer 对象用来表示通用的、固定长度的原始二进制数据缓冲区,是内存中一段固定长度的连续数据存储区的引用,你无法直接操作或修改它...
function base64ToFile(base64String, fileName, mimeType) { // 去除Base64字符串中的数据URL前缀 const base64Content = base64String.split(',')[1]; // 将Base64字符串转换为ArrayBuffer const byteCharacters = atob(base64Content); const byteArrays = []; for (let offset = 0; offset < byte...
示例代码(模拟过程):```javascriptlet base64String = ‘data:text/plain;base64,SGVsbG8sIHdvcmxkIQ==’;let blob = this.base64ToBlob(base64String, ‘text/plain’); // 假设base64ToBlob是上述Base64到Blob的转换函数let file = new File([blob], ‘example.txt’, { type:相关...