if you don't want to use json.parse(json.stringify(object)) you could create recursively key-value copies:

function copy(item){
  let result = null;
  if(!item) return result;
  if(Array.isArray(item)){
    result = [];
    item.forEach(element=>{
      result.push(copy(element));
    });
  }
  else if(item instanceof Object && !(item instanceof Function)){ 
    result = {};
    for(let key in item){
      if(key){
        result[key] = copy(item[key]);
      }
    }
  }
  return result || item;
}

But the best way is to create a class that can return a clone of it self

class MyClass{
    data = null;
    constructor(values){ this.data = values }
    toString(){ console.log("MyClass: "+this.data.toString(;) }
    remove(id){ this.data = data.filter(d=>d.id!==id) }
    clone(){ return new MyClass(this.data) }
}

Answering normajeans' question about setting default value. Create a defaults object with same properties and merge with the arguments object

If using ES6:

    function yourFunction(args){
        let defaults = {opt1: true, opt2: 'something'};
        let params = {...defaults, ...args}; // right-most object overwrites 
        console.log(params.opt1);
    }

Older Browsers using Object.assign(target, source):

    function yourFunction(args){
        var defaults = {opt1: true, opt2: 'something'};
        var params = Object.assign(defaults, args) // args overwrites as it is source
        console.log(params.opt1);
    }

Array.isArray is the way to go about this. For example:

var arr = ['tuna', 'chicken', 'pb&j'];
var obj = {sandwich: 'tuna', chips: 'cape cod'};

// Returns true
Array.isArray(arr);

// Return false
Array.isArray(obj);

You can try using lodash- A modern JavaScript utility library delivering modularity, performance & extras js to fast object iterate:-

var  users  =   {_x000D_
    'fred':     { _x000D_
        'user':   'fred',_x000D_
            'age':  40 _x000D_
    },_x000D_
    'pebbles':  { _x000D_
        'user':   'pebbles',_x000D_
         'age':  1 _x000D_
    }_x000D_
}; _x000D_
_.mapValues(users,  function(o)  { _x000D_
    return  o.age; _x000D_
});_x000D_
// => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)_x000D_
// The `_.property` iteratee shorthand._x000D_
console.log(_.mapValues(users,  'age')); // returns age property & value _x000D_
console.log(_.mapValues(users,  'user')); // returns user property & value _x000D_
console.log(_.mapValues(users)); // returns all objects _x000D_
// => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash-compat/3.10.2/lodash.js"></script>

var output = '';
for (var property in object) {
  output += property + ': ' + object[property]+'; ';
}
alert(output);

The most robust answer (i.e. that captures the intent of what you're trying to do while causing the fewest bugs) would be:

Object.size = function(obj) {
  var size = 0,
    key;
  for (key in obj) {
    if (obj.hasOwnProperty(key)) size++;
  }
  return size;
};

// Get the size of an object
const myObj = {}
var size = Object.size(myObj);

There's a sort of convention in JavaScript that you don't add things to Object.prototype, because it can break enumerations in various libraries. Adding methods to Object is usually safe, though.

Here's an update as of 2016 and widespread deployment of ES5 and beyond. For IE9+ and all other modern ES5+ capable browsers, you can use Object.keys() so the above code just becomes:

var size = Object.keys(myObj).length;

This doesn't have to modify any existing prototype since Object.keys() is now built-in.

Edit: Objects can have symbolic properties that can not be returned via Object.key method. So the answer would be incomplete without mentioning them.

Symbol type was added to the language to create unique identifiers for object properties. The main benefit of the Symbol type is the prevention of overwrites.

Object.keys or Object.getOwnPropertyNames does not work for symbolic properties. To return them you need to use Object.getOwnPropertySymbols.

var person = {
  [Symbol('name')]: 'John Doe',
  [Symbol('age')]: 33,
  "occupation": "Programmer"
};

const propOwn = Object.getOwnPropertyNames(person);
console.log(propOwn.length); // 1

let propSymb = Object.getOwnPropertySymbols(person);
console.log(propSymb.length); // 2

Try the following method. Assign the Object property value to undefined. Then stringify the object and parse.

 var myObject = {"ircEvent": "PRIVMSG", "method": "newURI", "regex": "^http://.*"};_x000D_
_x000D_
myObject.regex = undefined;_x000D_
myObject = JSON.parse(JSON.stringify(myObject));_x000D_
_x000D_
console.log(myObject);

ES6:

const newArray = array.map(({keepAttr1, keepAttr2}) => ({keepAttr1, newPropName: keepAttr2}))

If you happen to be using jQuery, you might want to give this a shot: http://api.jquery.com/category/deferred-object/

It allows you to defer the execution of your callback function until the ajax request (or any async operation) is completed. This can also be used to call a callback once several ajax requests have all completed.

Unless the variable k is defined, that's probably what's causing your trouble. Something like this will do what you want:

var new_tweets = { };

new_tweets.k = { };

new_tweets.k.tweet_id = 98745521;
new_tweets.k.user_id = 54875;

new_tweets.k.data = { };

new_tweets.k.data.in_reply_to_screen_name = 'other_user';
new_tweets.k.data.text = 'tweet text';

// Will create the JSON string you're looking for.
var json = JSON.stringify(new_tweets);

You can also do it all at once:

var new_tweets = {
  k: {
    tweet_id: 98745521,
    user_id: 54875,
    data: {
      in_reply_to_screen_name: 'other_user',
      text: 'tweet_text'
    }
  }
}

Your LMSInitialize function is declared inside Scorm_API_12 function. So it can be seen only in Scorm_API_12 function's scope.

If you want to use this function like API.LMSInitialize(""), declare Scorm_API_12 function like this:

function Scorm_API_12() {
var Initialized = false;

this.LMSInitialize = function(param) {
    errorCode = "0";
    if (param == "") {
        if (!Initialized) {
            Initialized = true;
            errorCode = "0";
            return "true";
        } else {
            errorCode = "101";
        }
    } else {
        errorCode = "201";
    }
    return "false";
}

// some more functions, omitted.
}

var API = new Scorm_API_12();

Try this:

var newArr = [];
$.each(JSONObject.results.bindings, function(i, obj) {
    newArr.push([obj.value]);
});

As others have pointed out, .find() is the way to go when looking for one object within your array. However, if your object cannot be found using this method, your program will crash:

const myArray = [{'id':'73','foo':'bar'},{'id':'45','foo':'bar'}];_x000D_
const res = myArray.find(x => x.id === '100').foo; // Uh oh!_x000D_
/*_x000D_
Error:_x000D_
"Uncaught TypeError: Cannot read property 'foo' of undefined"_x000D_
*/

This can be fixed by checking whether the result of .find() is defined before using using .foo on it. Modern JS allows us to do this easily with optional chaining, returning undefined if the object cannot be found, rather than crashing your code:

const myArray = [{'id':'73','foo':'bar'},{'id':'45','foo':'bar'}];_x000D_
const res = myArray.find(x => x.id === '100')?.foo; // No error!_x000D_
console.log(res); // undefined when the object cannot be found

function count(){
    var c= 0;
    for(var p in this) if(this.hasOwnProperty(p))++c;
    return c;
}

var O={a: 1, b: 2, c: 3};

count.call(O);

You don't need to pass the quotes enclosing the custom headers to curl. Also, your variables in the middle of the data argument should be quoted.

First, write a function that generates the post data of your script. This saves you from all sort of headaches concerning shell quoting and makes it easier to read an maintain the script than feeding the post data on curl's invocation line as in your attempt:

generate_post_data()
{
  cat <<EOF
{
  "account": {
    "email": "$email",
    "screenName": "$screenName",
    "type": "$theType",
    "passwordSettings": {
      "password": "$password",
      "passwordConfirm": "$password"
    }
  },
  "firstName": "$firstName",
  "lastName": "$lastName",
  "middleName": "$middleName",
  "locale": "$locale",
  "registrationSiteId": "$registrationSiteId",
  "receiveEmail": "$receiveEmail",
  "dateOfBirth": "$dob",
  "mobileNumber": "$mobileNumber",
  "gender": "$gender",
  "fuelActivationDate": "$fuelActivationDate",
  "postalCode": "$postalCode",
  "country": "$country",
  "city": "$city",
  "state": "$state",
  "bio": "$bio",
  "jpFirstNameKana": "$jpFirstNameKana",
  "jpLastNameKana": "$jpLastNameKana",
  "height": "$height",
  "weight": "$weight",
  "distanceUnit": "MILES",
  "weightUnit": "POUNDS",
  "heightUnit": "FT/INCHES"
}
EOF
}

It is then easy to use that function in the invocation of curl:

curl -i \
-H "Accept: application/json" \
-H "Content-Type:application/json" \
-X POST --data "$(generate_post_data)" "https://xxx:[email protected]/xxxxx/xxxx/xxxx"

This said, here are a few clarifications about shell quoting rules:

The double quotes in the -H arguments (as in -H "foo bar") tell bash to keep what's inside as a single argument (even if it contains spaces).

The single quotes in the --data argument (as in --data 'foo bar') do the same, except they pass all text verbatim (including double quote characters and the dollar sign).

To insert a variable in the middle of a single quoted text, you have to end the single quote, then concatenate with the double quoted variable, and re-open the single quote to continue the text: 'foo bar'"$variable"'more foo'.

Another alternative is to use is.js (14kB) as opposed to jquery (32kB), lodash (50kB), or underscore (16.4kB). is.js proved to be the fastest library among aforementioned libraries that could be used to determine whether an object is empty.

http://jsperf.com/check-empty-object-using-libraries

Obviously all these libraries are not exactly the same so if you need to easily manipulate the DOM then jquery might still be a good choice or if you need more than just type checking then lodash or underscore might be good. As for is.js, here is the syntax:

var a = {};
is.empty(a); // true
is.empty({"hello": "world"}) // false

Like underscore's and lodash's _.isObject(), this is not exclusively for objects but also applies to arrays and strings.

Under the hood this library is using Object.getOwnPropertyNames which is similar to Object.keys but Object.getOwnPropertyNames is a more thorough since it will return enumerable and non-enumerable properties as described here.

is.empty = function(value) {
    if(is.object(value)){
        var num = Object.getOwnPropertyNames(value).length;
        if(num === 0 || (num === 1 && is.array(value)) || (num === 2 && is.arguments(value))){
            return true;
        }
        return false;
    } else {
        return value === '';
    }
};

If you don't want to bring in a library (which is understandable) and you know that you are only checking objects (not arrays or strings) then the following function should suit your needs.

function isEmptyObject( obj ) {
    return Object.getOwnPropertyNames(obj).length === 0;
}

This is only a bit faster than is.js though just because you aren't checking whether it is an object.

