小编nev*_*vos的帖子

Swift中是否有一个函数检查数组的所有元素是否具有相同的值？就我而言,它是一个类型的数组Int.我知道我可以使用一个简单的for循环迭代它我只是想知道是否有内置和更快的东西.

我使用NAN在node.js中包含一个c ++库.我理解如何在两者之间来回传递数字和字符串,但我不明白如何传递数组.我想做的是这样的事情:

index.js

var test = require('bindings')('test');

var buffer = [0,0,0,0,0,0.1,0,0,0,0,-0.1];
test.encode(buffer, buffer.length);

test.cc

var encoder = new Encoder();

NAN_METHOD(Encode){

    //the next line is incorrect, I want to take the buffer array and pass it as a pointer to the encodeBuffer() function
    Local<Number> buffer = args[0].As<Number>();

    //get the integer value of the second argument
    Local<Number> buffer_length = args[1].As<Number>();
    int bl_int = buffer_length->IntegerValue();

    //call function
    encoder.encodeBuffer(buffer, bl_int);
}

void Init(Handle<Object> exports) {
  exports->Set(NanNew("encode"), NanNew<FunctionTemplate>(Encode)->GetFunction());
}

我想在c ++库中使用的实际方法是:

void encodeBuffer(float …

我有以下表格:

form(method='post', action='/encoder_post', enctype='multipart/form-data')
    .form-group
        label(for='name') Name
        input.form-control(type='text', id='name', name='name')
    .form-group
        label(for='message') Message
        input.form-control(type='text', id='message', name='message')
    .form-group
        label(for='file') Audio File (*.wav)
        input.form-control(type='file', id='file')
    button.btn.btn-cicada.btn-block(type='submit') Submit

在里面encoder_post,我有以下函数来处理post请求:

router.post('/', function(req, res){
    req.busboy.on('file', function(fieldname, file, filename, encoding, mimetype) {
        console.log("this is in file");
    });
    req.busboy.on('field', function(key, value, keyTruncated, valueTruncated) {
        console.log("The value is: " + value);
    });
    req.pipe(req.busboy);
});

但是,每当我提交表单时,'field'处理程序都会触发,但'file'不会.

里面app.js我有:

var busboy = require('connect-busboy');
app.use(busboy());

有任何想法吗？

我试图在单击提交按钮时更改段落内的文本.由于某种原因,它不起作用.我尝试在其他问题中找到答案但不能.为什么这不起作用？Javascript代码:

var $submit = $('input:submit');
$submit.click(function(){
    var $newText = $('input:text').val();
    var $p = $('#newStatus');
    $p.text($newText);
});

HTML:

<div class = "grid_12">
  <form>
    <input type="text" name="status">
    <input type="submit" name="submit" value = "Post">
  </form>
  <p id = "newStatus"></p>
</div>

谢谢!

我正在尝试使用npm安装Johnny Five,但我一直在收到错误.这是我在终端窗口中得到的.

gyp ERR! build error 
gyp ERR! stack Error: not found: make
gyp ERR! stack     at F (/usr/local/lib/node_modules/npm/node_modules/which/which.js:43:28)
gyp ERR! stack     at E (/usr/local/lib/node_modules/npm/node_modules/which/which.js:46:29)
gyp ERR! stack     at /usr/local/lib/node_modules/npm/node_modules/which/which.js:57:16
gyp ERR! stack     at Object.oncomplete (fs.js:107:15)
gyp ERR! System Darwin 12.4.0
gyp ERR! command "node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /Users/nevosegal/GitHub/node_modules/firmata/node_modules/serialport
gyp ERR! node -v v0.10.10
gyp ERR! node-gyp -v v0.9.6
gyp ERR! not ok 
npm ERR! weird error 1
npm ERR! not ok code 0

以下是日志文件.任何人？

2793 error Error: …