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Objective-C 2.0 Mac和iOS开发实践指南 PDF扫描版 - 文档下载 - 清泛网 - ...
... C，Object.ve.C的基础
1.1. C程序的结构
1.1.1. main函数
1.1.2 格式化
1.1.3 注释
1.1.4 变量和函数名
1.1.5 命名惯例
1.1.6 文件
1.2 变量
1.2.1. 整数类型
1.2.2 浮点类型
1.2.3 真值
1.2.4 初始化
1.2.5 指针
1.2.6 数组
1.2.7 字符串
1.2.8 结...
d3 axis labeling
...eTime might as well do the trick for days scaling with a date format ?
d3.json("data.json", function(error, data) {
if (error) throw error;
data.forEach(function(d) {
d.year = parseTime(d.year);
d.value = +d.value;
});
x.domain(d3.extent(data, function(d) { return d.year; }));
y.domain([d3.mi...
cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
...过，80386在复位时也返回处理器签名，但80386返回的签名格式是和上面不同的，后面可能会提到。
通过处理器签名，可以确定CPU的具体型号，以下是部分Intel CPU的处理器签名数据（资料来自Intel）：
前面说过，80386尽...
Creating a BLOB from a Base64 string in JavaScript
...is method you can also easily get a ReadableStream, ArrayBuffer, text, and JSON.
(fyi this also works with node-fetch in Node)
As a function:
const b64toBlob = (base64, type = 'application/octet-stream') =>
fetch(`data:${type};base64,${base64}`).then(res => res.blob())
I did a simple perf...
What's the advantage of Logic-less template (such as mustache)?
... various presentation layers. If you want similar data to be presented as JSON, HTML, or XML, you shouldn't twist the data 100% in the HTML template. That would leave the JSON and XML to have their own twisting display logic. You're centralizing 80% of the display logic in the controller, and emb...
What are all the possible values for HTTP “Content-Type” header?
...f
application/xhtml+xml
application/x-shockwave-flash
application/json
application/ld+json
application/xml
application/zip
application/x-www-form-urlencoded
Type audio
audio/mpeg
audio/x-ms-wma
audio/vnd.rn-realaudio
audio/x-wav
Type image
image/gif
image/jpeg...
PDO Prepared Inserts multiple rows in single query
... how can I insert thousands of rows when they are stored in an object like JSON? My code below works perferctly. But how can I adjust it to insert 10 rows in one execution? ` foreach($json_content as $datarow) { $id = $datarow[id]; $date = $datarow[date]; $row3 = $datarow[row...
using facebook sdk in Android studio
...gin.LoginResult;
import com.facebook.login.widget.LoginButton;
import org.json.JSONException;
import org.json.JSONObject;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
public class MainActivity extends AppCompatActivity {
private...
Unauthorised webapi call returning login page rather than 401
...s returned with the following information in the HTTP header.
X-Responded-JSON: {"status":401,"headers":{"location":"http:\/\/localhost:59540\/Account\/Login?ReturnUrl=%2Fapi%2FTestBasic"}}
You could change your logic on the client side to check this information in the header to determine how to ...
Uploading base64 encoded Image to Amazon S3 via Node.js
...s-sdk.
var AWS = require('aws-sdk');
AWS.config.loadFromPath('./s3_config.json');
var s3Bucket = new AWS.S3( { params: {Bucket: 'myBucket'} } );
inside your router method :-
ContentType should be set to the content type of the image file
buf = Buffer.from(req.body.imageBinary.replace(/^data:im...