**Merging objects is simple using Object.assign or the spread ... operator **

var obj1 = { food: 'pizza', car: 'ford' }_x000D_
var obj2 = { animal: 'dog', car: 'BMW' }_x000D_
var obj3 = {a: "A"}_x000D_
_x000D_
_x000D_
var mergedObj = Object.assign(obj1,obj2,obj3)_x000D_
 // or using the Spread operator (...)_x000D_
var mergedObj = {...obj1,...obj2,...obj3}_x000D_
_x000D_
console.log(mergedObj);

The objects are merged from right to left, this means that objects which have identical properties as the objects to their right will be overriden.

In this example obj2.car overrides obj1.car

It depends of your definition of "better".

The other answers point out the use of map, which is natural (especially for guys used to functional style) and concise. I strongly recommend using it (if you don't bother with the few IE8- IT guys). So if "better" means "more concise", "maintainable", "understandable" then yes, it's way better.

In the other hand, this beauty don't come without additional costs. I'm not a big fan of microbench, but I've put up a small test here. The result are predictable, the old ugly way seems to be faster than the map function. So if "better" means "faster", then no, stay with the old school fashion.

Again this is just a microbench and in no way advocating against the use of map, it's just my two cents :).

After reading and trying out a lot of implementations, I've noticed that very few people try to check for values like JSON, Math, document or objects with prototype chains longer than 1 step.

Instead of checking the typeof of our variable and then hacking away edge-cases, I thought it'd be better if the check is kept as simple as possible to avoid having to refactor when there's new primitives or native objects added that register as typeof of 'object'.

After all, the typeof operator will tell you if something is an object to JavaScript, but JavaScript's definition of an object is too broad for most real-world scenarios (e.g. typeof null === 'object'). Below is a function that determines whether variable v is an object by essentially repeating two checks:

1. A loop is started that continues as long as the stringified version of v is '[object Object]'.
   I wanted the result of the function to be exactly like the logs below, so this is the only "objectness"-criteria I ended up with. If it fails, the function returns false right away.
2. v is replaced with the next prototype in the chain with v = Object.getPrototypeOf(v), but also directly evaluated after. When the new value of v is null, it means that every prototype including the root prototype (which could very well have been the only prototype inside the chain) have passed the check in the while loop and we can return true. Otherwise, a new iteration starts.

function isObj (v) {_x000D_
  while (     Object.prototype.toString.call(v) === '[object Object]')_x000D_
  if    ((v = Object.getPrototypeOf(v))         === null)_x000D_
  return true_x000D_
  return false_x000D_
}_x000D_
_x000D_
console.log('FALSE:')_x000D_
console.log('[]                   -> ', isObj([]))_x000D_
console.log('null                 -> ', isObj(null))_x000D_
console.log('document             -> ', isObj(document))_x000D_
console.log('JSON                 -> ', isObj(JSON))_x000D_
console.log('function             -> ', isObj(function () {}))_x000D_
console.log('new Date()           -> ', isObj(new Date()))_x000D_
console.log('RegExp               -> ', isObj(/./))_x000D_
_x000D_
console.log('TRUE:')_x000D_
console.log('{}                   -> ', isObj({}))_x000D_
console.log('new Object()         -> ', isObj(new Object()))_x000D_
console.log('new Object(null)     -> ', isObj(new Object(null)))_x000D_
console.log('new Object({})       -> ', isObj(new Object({foo: 'bar'})))_x000D_
console.log('Object.prototype     -> ', isObj(Object.prototype))_x000D_
console.log('Object.create(null)  -> ', isObj(Object.create(null)))_x000D_
console.log('Object.create({})    -> ', isObj(Object.create({foo: 'bar'})))_x000D_
console.log('deep inheritance     -> ', isObj(Object.create(Object.create({foo: 'bar'}))))

From this article: How to copy arrays and objects in Javascript by Brian Huisman:

Object.prototype.clone = function() {
  var newObj = (this instanceof Array) ? [] : {};
  for (var i in this) {
    if (i == 'clone') continue;
    if (this[i] && typeof this[i] == "object") {
      newObj[i] = this[i].clone();
    } else newObj[i] = this[i]
  } return newObj;
};

Just using the Array iteration methods built into JS is fine for this:

var result1 = [_x000D_
    {id:1, name:'Sandra', type:'user', username:'sandra'},_x000D_
    {id:2, name:'John', type:'admin', username:'johnny2'},_x000D_
    {id:3, name:'Peter', type:'user', username:'pete'},_x000D_
    {id:4, name:'Bobby', type:'user', username:'be_bob'}_x000D_
];_x000D_
_x000D_
var result2 = [_x000D_
    {id:2, name:'John', email:'[email protected]'},_x000D_
    {id:4, name:'Bobby', email:'[email protected]'}_x000D_
];_x000D_
_x000D_
var props = ['id', 'name'];_x000D_
_x000D_
var result = result1.filter(function(o1){_x000D_
    // filter out (!) items in result2_x000D_
    return !result2.some(function(o2){_x000D_
        return o1.id === o2.id;          // assumes unique id_x000D_
    });_x000D_
}).map(function(o){_x000D_
    // use reduce to make objects with only the required properties_x000D_
    // and map to apply this to the filtered array as a whole_x000D_
    return props.reduce(function(newo, name){_x000D_
        newo[name] = o[name];_x000D_
        return newo;_x000D_
    }, {});_x000D_
});_x000D_
_x000D_
document.body.innerHTML = '<pre>' + JSON.stringify(result, null, 4) +_x000D_
        '</pre>';

If you are doing this a lot, then by all means look at external libraries to help you out, but it's worth learning the basics first, and the basics will serve you well here.

I looked through submitted answers and got that they only apply if you search for the object via reference. A simple linear search with reference object comparison.

But lets say you don't have the reference to an object, how will you find the correct object in the array? You will have to go linearly and deep compare with each object. Imagine if the list is too large, and the objects in it are very big containing big pieces of text. The performance drops drastically with the number and size of the elements in the array.

You can stringify objects and put them in the native hash table, but then you will have data redundancy remembering these keys cause JavaScript keeps them for 'for i in obj', and you only want to check if the object exists or not, that is, you have the key.

I thought about this for some time constructing a JSON Schema validator, and I devised a simple wrapper for the native hash table, similar to the sole hash table implementation, with some optimization exceptions which I left to the native hash table to deal with. It only needs performance benchmarking... All the details and code can be found on my blog: http://stamat.wordpress.com/javascript-quickly-find-very-large-objects-in-a-large-array/ I will soon post benchmark results.

The complete solution works like this:

var a = {'a':1,
 'b':{'c':[1,2,[3,45],4,5],
 'd':{'q':1, 'b':{'q':1, 'b':8},'c':4},
 'u':'lol'},
 'e':2};

 var b = {'a':1, 
 'b':{'c':[2,3,[1]],
 'd':{'q':3,'b':{'b':3}}},
 'e':2};

 var c = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.";

 var hc = new HashCache([{a:3, b:2, c:5}, {a:15, b:2, c:'foo'}]); //init

 hc.put({a:1, b:1});
 hc.put({b:1, a:1});
 hc.put(true);
 hc.put('true');
 hc.put(a);
 hc.put(c);
 hc.put(d);
 console.log(hc.exists('true'));
 console.log(hc.exists(a));
 console.log(hc.exists(c));
 console.log(hc.exists({b:1, a:1}));
 hc.remove(a);
 console.log(hc.exists(c));

var a = [];

it is use for brackets for an array of simple values. eg.

var name=["a","b","c"]

var a={}

is use for value arrays and objects/properties also. eg.

var programmer = { 'name':'special', 'url':'www.google.com'}

Add your <script> to the bottom of your <body>, or add an event listener for DOMContentLoaded following this StackOverflow question.

If that script executes in the <head> section of the code, document.getElementsByClassName(...) will return an empty array because the DOM is not loaded yet.

You're getting the Type Error because you're referencing search_span[0], but search_span[0] is undefined.

This works when you execute it in Dev Tools because the DOM is already loaded.

Your only option is to somehow clone the object.

See this stackoverflow question on how you can achieve this.

For simple JSON objects, the simplest way would be:

var newObject = JSON.parse(JSON.stringify(oldObject));

if you use jQuery, you can use:

// Shallow copy
var newObject = jQuery.extend({}, oldObject);

// Deep copy
var newObject = jQuery.extend(true, {}, oldObject);

UPDATE 2017: I should mention, since this is a popular answer, that there are now better ways to achieve this using newer versions of javascript:

In ES6 or TypeScript (2.1+):

var shallowCopy = { ...oldObject };

var shallowCopyWithExtraProp = { ...oldObject, extraProp: "abc" };

Note that if extraProp is also a property on oldObject, its value will not be used because the extraProp : "abc" is specified later in the expression, which essentially overrides it. Of course, oldObject will not be modified.

var pause_menu = {
    pause_button : { someProperty : "prop1", someOther : "prop2" },
    resume_button : { resumeProp : "prop", resumeProp2 : false },
    quit_button : false
};

then:

pause_menu.pause_button.someProperty //evaluates to "prop1"

etc etc.

You could do something like this:

var object = {
    foo:{a:'first'},
    bar:{},
    baz:{}
}


function getAttributeByIndex(obj, index){
  var i = 0;
  for (var attr in obj){
    if (index === i){
      return obj[attr];
    }
    i++;
  }
  return null;
}


var first = getAttributeByIndex(object, 0); // returns the value of the
                                            // first (0 index) attribute
                                            // of the object ( {a:'first'} )

The object and array literal syntax {}/[] was introduced in JavaScript 1.2, so is not available (and will produce a syntax error) in versions of Netscape Navigator prior to 4.0.

My fingers still default to saying new Array(), but I am a very old man. Thankfully Netscape 3 is not a browser many people ever have to consider today...

use

console.log(variable)

and if you using google chrome open Console by using Ctrl+Shift+j

Goto >> Console

Sum the object key value by parse Integer. Converting string format to integer and summing the values

var obj = {
  pay: 22
};
obj.pay;
console.log(obj.pay);
var x = parseInt(obj.pay);
console.log(x + 20);

DEFINITIONS

(number inside the parenthesis () is a 'link' to the code that is written below)

prototype - an object that consists of:
=> functions (3) of this particular ConstructorFunction.prototype(5) that are accessible by each object (4) created or to-be-created through this constructor function (1)
=> the constructor function itself (1)
=> __proto__ of this particular object (prototype object)

__proto__ (dandor proto?) - a link BETWEEN any object (2) created through a particular constructor function (1), AND the prototype object's properties (5) of that constructor THAT allows each created object (2) to have access to the prototype's functions and methods (4) (__proto__ is by default included in every single object in JS)

CODE CLARIFICATION

1.

    function Person (name, age) {
        this.name = name;
        this.age = age;  ?
    } 

2.

    var John = new Person(‘John’, 37);
    // John is an object

3.

    Person.prototype.getOlder = function() {
        this.age++;
    }
    // getOlder is a key that has a value of the function

4.

    John.getOlder();

5.

    Person.prototype;

The macros defined in <inttypes.h> are the most correct way to print values of types uint32_t, uint16_t, and so forth -- but they're not the only way.

Personally, I find those macros difficult to remember and awkward to use. (Given the syntax of a printf format string, that's probably unavoidable; I'm not claiming I could have come up with a better system.)

An alternative is to cast the values to a predefined type and use the format for that type.

Types int and unsigned int are guaranteed by the language to be at least 16 bits wide, and therefore to be able to hold any converted value of type int16_t or uint16_t, respectively. Similarly, long and unsigned long are at least 32 bits wide, and long long and unsigned long long are at least 64 bits wide.

For example, I might write your program like this (with a few additional tweaks):

#include <stdio.h>
#include <stdint.h>
#include <netinet/in.h>  

int main(void)
{
    uint32_t a=12, a1;
    uint16_t b=1, b1;
    a1 = htonl(a);
    printf("%lu---------%lu\n", (unsigned long)a, (unsigned long)a1);
    b1 = htons(b);
    printf("%u-----%u\n", (unsigned)b, (unsigned)b1);
    return 0;
}

One advantage of this approach is that it can work even with pre-C99 implementations that don't support <inttypes.h>. Such an implementation most likely wouldn't have <stdint.h> either, but the technique is useful for other integer types.

According to Microsoft documentation about Math Constants:

The file ATLComTime.h includes math.h when your project is built in Release mode. If you use one or more of the math constants in a project that also includes ATLComTime.h, you must define _USE_MATH_DEFINES before you include ATLComTime.h.

File ATLComTime.h may be included indirectly in your project. In my case one possible order of including was the following:

project's "stdafx.h" ? <afxdtctl.h> ? <afxdisp.h> ? <ATLComTime.h> ? <math.h>

This is how you can set the timeout after you click.

$(".selectorOnWhichEventCapture").on('click', function() {
    setTimeout(function(){
        $(".selector").doWhateverYouWantToDo();
    }, 5000);
});

//5000 = 5sec = 5000 milisec

Getting overly clever with obscure-er HTTP error codes is a bad idea. Browsers sometimes react in unhelpful ways that obfuscate the situation. Stick with 404.

In one line:

$('#selector').clone().attr('id','newid').appendTo('#newPlace');

The setting below has worked for me

Express 4.16.1

app.use(bodyParser.json({ limit: '50mb' }))
app.use(bodyParser.urlencoded({
  limit: '50mb',
  extended: false,
}))

Nginx

client_max_body_size 50m
client_body_temp_path /data/temp

Try a \<Space> before 12, like so:

:set guifont=Monospace\ 12

There are several ways to reclaim diskspace after deleting data from table for MySQL Inodb engine

If you don't use innodb_file_per_table from the beginning, dumping all data, delete all file, recreate database and import data again is only way ( check answers of FlipMcF above )

If you are using innodb_file_per_table, you may try

1. If you can delete all data truncate command will delete data and reclaim diskspace for you.
2. Alter table command will drop and recreate table so it can reclaim diskspace. Therefore after delete data, run alter table that change nothing to release hardisk ( ie: table TBL_A has charset uf8, after delete data run ALTER TABLE TBL_A charset utf8 -> this command change nothing from your table but It makes mysql recreate your table and regain diskspace
3. Create TBL_B like TBL_A . Insert select data you want to keep from TBL_A into TBL_B. Drop TBL_A, and rename TBL_B to TBL_A. This way is very effective if TBL_A and data that needed to delete is big (delete command in MySQL innodb is very bad performance)

A Simple Approach will be to use a normal link and add Bootstrap modal effect to it. Just make use of my Code, hopefully you will get it run.

 <div class="container">
        <div class="row">
            <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="addContact" aria-hidden="true">
                <div class="modal-dialog">
                    <div class="modal-content">
                        <div class="modal-header">
                            <button type="button" class="close" data-dismiss="modal" aria-hidden="true"><b style="color:#fb3600; font-weight:700;">X</b></button><!--&times;-->
                            <h4 class="modal-title text-center" id="addContact">Add Contact</h4>
                        </div>
                        <div class="modal-body">
                            <div class="row">
                                <ul class="nav nav-tabs">
                                    <li class="active">
                                        <a data-toggle="tab" style="background-color:#f5dfbe" href="#contactTab">Contact</a>
                                    </li>
                                    <li>
                                        <a data-toggle="tab" style="background-color:#a6d2f6" href="#speechTab">Speech</a>
                                    </li>
                                </ul>
                                <div class="tab-content">
                                    <div id="contactTab" class="tab-pane in active"><partial name="CreateContactTag"></div>
                                    <div id="speechTab" class="tab-pane fade in"><partial name="CreateSpeechTag"></div>
                                </div>

                            </div>
                        </div>
                        <div class="modal-footer">
                            <a class="btn btn-info" data-dismiss="modal">Close</a>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

When you [single-]click a file in the left sidebar's file browser or open it from the quick open menu (Ctrl-P, type the file name, Enter), Visual Studio Code opens it in what's called "Preview Mode", which allows you to quickly view files.

Preview Mode tabs are not kept open. As soon as you go to open another file from the sidebar, the existing Preview Mode tab (if one exists) is used. You can determine if a tab is in Preview Mode, by looking at its title in the tab bar. If the title is italic, the tab is in preview mode.

To open a file for editing (i.e. don't open in Preview Mode), double-click on the file in the sidebar, or single-click it in the sidebar then double click the title of its Preview Mode tab.

If you want to disable Preview Mode all together, you can do so by setting "workbench.editor.enablePreview": false in your settings file. You can also use the "workbench.editor.enablePreviewFromQuickOpen" option to disable it only from the quick open menu.

Before you can disable Preview Mode, you'll need to open your Settings File.

Pro Tip: You can use the Command Palette(shortcut Ctrl+Shift+P) to open your settings file, just enter "Preferences: Open User Settings"!

Once you've opened your settings file (your settings file should be located on the right), add the "workbench.editor.enablePreview" property, and set its value to false.

You can learn more about Visual Studio Code's "Preview Mode", here.

you can do it by button

<button onclick"document.getElementById('elementid').style.display = 'none or block';">

Not to jump into an old issue, but...

#container img {
      max-width:100%;
      height:auto !important;
}

Even though this is not proper as you use the !important override on the height, if you're using a CMS like WordPress that sets the height and width for you, this works well.

<input type="text" inputmode="numeric">

With Inputmode you can give a hint to the browser.

I had the "No module named PyQt4.QtCore" error and installing the python-qt4 package fixed it only partially: I could run

from PyQt4.QtCore import SIGNAL

from a python interpreter but only without activating my virtualenv.

The only solution I've found till now to use a virtualenv is to copy the PyQt4 folder and the sip.so file into my virtualenv as explained here: Is it possible to add PyQt4/PySide packages on a Virtualenv sandbox?

If PowerShell is available, the Send-MailMessage commandlet is a single one-line command that could easily be called from a batch file to handle email notifications. Below is a sample of the line you would include in your batch file to call the PowerShell script (the %xVariable% is a variable you might want to pass from your batch file to the PowerShell script):

--[BATCH FILE]--

:: ...your code here...
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe  -windowstyle hidden -command C:\MyScripts\EmailScript.ps1 %xVariable%

Below is an example of what you might include in your PowerShell script (you must include the PARAM line as the first non-remark line in your script if you included passing the %xVariable% from your batch file:

--[POWERSHELL SCRIPT]--

Param([String]$xVariable)
# ...your code here...
$smtp = "smtp.[emaildomain].com"
$to = "[Send to email address]"
$from = "[From email address]" 
$subject = "[Subject]" 
$body = "[Text you want to include----the <br> is a line feed: <br> <br>]"    
$body += "[This could be a second line of text]" + "<br> "

$attachment="[file name if you would like to include an attachment]"
send-MailMessage -SmtpServer $smtp -To $to -From $from -Subject $subject -Body $body -BodyAsHtml -Attachment $attachment -Priority high  

On which point does HTTPURLConnection try to establish a connection to the given URL?

It's worth clarifying, there's the 'UrlConnection' instance and then there's the underlying Tcp/Ip/SSL socket connection, 2 different concepts. The 'UrlConnection' or 'HttpUrlConnection' instance is synonymous with a single HTTP page request, and is created when you call url.openConnection(). But if you do multiple url.openConnection()'s from the one 'url' instance then if you're lucky, they'll reuse the same Tcp/Ip socket and SSL handshaking stuff...which is good if you're doing lots of page requests to the same server, especially good if you're using SSL where the overhead of establishing the socket is very high.

See: HttpURLConnection implementation

I positioned the divs slightly offset, so that you can see it at work.
HTML

<div class="outer">
  <div class="bot">BOT</div>
  <div class="top">TOP</div>
</div>

CSS

.outer {
  position: relative;
  margin-top: 20px;
}

.top {
  position: absolute;
  margin-top: -10px;
  background-color: green;
}

.bot {
  position: absolute;
  background-color: yellow;
}

https://codepen.io/anon/pen/EXxKzP

http://thiamteck.blogspot.com/2008/04/spring-propertyplaceholderconfigurer.html points out that "local properties" defined on the bean itself will be considered defaults to be overridden by values read from files:

<bean id="propertyConfigurer"class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
  <property name="location"><value>my_config.properties</value></property>  
  <property name="properties">  
    <props>  
      <prop key="entry.1">123</prop>  
    </props>  
  </property>  
</bean> 

We can clear the error by modifying the pip file.

Check the location of the file:

$ which pip

path -> /usr/bin/pip

Go to that location(/usr/bin/pip) and open terminal

Enter: $ sudo nano pip

You can see:

import sys
from pip import main
if __name__ == '__main__':
     sys.exit(main())

Change to:

import sys
from pip import __main__
if __name__ == '__main__':
     sys.exit(__main__._main())

then ctrl + o write the changes and exit

Hope this will do!!

Nesting Text components is not possible now, but you can wrap your text in a View like this:

<View style={{flexDirection: 'row', flexWrap: 'wrap'}}>
    <Text>
        {'Hello '}
    </Text>
    <Text style={{fontWeight: 'bold'}}>
        {'this is a bold text '}
    </Text>
    <Text>
        and this is not
    </Text>
</View>

I used the strings inside the brackets to force the space between words, but you can also achieve it with marginRight or marginLeft. Hope it helps.

Prefixing the statement with an exclamation mark will let you know whether the array is not empty. So in your case -

a = [1,2,3]
!a.empty?
=> true

Providing another "tricky" solution, which use split and join.

In your example, we can use

len("substring".join([s for s in ori.split("substring")[:2]]))

You can't. If you have a method called isBiggerThanMaxLong(long) it should always return false.

If you were to increment the bits of Long.MAX_VALUE, the next value should be Long.MIN_VALUE. Read up on twos-complement and that should tell you why.

Use String#slice, also aliased as [].

a = "hello there"
a[1]                   #=> "e"
a[1,3]                 #=> "ell"
a[1..3]                #=> "ell"
a[6..-1]               #=> "there"
a[6..]                 #=> "there" (requires Ruby 2.6+)
a[-3,2]                #=> "er"
a[-4..-2]              #=> "her"
a[12..-1]              #=> nil
a[-2..-4]              #=> ""
a[/[aeiou](.)\1/]      #=> "ell"
a[/[aeiou](.)\1/, 0]   #=> "ell"
a[/[aeiou](.)\1/, 1]   #=> "l"
a[/[aeiou](.)\1/, 2]   #=> nil
a["lo"]                #=> "lo"
a["bye"]               #=> nil

Open IIS manager, select Application Pools, select the application pool you are using, click on Advanced Settings in the right-hand menu. Under General, set "Enable 32-Bit Applications" to "True".

While @yydl gives a compelling reason on why the newInstance method is better:

If Android decides to recreate your Fragment later, it's going to call the no-argument constructor of your fragment. So overloading the constructor is not a solution.

it's still quite possible to use a constructor. To see why this is, first we need to see why the above workaround is used by Android.

Before a fragment can be used, an instance is needed. Android calls YourFragment() (the no arguments constructor) to construct an instance of the fragment. Here any overloaded constructor that you write will be ignored, as Android can't know which one to use.

In the lifetime of an Activity the fragment gets created as above and destroyed multiple times by Android. This means that if you put data in the fragment object itself, it will be lost once the fragment is destroyed.

To workaround, android asks that you store data using a Bundle (calling setArguments()), which can then be accessed from YourFragment. Argument bundles are protected by Android, and hence are guaranteed to be persistent.

One way to set this bundle is by using a static newInstance method:

public static YourFragment newInstance (int data) {
    YourFragment yf = new YourFragment()
    /* See this code gets executed immediately on your object construction */
    Bundle args = new Bundle();
    args.putInt("data", data);
    yf.setArguments(args);
    return yf;
}

However, a constructor:

public YourFragment(int data) {
    Bundle args = new Bundle();
    args.putInt("data", data);
    setArguments(args);
}

can do exactly the same thing as the newInstance method.

Naturally, this would fail, and is one of the reasons Android wants you to use the newInstance method:

public YourFragment(int data) {
    this.data = data; // Don't do this
}

As further explaination, here's Android's Fragment Class:

/**
 * Supply the construction arguments for this fragment.  This can only
 * be called before the fragment has been attached to its activity; that
 * is, you should call it immediately after constructing the fragment.  The
 * arguments supplied here will be retained across fragment destroy and
 * creation.
 */
public void setArguments(Bundle args) {
    if (mIndex >= 0) {
        throw new IllegalStateException("Fragment already active");
    }
    mArguments = args;
}

Note that Android asks that the arguments be set only at construction, and guarantees that these will be retained.

EDIT: As pointed out in the comments by @JHH, if you are providing a custom constructor that requires some arguments, then Java won't provide your fragment with a no arg default constructor. So this would require you to define a no arg constructor, which is code that you could avoid with the newInstance factory method.

EDIT: Android doesn't allow using an overloaded constructor for fragments anymore. You must use the newInstance method.

Do I understand correctly that you just want to define some utility methods and make them available in templates?

You don't have to add them to every controller. Just define a single controller for all the utility methods and attach that controller to <html> or <body> (using the ngController directive). Any other controllers you attach anywhere under <html> (meaning anywhere, period) or <body> (anywhere but <head>) will inherit that $scope and will have access to those methods.

Smoothly scroll to a proper position

Get correct y coordinate and use window.scrollTo({top: y, behavior: 'smooth'})

const id = 'profilePhoto';
const yOffset = -10; 
const element = document.getElementById(id);
const y = element.getBoundingClientRect().top + window.pageYOffset + yOffset;

window.scrollTo({top: y, behavior: 'smooth'});

It's now called rounded-circle as explained here in the BS4 docs

<img src="img/gallery2.JPG" class="rounded-circle">

Demo

I solve such queries using this pattern:

SELECT *
FROM t
WHERE t.field=(
  SELECT MAX(t.field) 
  FROM t AS t0 
  WHERE t.group_column1=t0.group_column1
    AND t.group_column2=t0.group_column2 ...)

That is it will select records where the value of a field is at its max value. To apply it to your query I used the common table expression so that I don't have to repeat the JOIN twice:

WITH site_history AS (
  SELECT sites.siteName, sites.siteIP, history.date
  FROM sites
  JOIN history USING (siteName)
)
SELECT *
FROM site_history h
WHERE date=(
  SELECT MAX(date) 
  FROM site_history h0 
  WHERE h.siteName=h0.siteName)
ORDER BY siteName

It's important to note that it works only if the field we're calculating the maximum for is unique. In your example the date field should be unique for each siteName, that is if the IP can't be changed multiple times per millisecond. In my experience this is commonly the case otherwise you don't know which record is the newest anyway. If the history table has an unique index for (site, date), this query is also very fast, index range scan on the history table scanning just the first item can be used.

Either something like this:

"abc" + str(9)

or

"abs{0}".format(9)

or

"abs%d" % (9,)

# retrieving data from url
# only for python 3

import urllib.request

def main():
  url = "http://docs.python.org"

# retrieving data from URL
  webUrl = urllib.request.urlopen(url)
  print("Result code: " + str(webUrl.getcode()))

# print data from URL 
  print("Returned data: -----------------")
  data = webUrl.read().decode("utf-8")
  print(data)

if __name__ == "__main__":
  main()

z-index only works on absolute or relatively positioned elements. I would use an outer div set to position relative. Set the div on top to position absolute to remove it from the flow of the document.

.wrapper {position:relative;width:500px;}_x000D_
_x000D_
.front {_x000D_
  border:3px solid #c00;_x000D_
  background-color:#fff;_x000D_
  width:300px;_x000D_
  position:absolute;_x000D_
  z-index:10;_x000D_
  top:30px;_x000D_
  left:50px;_x000D_
 }_x000D_
  _x000D_
.behind {background-color:#ccc;}

<div class="wrapper">_x000D_
    <p class="front">Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p>_x000D_
    <div class="behind">_x000D_
        <p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.</p>_x000D_
        <table>_x000D_
            <thead>_x000D_
                <tr>_x000D_
                    <th>aaa</th>_x000D_
                    <th>bbb</th>_x000D_
                    <th>ccc</th>_x000D_
                    <th>ddd</th>_x000D_
                </tr>_x000D_
            </thead>_x000D_
            <tbody>_x000D_
                <tr>_x000D_
                    <td>111</td>_x000D_
                    <td>222</td>_x000D_
                    <td>333</td>_x000D_
                    <td>444</td>_x000D_
                </tr>_x000D_
            </tbody>_x000D_
        </table>_x000D_
        <p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.</p>_x000D_
    </div> _x000D_
</div> 

nchar(as.character(q.data$string)) -nchar( gsub("a", "", q.data$string))
[1] 2 1 0

Notice that I coerce the factor variable to character, before passing to nchar. The regex functions appear to do that internally.

Here's benchmark results (with a scaled up size of the test to 3000 rows)

 q.data<-q.data[rep(1:NROW(q.data), 1000),]
 str(q.data)
'data.frame':   3000 obs. of  3 variables:
 $ number     : int  1 2 3 1 2 3 1 2 3 1 ...
 $ string     : Factor w/ 3 levels "greatgreat","magic",..: 1 2 3 1 2 3 1 2 3 1 ...
 $ number.of.a: int  2 1 0 2 1 0 2 1 0 2 ...

 benchmark( Dason = { q.data$number.of.a <- str_count(as.character(q.data$string), "a") },
 Tim = {resT <- sapply(as.character(q.data$string), function(x, letter = "a"){
                            sum(unlist(strsplit(x, split = "")) == letter) }) }, 

 DWin = {resW <- nchar(as.character(q.data$string)) -nchar( gsub("a", "", q.data$string))},
 Josh = {x <- sapply(regmatches(q.data$string, gregexpr("g",q.data$string )), length)}, replications=100)
#-----------------------
   test replications elapsed  relative user.self sys.self user.child sys.child
1 Dason          100   4.173  9.959427     2.985    1.204          0         0
3  DWin          100   0.419  1.000000     0.417    0.003          0         0
4  Josh          100  18.635 44.474940    17.883    0.827          0         0
2   Tim          100   3.705  8.842482     3.646    0.072          0         0

In addition to @JBNizet's answer, my general use case for ifPresent is to combine .isPresent() and .get():

Old way:

Optional opt = getIntOptional();
if(opt.isPresent()) {
    Integer value = opt.get();
    // do something with value
}

New way:

Optional opt = getIntOptional();
opt.ifPresent(value -> {
    // do something with value
})

This, to me, is more intuitive.

As everyone else is pointing out you should probably just pull and then merge the heads, but if you really want to get rid of your commits without any of the EditingHistory tools then you can just hg clone -r your repo to get all but those changes.

This doesn't delete them from the original repository, but it creates a new clone that doesn't have them. Then you can delete the repo you modified (if you'd like).

As mainframer said, you can use grep, but i would use exit status for testing, try this:

#!/bin/bash
# Test if anotherstring is contained in teststring
teststring="put you string here"
anotherstring="string"

echo ${teststring} | grep --quiet "${anotherstring}"
# Exit status 0 means anotherstring was found
# Exit status 1 means anotherstring was not found

if [ $? = 1 ]
then
  echo "$anotherstring was not found"
fi

Below code helps to zoom UIImageView without using UIScrollView :

-(void)HandlePinch:(UIPinchGestureRecognizer*)recognizer{
    if ([recognizer state] == UIGestureRecognizerStateEnded) {
        NSLog(@"======== Scale Applied ===========");
        if ([recognizer scale]<1.0f) {
            [recognizer setScale:1.0f];
        }
        CGAffineTransform transform = CGAffineTransformMakeScale([recognizer scale],  [recognizer scale]);
        imgView.transform = transform;
    }
}

The answer from @laughing_man is quite accurate. But still, I wanted to give a recommendation which I learned from Kafka expert Stephane Maarek.

Kafka isn’t meant to handle large messages.

Your API should use cloud storage (Ex AWS S3), and just push to Kafka or any message broker a reference of S3. You must find somewhere to persist your data, maybe it’s a network drive, maybe it’s whatever, but it shouldn't be message broker.

Now, if you don’t want to go with the above solution

The message max size is 1MB (the setting in your brokers is called message.max.bytes) Apache Kafka. If you really needed it badly, you could increase that size and make sure to increase the network buffers for your producers and consumers.

And if you really care about splitting your message, make sure each message split has the exact same key so that it gets pushed to the same partition, and your message content should report a “part id” so that your consumer can fully reconstruct the message.

You can also explore compression, if your message is text-based (gzip, snappy, lz4 compression) which may reduce the data size, but not magically.

Again, you have to use an external system to store that data and just push an external reference to Kafka. That is a very common architecture and one you should go with and widely accepted.

Keep that in mind Kafka works best only if the messages are huge in amount but not in size.

Source: https://www.quora.com/How-do-I-send-Large-messages-80-MB-in-Kafka

The charset is a property of the database (default) and the table. You can have a look (MySQL commands):

show create database foo; 
> CREATE DATABASE  `foo`.`foo` /*!40100 DEFAULT CHARACTER SET latin1 */

show create table foo.bar;
> lots of stuff ending with
> ) ENGINE=InnoDB AUTO_INCREMENT=252 DEFAULT CHARSET=latin1

In other words; it's quite easy to check your database charset or change it:

ALTER TABLE `foo`.`bar` CHARACTER SET utf8;

create json folder in resources as subfolder then add json file in folder then you can use this code :

import com.fasterxml.jackson.core.type.TypeReference;

InputStream is = TypeReference.class.getResourceAsStream("/json/fcmgoogletoken.json");

this works in Docker.

git commit --amend --date="now"

Real VNC Viewer (5.0.3) - Free :

Options->Expert->UseAllMonitors = True

Maybe something like this:

First some test data:

DECLARE @tbl TABLE(Column1 VARCHAR(100))

INSERT INTO @tbl
SELECT '1/1' UNION ALL
SELECT '1/20' UNION ALL
SELECT '1/2'

Then like this:

SELECT
    SUBSTRING(tbl.Column1,CHARINDEX('/',tbl.Column1)+1,LEN(tbl.Column1))
FROM
    @tbl AS tbl

To view Theme files for ST3, install PackageResourceViewer via PackageControl.

Then, you can use the Ctrl + Shift + P >> PackageResourceViewer: Open Resource to view theme files.

To edit a specific background color, you need to create a new file in your user packages folder Packages/User/SublimeLinter with the same name as the theme currently applied to your sublime text file.

However, if your theme is a 3rd party theme package installed via package control, you can edit the hex value in that file directly, under background. For example:

<dict>
  <dict>
    <key>background</key>
    <string>#073642</string>
  </dict>
</dict>

Otherwise, if you are trying to modify a native sublime theme, add the following to the new file you create (named the same as the native theme, such as Monokai.sublime-color-scheme) with your color choice

{
  "globals":
  {
      "background": "rgb(5,5,5)"
  }
}

Then, you can open the file you wish the syntax / color to be applied to and then go to Syntax-Specific settings (under Preferences) and add the path of the file to the syntax specific settings file like so:

{
    "color_scheme": "Packages/User/SublimeLinter/Monokai.sublime-color-scheme"
}

Note that if you have installed a theme via package control, it probably has the .tmTheme file extension.

If you are wanting to edit the background color of the sidebar to be darker, go to Preferences > Theme > Adaptive.sublime-theme

This my answer based on my personal experience and info gleaned from the accepted answer on this page, if you'd like more information.

Use $push to update document and insert new value inside an array.

find:

db.getCollection('noti').find({})

result for find:

{
    "_id" : ObjectId("5bc061f05a4c0511a9252e88"),
    "count" : 1.0,
    "color" : "green",
    "icon" : "circle",
    "graph" : [ 
        {
            "date" : ISODate("2018-10-24T08:55:13.331Z"),
            "count" : 2.0
        }
    ],
    "name" : "online visitor",
    "read" : false,
    "date" : ISODate("2018-10-12T08:57:20.853Z"),
    "__v" : 0.0
}

update:

db.getCollection('noti').findOneAndUpdate(
   { _id: ObjectId("5bc061f05a4c0511a9252e88") }, 
   { $push: { 
             graph: {
               "date" : ISODate("2018-10-24T08:55:13.331Z"),
               "count" : 3.0
               }  
           } 
   })

result for update:

{
    "_id" : ObjectId("5bc061f05a4c0511a9252e88"),
    "count" : 1.0,
    "color" : "green",
    "icon" : "circle",
    "graph" : [ 
        {
            "date" : ISODate("2018-10-24T08:55:13.331Z"),
            "count" : 2.0
        }, 
        {
            "date" : ISODate("2018-10-24T08:55:13.331Z"),
            "count" : 3.0
        }
    ],
    "name" : "online visitor",
    "read" : false,
    "date" : ISODate("2018-10-12T08:57:20.853Z"),
    "__v" : 0.0
}

By combining Sanjeevakumar Hiremath's and Jeff Mercado's answers you can actually in a way get around the problem when retrieving the icon from a 64-bit process in a 32-bit process.

using System;
using System.Management;
using System.Diagnostics;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int processID = 6680;   // Change for the process you would like to use
            Process process = Process.GetProcessById(processID);
            string path = ProcessExecutablePath(process);
        }

        static private string ProcessExecutablePath(Process process)
        {
            try
            {
                return process.MainModule.FileName;
            }
            catch
            {
                string query = "SELECT ExecutablePath, ProcessID FROM Win32_Process";
                ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);

                foreach (ManagementObject item in searcher.Get())
                {
                    object id = item["ProcessID"];
                    object path = item["ExecutablePath"];

                    if (path != null && id.ToString() == process.Id.ToString())
                    {
                        return path.ToString();
                    }
                }
            }

            return "";
        }
    }
}

This may be a bit slow and doesn't work on every process which lacks a "valid" icon.

Using -j won't work along with the -r option.
So the work-around for it can be this:

cd path/to/parent/dir/;
zip -r complete/path/to/name.zip ./* ;
cd -;

Or in-line version

cd path/to/parent/dir/ && zip -r complete/path/to/name.zip ./* && cd -

you can direct the output to /dev/null if you don't want the cd - output to appear on screen

  public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
private Context context;
private List<cardview_widgets> list;

public MyAdapter(Context context, List<cardview_widgets> list) {
    this.context = context;
    this.list = list;
}

@NonNull
@Override
public MyViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
    View view = LayoutInflater.from(this.context).inflate(R.layout.fragment1_one_item,
            viewGroup, false);
    return new MyViewHolder(view);
}

public static class MyViewHolder extends RecyclerView.ViewHolder {
    TextView txtValue;
    TextView txtCategory;
    ImageView imgInorEx;
    ImageView imgCategory;
    TextView txtDate;

    public MyViewHolder(@NonNull View itemView) {
        super(itemView);
        txtValue= itemView.findViewById(R.id.id_values);
        txtCategory= itemView.findViewById(R.id.id_category);
        imgInorEx= itemView.findViewById(R.id.id_inorex);
        imgCategory= itemView.findViewById(R.id.id_imgcategory);
        txtDate= itemView.findViewById(R.id.id_date);
    }
}

@NonNull
@Override
public void onBindViewHolder(@NonNull final MyViewHolder myViewHolder, int i) {

    myViewHolder.txtValue.setText(String.valueOf(list.get(i).getValuee()));
    myViewHolder.txtCategory.setText(list.get(i).getCategory());
    myViewHolder.imgInorEx.setBackgroundColor(list.get(i).getImg_inorex());
    myViewHolder.imgCategory.setImageResource(list.get(i).getImg_category());
    myViewHolder.txtDate.setText(list.get(i).getDate());
    myViewHolder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            list.remove(myViewHolder.getAdapterPosition());
            notifyDataSetChanged();
            return false;
        }
    });
}

@Override
public int getItemCount() {
    return list.size();
}}      

i hope this help you.

I know this is a very old question but it still doesn't have an accepted answer. I see that you want the following removed: html tags that are "empty" and white spaces based on an html string.

I have come up with a solution based on your comment for the output you are looking for:

Trimming using JavaScript<br /><br /><br /><br />all leading and trailing white spaces 

var str = "<p>&nbsp;&nbsp;</p><div>&nbsp;</div>Trimming using JavaScript<br /><br /><br /><br />all leading and trailing white spaces<p>&nbsp;&nbsp;</p><div>&nbsp;</div>";_x000D_
console.log(str.trim().replace(/&nbsp;/g, '').replace(/<[^\/>][^>]*><\/[^>]+>/g, ""));

.trim() removes leading and trailing whitespace

.replace(/ /g, '') removes  

.replace(/<[^\/>][^>]*><\/[^>]+>/g, "")); removes empty tags

Here's a solution that moves the directives that need to be added dynamically, into the view and also adds some optional (basic) conditional-logic. This keeps the directive clean with no hard-coded logic.

The directive takes an array of objects, each object contains the name of the directive to be added and the value to pass to it (if any).

I was struggling to think of a use-case for a directive like this until I thought that it might be useful to add some conditional logic that only adds a directive based on some condition (though the answer below is still contrived). I added an optional if property that should contain a bool value, expression or function (e.g. defined in your controller) that determines if the directive should be added or not.

I'm also using attrs.$attr.dynamicDirectives to get the exact attribute declaration used to add the directive (e.g. data-dynamic-directive, dynamic-directive) without hard-coding string values to check for.

Plunker Demo

angular.module('plunker', ['ui.bootstrap'])_x000D_
    .controller('DatepickerDemoCtrl', ['$scope',_x000D_
        function($scope) {_x000D_
            $scope.dt = function() {_x000D_
                return new Date();_x000D_
            };_x000D_
            $scope.selects = [1, 2, 3, 4];_x000D_
            $scope.el = 2;_x000D_
_x000D_
            // For use with our dynamic-directive_x000D_
            $scope.selectIsRequired = true;_x000D_
            $scope.addTooltip = function() {_x000D_
                return true;_x000D_
            };_x000D_
        }_x000D_
    ])_x000D_
    .directive('dynamicDirectives', ['$compile',_x000D_
        function($compile) {_x000D_
            _x000D_
             var addDirectiveToElement = function(scope, element, dir) {_x000D_
                var propName;_x000D_
                if (dir.if) {_x000D_
                    propName = Object.keys(dir)[1];_x000D_
                    var addDirective = scope.$eval(dir.if);_x000D_
                    if (addDirective) {_x000D_
                        element.attr(propName, dir[propName]);_x000D_
                    }_x000D_
                } else { // No condition, just add directive_x000D_
                    propName = Object.keys(dir)[0];_x000D_
                    element.attr(propName, dir[propName]);_x000D_
                }_x000D_
            };_x000D_
            _x000D_
            var linker = function(scope, element, attrs) {_x000D_
                var directives = scope.$eval(attrs.dynamicDirectives);_x000D_
        _x000D_
                if (!directives || !angular.isArray(directives)) {_x000D_
                    return $compile(element)(scope);_x000D_
                }_x000D_
               _x000D_
                // Add all directives in the array_x000D_
                angular.forEach(directives, function(dir){_x000D_
                    addDirectiveToElement(scope, element, dir);_x000D_
                });_x000D_
                _x000D_
                // Remove attribute used to add this directive_x000D_
                element.removeAttr(attrs.$attr.dynamicDirectives);_x000D_
                // Compile element to run other directives_x000D_
                $compile(element)(scope);_x000D_
            };_x000D_
        _x000D_
            return {_x000D_
                priority: 1001, // Run before other directives e.g.  ng-repeat_x000D_
                terminal: true, // Stop other directives running_x000D_
                link: linker_x000D_
            };_x000D_
        }_x000D_
    ]);

<!doctype html>_x000D_
<html ng-app="plunker">_x000D_
_x000D_
<head>_x000D_
    <script src="//code.angularjs.org/1.2.20/angular.js"></script>_x000D_
    <script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.6.0.js"></script>_x000D_
    <script src="example.js"></script>_x000D_
    <link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/css/bootstrap-combined.min.css" rel="stylesheet">_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
_x000D_
    <div data-ng-controller="DatepickerDemoCtrl">_x000D_
_x000D_
        <select data-ng-options="s for s in selects" data-ng-model="el" _x000D_
            data-dynamic-directives="[_x000D_
                { 'if' : 'selectIsRequired', 'ng-required' : '{{selectIsRequired}}' },_x000D_
                { 'tooltip-placement' : 'bottom' },_x000D_
                { 'if' : 'addTooltip()', 'tooltip' : '{{ dt() }}' }_x000D_
            ]">_x000D_
            <option value=""></option>_x000D_
        </select>_x000D_
_x000D_
    </div>_x000D_
</body>_x000D_
_x000D_
</html>

Assuming you're using a std::ofstream to write to file, the following snippet will write a std::string to file in human readable form:

std::ofstream file("filename");
std::string my_string = "Hello text in file\n";
file << my_string;

As you can see, 01/01/1970 returns 0, which means it is the lowest possible date.

new Date('1970-01-01Z00:00:00:000') //returns Thu Jan 01 1970 01:00:00 GMT+0100 (Central European Standard Time)
new Date('1970-01-01Z00:00:00:000').getTime() //returns 0
new Date('1970-01-01Z00:00:00:001').getTime() //returns 1

Add a common class to all the div. For example add foo to all the divs.

$('.foo').each(function () {
   $(this).dialog({
    autoOpen: false,
    show: {
      effect: "blind",
      duration: 1000
    },
    hide: {
      effect: "explode",
      duration: 1000
    }
  });
});

You don't need an onclick. Assuming you're using Bootstrap 3 Bootstrap 3 Documentation

<div class="span4 proj-div" data-toggle="modal" data-target="#GSCCModal">Clickable content, graphics, whatever</div>

<div id="GSCCModal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
 <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;  </button>
        <h4 class="modal-title" id="myModalLabel">Modal title</h4>
      </div>
      <div class="modal-body">
        ...
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div>
  </div>
</div>

If you're using Bootstrap 2, you'd follow the markup here: http://getbootstrap.com/2.3.2/javascript.html#modals

You can do that using Linq:

public static string RemoveAllNamespaces(string xmlDocument)
{
    var xml = XElement.Parse(xmlDocument);
    xml.Descendants().Select(o => o.Name = o.Name.LocalName).ToArray();
    return xml.ToString();
}

From the source code:

// Instance of WebViewClient that is the client callback.
private volatile WebViewClient mWebViewClient;
// Instance of WebChromeClient for handling all chrome functions.
private volatile WebChromeClient mWebChromeClient;

// SOME OTHER SUTFFF.......

/**
 * Set the WebViewClient.
 * @param client An implementation of WebViewClient.
 */
public void setWebViewClient(WebViewClient client) {
    mWebViewClient = client;
}

/**
 * Set the WebChromeClient.
 * @param client An implementation of WebChromeClient.
 */
public void setWebChromeClient(WebChromeClient client) {
    mWebChromeClient = client;
}

Using WebChromeClient allows you to handle Javascript dialogs, favicons, titles, and the progress. Take a look of this example: Adding alert() support to a WebView

At first glance, there are too many differences WebViewClient & WebChromeClient. But, basically: if you are developing a WebView that won't require too many features but rendering HTML, you can just use a WebViewClient. On the other hand, if you want to (for instance) load the favicon of the page you are rendering, you should use a WebChromeClient object and override the onReceivedIcon(WebView view, Bitmap icon).

Most of the times, if you don't want to worry about those things... you can just do this:

webView= (WebView) findViewById(R.id.webview); 
webView.setWebChromeClient(new WebChromeClient()); 
webView.setWebViewClient(new WebViewClient()); 
webView.getSettings().setJavaScriptEnabled(true); 
webView.loadUrl(url); 

And your WebView will (in theory) have all features implemented (as the android native browser).

$num_result = mysql_query("SELECT count(*) as total_count from Students ") or exit(mysql_error());
$row = mysql_fetch_object($num_result);
echo $row->total_count;

If you use IntelliJ IDEA you can browse all maven goals/tasks (including plugins) in Maven Projects tab:

I use this technique for pagination. I do not fetch all the rows. For example, if my page needs to display the top 100 rows I fetch only the 100 with where clause. The output of the SQL should have a unique key.

The table has the following:

ID, KeyId, Rank

The same rank will be assigned for more than one KeyId.

SQL is select top 2 * from Table1 where Rank >= @Rank and ID > @Id

For the first time I pass 0 for both. The second time pass 1 & 14. 3rd time pass 2 and 6....

The value of the 10th record Rank & Id is passed to the next

11  21  1
14  22  1
7   11  1
6   19  2
12  31  2
13  18  2

This will have the least stress on the system

Mac OS X

I had this problem too (encountered through Macports compilers). Previous versions of Xcode would let you install command line tools through xcode/Preferences, but xcode5 doesn't give a command line tools option in the GUI, that so I assumed it was automatically included now. Try running this command:

xcode-select --install

Ubuntu

(as per this answer)

sudo apt-get install libc6-dev

Alpine Linux

(as per this comment)

apk add libc-dev

To overcome the space in 'switch ()', you can use code :

Blade::extend(function($value, $compiler){
    $value = preg_replace('/(\s*)@switch[ ]*\((.*)\)(?=\s)/', '$1<?php switch($2):', $value);
    $value = preg_replace('/(\s*)@endswitch(?=\s)/', '$1endswitch; ?>', $value);
    $value = preg_replace('/(\s*)@case[ ]*\((.*)\)(?=\s)/', '$1case $2: ?>', $value);
    $value = preg_replace('/(?<=\s)@default(?=\s)/', 'default: ?>', $value);
    $value = preg_replace('/(?<=\s)@breakswitch(?=\s)/', '<?php break;', $value);
    return $value;
  });

Try

Date.ParseExact("9/1/2009", "M/d/yyyy", new CultureInfo("en-US"))

Sample DF:

In [79]: df = pd.DataFrame(np.random.randint(5, 15, (10, 3)), columns=list('abc'))

In [80]: df
Out[80]:
    a   b   c
0   6  11  11
1  14   7   8
2  13   5  11
3  13   7  11
4  13   5   9
5   5  11   9
6   9   8   6
7   5  11  10
8   8  10  14
9   7  14  13

present only those rows where b > 10

In [81]: df[df.b > 10]
Out[81]:
   a   b   c
0  6  11  11
5  5  11   9
7  5  11  10
9  7  14  13

Minimums (for all columns) for the rows satisfying b > 10 condition

In [82]: df[df.b > 10].min()
Out[82]:
a     5
b    11
c     9
dtype: int32

Minimum (for the b column) for the rows satisfying b > 10 condition

In [84]: df.loc[df.b > 10, 'b'].min()
Out[84]: 11

UPDATE: starting from Pandas 0.20.1 the .ix indexer is deprecated, in favor of the more strict .iloc and .loc indexers.

I found the following slightly altered range useful for parsing comment blocks out of a database, this means that you won't have to contend with tab and escape characters which would cause a CSV field to become upset.

parsememo = Regex.Replace(parsememo, @"[^\u001F-\u007F]", string.Empty);

If you want to avoid other special characters or particular punctuation check the ascii table

I think you are getting confused with your site Authentication and SSL.

If you need to get your site into SSL, then you would need to install a SSL certificate into your web server. You can buy a certificate for yourself from one of the places like Symantec etc. The certificate would contain your public/private key pair, along with other things.

You wont need to do anything in your source code, and you can still continue to use your Form Authntication (or any other) in your site. Its just that, any data communication that takes place between the web server and the client will encrypted and signed using your certificate. People would use secure-HTTP (https://) to access your site.

View this for more info --> http://en.wikipedia.org/wiki/Transport_Layer_Security

The is operator evaluates to a boolean result, so you can do anything you would otherwise be able to do on a bool. To negate it use the ! operator. Why would you want to have a different operator just for this?

You are trying to index into a scalar (non-iterable) value:

[y[1] for y in y_test]
#  ^ this is the problem

When you call [y for y in test] you are iterating over the values already, so you get a single value in y.

Your code is the same as trying to do the following:

y_test = [1, 2, 3]
y = y_test[0] # y = 1
print(y[0]) # this line will fail

I'm not sure what you're trying to get into your results array, but you need to get rid of [y[1] for y in y_test].

If you want to append each y in y_test to results, you'll need to expand your list comprehension out further to something like this:

[results.append(..., y) for y in y_test]

Or just use a for loop:

for y in y_test:
    results.append(..., y)

Here is a solution that does not require a SQL context, but maintains the metadata of a DataFrame.

a = sc.parallelize([['a', 'foo'], ['b', 'hem'], ['c', 'haw']]).toDF(['a_id', 'extra'])
b = sc.parallelize([['p1', 'a'], ['p2', 'b'], ['p3', 'c']]).toDF(["other", "b_id"])

c = a.join(b, a.a_id == b.b_id)

Then, c.show() yields:

+----+-----+-----+----+
|a_id|extra|other|b_id|
+----+-----+-----+----+
|   a|  foo|   p1|   a|
|   b|  hem|   p2|   b|
|   c|  haw|   p3|   c|
+----+-----+-----+----+

Installing vc_redist.x86.exe works for me even though you have a 64-bit machine.

The problem was that you needed to add " ' ;" at the end.

It fires in this order.

1. = (exactly)

   location = /path

2. ^~ (forward match)

   location ^~ /path

3. ~ (regular expression case sensitive)

   location ~ /path/

4. ~* (regular expression case insensitive)

   location ~* .(jpg|png|bmp)

5. /

   location /path

Run this script to refresh data in materialized view:

BEGIN
DBMS_SNAPSHOT.REFRESH('Name here');
END;

For running on stock iOS devices, make your app an audio player/recorder or a VOIP app, a legitimate one for submitting to the App store, or a fake one if only for your own use.

Even this won't make an app "fully operational" whatever that is, but restricted to limited APIs.

You could use:

with open('data.txt', 'r') as file:
    data = file.read().replace('\n', '')

First up, this has got nothing to do with String, it is about arrays.. and that too specifically about declarative initialization of arrays.

As discussed by everyone in almost every answer here, you can, while declaring a variable, use:

String names[] = {"x","y","z"};

However, post declaration, if you want to assign an instance of an Array:

names = new String[] {"a","b","c"};

AFAIK, the declaration syntax is just a syntactic sugar and it is not applicable anymore when assigning values to variables because when values are assigned you need to create an instance properly.

However, if you ask us why it is so? Well... good luck getting an answer to that. Unless someone from the Java committee answers that or there is explicit documentation citing the said syntactic sugar.

To avoid Special Characters in input type

public static InputFilter filter = new InputFilter() {
    @Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
        String blockCharacterSet = "~#^|$%*!@/()-'\":;,?{}=!$^';,?×÷<>{}€£¥?%~`¤??_|«»¡¿°•???¦???????????????:-);-):-D:-(:'(:O 1234567890";
        if (source != null && blockCharacterSet.contains(("" + source))) {
            return "";
        }
        return null;
    }
};

You can set filter to your edit text like below

edtText.setFilters(new InputFilter[] { filter });

This was my solution using a directive which seems more Angular-y because we're dealing with the DOM:

Plnkr over here

github

CODE

angular.module('app', [])
.directive('scrollTo', function ($location, $anchorScroll) {
  return function(scope, element, attrs) {

    element.bind('click', function(event) {
        event.stopPropagation();
        var off = scope.$on('$locationChangeStart', function(ev) {
            off();
            ev.preventDefault();
        });
        var location = attrs.scrollTo;
        $location.hash(location);
        $anchorScroll();
    });

  };
});

HTML

<ul>
  <li><a href="" scroll-to="section1">Section 1</a></li>
  <li><a href="" scroll-to="section2">Section 2</a></li>
</ul>

<h1 id="section1">Hi, I'm section 1</h1>
<p>
Zombie ipsum reversus ab viral inferno, nam rick grimes malum cerebro. De carne lumbering animata corpora quaeritis. 
 Summus brains sit??, morbo vel maleficia? De apocalypsi gorger omero undead survivor dictum mauris. 
Hi mindless mortuis soulless creaturas, imo evil stalking monstra adventus resi dentevil vultus comedat cerebella viventium. 
Nescio brains an Undead zombies. Sicut malus putrid voodoo horror. Nigh tofth eliv ingdead.
</p>

<h1 id="section2">I'm totally section 2</h1>
<p>
Zombie ipsum reversus ab viral inferno, nam rick grimes malum cerebro. De carne lumbering animata corpora quaeritis. 
 Summus brains sit??, morbo vel maleficia? De apocalypsi gorger omero undead survivor dictum mauris. 
Hi mindless mortuis soulless creaturas, imo evil stalking monstra adventus resi dentevil vultus comedat cerebella viventium. 
Nescio brains an Undead zombies. Sicut malus putrid voodoo horror. Nigh tofth eliv ingdead.
</p>

I used the $anchorScroll service. To counteract the page-refresh that goes along with the hash changing I went ahead and cancelled the locationChangeStart event. This worked for me because I had a help page hooked up to an ng-switch and the refreshes would esentially break the app.

SnowsPenultimateNormalityTest certainly has its virtues, but you may also want to look at qqnorm.

X <- rlnorm(100)
qqnorm(X)
qqnorm(rnorm(100))

As I tussled with this, TryParse in 3.5 does have NumberStyles: The following code should also do the trick without Regex to ignore thousands seperator.

double.TryParse(length, NumberStyles.AllowDecimalPoint,CultureInfo.CurrentUICulture, out lengthD))

Not relevant to the original question asked but confirming that TryParse() indeed is a good option.

This is relatively new to C# which makes it easy for us to call the functions with respect to the null or non-null values in method chaining.

old way to achieve the same thing was:

var functionCaller = this.member;
if (functionCaller!= null)
    functionCaller.someFunction(var someParam);

and now it has been made much easier with just:

member?.someFunction(var someParam);

I strongly recommend this doc page.

for loop:

 1) need to specify the loop bounds( minimum or maximum).

  2) executes a statement or a block of statements repeatedly 
    until a specified expression evaluates to false.

Ex1:-

int K = 0;

for (int x = 1; x <= 9; x++){
        k = k + x ;
}

foreach statement:

1)do not need to specify the loop bounds minimum or maximum.

2)repeats a group of embedded statements for 
     a)each element in an array 
  or b) an object collection.       

Ex2:-

int k = 0;

int[] tempArr = new int[] { 0, 2, 3, 8, 17 };

foreach (int i in tempArr){
    k = k + i ;
}

Maybe it can help
Convert one codepage to another:

    public static string fnStringConverterCodepage(string sText, string sCodepageIn = "ISO-8859-8", string sCodepageOut="ISO-8859-8")
    {
        string sResultado = string.Empty;
        try
        {
            byte[] tempBytes;
            tempBytes = System.Text.Encoding.GetEncoding(sCodepageIn).GetBytes(sText);
            sResultado = System.Text.Encoding.GetEncoding(sCodepageOut).GetString(tempBytes);
        }
        catch (Exception)
        {
            sResultado = "";
        }
        return sResultado;
    }

Usage:

string sMsg = "ERRO: Não foi possivel acessar o servico de Autenticação";
var sOut = fnStringConverterCodepage(sMsg ,"ISO-8859-1","UTF-8"));

Output:

"Não foi possivel acessar o servico de Autenticação"

If you will call min() around 1kk times with different a, b, c, then use my method:

Here only two comparisons. There is no way to calc faster :P

public static double min(double a, double b, double c) {
    if (a > b) {     //if true, min = b
        if (b > c) { //if true, min = c
            return c;
        } else {     //else min = b
            return b; 
        }
    }          //else min = a
    if (a > c) {  // if true, min=c
        return c;
    } else {
        return a;
    }
}

If you did a new or clean install of OS X version 10.3 or more recent, the default user terminal shell is bash.

Bash is essentially an enhanced and GNU freeware version of the original Bourne shell, sh. If you have previous experience with bash (often the default on GNU/Linux installations), this makes the OS X command-line experience familiar, otherwise consider switching your shell either to tcsh or to zsh, as some find these more user-friendly.

If you upgraded from or use OS X version 10.2.x, 10.1.x or 10.0.x, the default user shell is tcsh, an enhanced version of csh('c-shell'). Early implementations were a bit buggy and the programming syntax a bit weird so it developed a bad rap.

There are still some fundamental differences between mac and linux as Gordon Davisson so aptly lists, for example no useradd on Mac and ifconfig works differently.

The following table is useful for knowing the various unix shells.

sh      The original Bourne shell   Present on every unix system 
ksh     Original Korn shell         Richer shell programming environment than sh 
csh     Original C-shell            C-like syntax; early versions buggy 
tcsh    Enhanced C-shell            User-friendly and less buggy csh implementation 
bash    GNU Bourne-again shell      Enhanced and free sh implementation 
zsh     Z shell                     Enhanced, user-friendly ksh-like shell

You may also find these guides helpful:

http://homepage.mac.com/rgriff/files/TerminalBasics.pdf

http://guides.macrumors.com/Terminal
http://www.ofb.biz/safari/article/476.html

On a final note, I am on Linux (Ubuntu 11) and Mac osX so I use bash and the thing I like the most is customizing the .bashrc (source'd from .bash_profile on OSX) file with aliases, some examples below. I now placed all my aliases in a separate .bash_aliases file and include it with:

if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

in the .bashrc or .bash_profile file.

Note that this is an example of a mac-linux difference because on a Mac you can't have the --color=auto. The first time I did this (without knowing) I redefined ls to be invalid which was a bit alarming until I removed --auto-color !

You may also find https://unix.stackexchange.com/q/127799/10043 useful

# ~/.bash_aliases
# ls variants
#alias l='ls -CF' 
alias la='ls -A' 
alias l='ls -alFtr' 
alias lsd='ls -d .*' 
# Various
alias h='history | tail'
alias hg='history | grep'
alias mv='mv -i' 
alias zap='rm -i'
# One letter quickies:
alias p='pwd'
alias x='exit'
alias {ack,ak}='ack-grep'
# Directories
alias s='cd ..'
alias play='cd ~/play/'
# Rails
alias src='script/rails console'
alias srs='script/rails server'
alias raked='rake db:drop db:create db:migrate db:seed' 
alias rvm-restart='source '\''/home/durrantm/.rvm/scripts/rvm'\'''
alias rrg='rake routes | grep '
alias rspecd='rspec --drb '
#
# DropBox - syncd
WORKBASE="~/Dropbox/97_2012/work"
alias work="cd $WORKBASE"
alias code="cd $WORKBASE/ror/code"
#
# DropNot - NOT syncd !
WORKBASE_GIT="~/Dropnot"
alias {dropnot,not}="cd $WORKBASE_GIT"
alias {webs,ww}="cd $WORKBASE_GIT/webs"
alias {setups,docs}="cd $WORKBASE_GIT/setups_and_docs"
alias {linker,lnk}="cd $WORKBASE_GIT/webs/rails_v3/linker"
#
# git
alias {gsta,gst}='git status' 
# Warning: gst conflicts with gnu-smalltalk (when used).
alias {gbra,gb}='git branch'
alias {gco,go}='git checkout'
alias {gcob,gob}='git checkout -b '
alias {gadd,ga}='git add '
alias {gcom,gc}='git commit'
alias {gpul,gl}='git pull '
alias {gpus,gh}='git push '
alias glom='git pull origin master'
alias ghom='git push origin master'
alias gg='git grep '
#
# vim
alias v='vim'
#
# tmux
alias {ton,tn}='tmux set -g mode-mouse on'
alias {tof,tf}='tmux set -g mode-mouse off'
#
# dmc
alias {dmc,dm}='cd ~/Dropnot/webs/rails_v3/dmc/'
alias wf='cd ~/Dropnot/webs/rails_v3/dmc/dmWorkflow'
alias ws='cd ~/Dropnot/webs/rails_v3/dmc/dmStaffing'

   extend = function(destination, source) {   
          for (var property in source) {
            destination[property] = source[property];
          }
          return destination;
    };

Extending JavaScript

You could also add filters into the for loop.

I encountered this error when running my Android app on my home WiFi, then trying to run it on different WiFi without closing my simulator.

Simply closing the simulator and re-launching the app worked for me!

If you look to run a method on ngOnInit you could do something like this:

import this 2 libraries from RXJS:

import {Observable} from 'rxjs/Rx';
import {Subscription} from "rxjs";

Then declare timer and private subscription, example:

timer= Observable.timer(1000,1000); // 1 second for 2 seconds (2000,1000) etc
private subscription: Subscription;

Last but not least run method when timer stops

ngOnInit() {
  this.subscription = this.timer.subscribe(ticks=> {
    this.populatecombobox();  //example calling a method that populates a combobox
    this.subscription.unsubscribe();  //you need to unsubscribe or it will run infinite times
  });
}

That's all, Angular 5

The above code works well but if you want to navigate from an NSObject class, where you can not use self.present:

let storyBoard = UIStoryboard(name:"Main", bundle: nil)
if let conVC = storyBoard.instantiateViewController(withIdentifier: "SoundViewController") as? SoundViewController,
    let navController = UIApplication.shared.keyWindow?.rootViewController as? UINavigationController {
    
    navController.pushViewController(conVC, animated: true)
}

It is standard matplotlib.pyplot:

...
import matplotlib.pyplot as plt
plt.ylim(10, 40)

Or simpler, as mwaskom comments below:

ax.set(ylim=(10, 40))

A connect failed: ECONNREFUSED (Connection refused) most likely means that there is nothing listening on that port AND that IP address. Possible explanations include:

• the service has crashed or hasn't been (successfully!) started,
• your client is trying to connect using the wrong IP address or port,
• your client is trying to connect using a DNS name that resolves to the wrong IP, or
• server access is being blocked by a firewall that is "refusing" on the server/service's behalf. This is pretty unlikely given that normal practice (these days) is for firewalls to "blackhole" all unwanted connection attempts.

Note that while you have an array variable called urls, it cannot contain real URLs. There is no overload of the Socket constructor that takes a real URL in any form. Indeed, if you supplied a URL in string form like this:

 new Socket("http://example.com", 42)

the result would be a different exception. Likewise, if you attempt to connect to an IP address on a network that you can't route to (e.g. "a different WiFi network"), then you will get a different exception; e.g. "host not found", "no route to host" or "no route to network".

You are trying to execute an asynchronous function in a synchronous way, which is unfortunately not possible in Javascript.

As you guessed correctly, the roomId=results.... is executed when the loading from the DB completes, which is done asynchronously, so AFTER the resto of your code is completed.

Look at this article, it talks about .insert and not .find, but the idea is the same : http://metaduck.com/01-asynchronous-iteration-patterns.html

To delete all DBs use:

for i in $(mongo --quiet --host $HOSTNAME --eval "db.getMongo().getDBNames()" | tr "," " ");

do mongo $i --host $HOSTNAME --eval "db.dropDatabase()";

done 

Path Variables dialog has nothing to do with the environment variables.

Environment variables can be specified in your OS or customized in the Run configuration:

If you know that a parameter will definitely be either an array or an object, it may be easier to check for an array compared to checking for an object with something like this.

function myIsArray (arr) {
    return (arr.constructor === Array);
}

Here is a function that I have in my PowerShell profile for loading SQL snapins:

function Load-SQL-Server-Snap-Ins
{
    try 
    {
        $sqlpsreg="HKLM:\SOFTWARE\Microsoft\PowerShell\1\ShellIds\Microsoft.SqlServer.Management.PowerShell.sqlps"

        if (!(Test-Path $sqlpsreg -ErrorAction "SilentlyContinue"))
        {
            throw "SQL Server Powershell is not installed yet (part of SQLServer installation)."
        }

        $item = Get-ItemProperty $sqlpsreg
        $sqlpsPath = [System.IO.Path]::GetDirectoryName($item.Path)

        $assemblyList = @(
            "Microsoft.SqlServer.Smo",
            "Microsoft.SqlServer.SmoExtended",
            "Microsoft.SqlServer.Dmf",
            "Microsoft.SqlServer.WmiEnum",
            "Microsoft.SqlServer.SqlWmiManagement",
            "Microsoft.SqlServer.ConnectionInfo ",
            "Microsoft.SqlServer.Management.RegisteredServers",
            "Microsoft.SqlServer.Management.Sdk.Sfc",
            "Microsoft.SqlServer.SqlEnum",
            "Microsoft.SqlServer.RegSvrEnum",
            "Microsoft.SqlServer.ServiceBrokerEnum",
            "Microsoft.SqlServer.ConnectionInfoExtended",
            "Microsoft.SqlServer.Management.Collector",
            "Microsoft.SqlServer.Management.CollectorEnum"
        )

        foreach ($assembly in $assemblyList)
        { 
            $assembly = [System.Reflection.Assembly]::LoadWithPartialName($assembly) 
            if ($assembly -eq $null)
                { Write-Host "`t`t($MyInvocation.InvocationName): Could not load $assembly" }
        }

        Set-Variable -scope Global -name SqlServerMaximumChildItems -Value 0
        Set-Variable -scope Global -name SqlServerConnectionTimeout -Value 30
        Set-Variable -scope Global -name SqlServerIncludeSystemObjects -Value $false
        Set-Variable -scope Global -name SqlServerMaximumTabCompletion -Value 1000

        Push-Location

         if ((Get-PSSnapin -Name SqlServerProviderSnapin100 -ErrorAction SilentlyContinue) -eq $null) 
        { 
            cd $sqlpsPath

            Add-PsSnapin SqlServerProviderSnapin100 -ErrorAction Stop
            Add-PsSnapin SqlServerCmdletSnapin100 -ErrorAction Stop
            Update-TypeData -PrependPath SQLProvider.Types.ps1xml
            Update-FormatData -PrependPath SQLProvider.Format.ps1xml
        }
    } 

    catch 
    {
        Write-Host "`t`t$($MyInvocation.InvocationName): $_" 
    }

    finally
    {
        Pop-Location
    }
}

If you want to use a specific transform function, then all you need to do is include that function in the value. For example:

$('.user-text').css('transform', 'scale(' + ui.value + ')');

Secondly, browser support is getting better, but you'll probably still need to use vendor prefixes like so:

$('.user-text').css({
  '-webkit-transform' : 'scale(' + ui.value + ')',
  '-moz-transform'    : 'scale(' + ui.value + ')',
  '-ms-transform'     : 'scale(' + ui.value + ')',
  '-o-transform'      : 'scale(' + ui.value + ')',
  'transform'         : 'scale(' + ui.value + ')'
});

jsFiddle with example: http://jsfiddle.net/jehka/230/

Both ways are viable, but they do different things when it comes to inheritance with an overridden static method. Choose the one whose behavior you expect:

class Super {
  static whoami() {
    return "Super";
  }
  lognameA() {
    console.log(Super.whoami());
  }
  lognameB() {
    console.log(this.constructor.whoami());
  }
}
class Sub extends Super {
  static whoami() {
    return "Sub";
  }
}
new Sub().lognameA(); // Super
new Sub().lognameB(); // Sub

Referring to the static property via the class will be actually static and constantly give the same value. Using this.constructor instead will use dynamic dispatch and refer to the class of the current instance, where the static property might have the inherited value but could also be overridden.

This matches the behavior of Python, where you can choose to refer to static properties either via the class name or the instance self.

If you expect static properties not to be overridden (and always refer to the one of the current class), like in Java, use the explicit reference.

Also check /etc/exports. If you are exporting paths within the mountpoint via NFS, it will give this error when trying to unmount and nothing will show up in fuser or lsof.

I was working in Wildfly but I was using

org.hibernate.Session session = ((org.hibernate.ejb.EntityManagerImpl) em.getDelegate()).getSession();

and the correct was

org.hibernate.Session session = (Session) manager.getDelegate();

From the ISO draft for C++ (ISO/IEC JTC 1/SC 22 N 4411)

So destructors should generally catch exceptions and not let them propagate out of the destructor.

3 The process of calling destructors for automatic objects constructed on the path from a try block to a throw- expression is called “stack unwinding.” [ Note: If a destructor called during stack unwinding exits with an exception, std::terminate is called (15.5.1). So destructors should generally catch exceptions and not let them propagate out of the destructor. — end note ]

With HttpWebRequest.GetRequestStream

Code example from http://msdn.microsoft.com/en-us/library/d4cek6cc.aspx

string postData = "firstone=" + inputData;
ASCIIEncoding encoding = new ASCIIEncoding ();
byte[] byte1 = encoding.GetBytes (postData);

// Set the content type of the data being posted.
myHttpWebRequest.ContentType = "application/x-www-form-urlencoded";

// Set the content length of the string being posted.
myHttpWebRequest.ContentLength = byte1.Length;

Stream newStream = myHttpWebRequest.GetRequestStream ();

newStream.Write (byte1, 0, byte1.Length);

From one of my own code:

var request = (HttpWebRequest)WebRequest.Create(uri);
request.Credentials = this.credentials;
request.Method = method;
request.ContentType = "application/atom+xml;type=entry";
using (Stream requestStream = request.GetRequestStream())
using (var xmlWriter = XmlWriter.Create(requestStream, new XmlWriterSettings() { Indent = true, NewLineHandling = NewLineHandling.Entitize, }))
{
    cmisAtomEntry.WriteXml(xmlWriter);
}

try 
{    
    return (HttpWebResponse)request.GetResponse();  
}
catch (WebException wex)
{
    var httpResponse = wex.Response as HttpWebResponse;
    if (httpResponse != null)
    {
        throw new ApplicationException(string.Format(
            "Remote server call {0} {1} resulted in a http error {2} {3}.",
            method,
            uri,
            httpResponse.StatusCode,
            httpResponse.StatusDescription), wex);
    }
    else
    {
        throw new ApplicationException(string.Format(
            "Remote server call {0} {1} resulted in an error.",
            method,
            uri), wex);
    }
}
catch (Exception)
{
    throw;
}

in python sorted works like you want with integers:

>>> sorted([10,3,2])
[2, 3, 10]

it looks like you have a problem because you are using strings:

>>> sorted(['10','3','2'])
['10', '2', '3']

(because string ordering starts with the first character, and "1" comes before "2", no matter what characters follow) which can be fixed with key=int

>>> sorted(['10','3','2'], key=int)
['2', '3', '10']

which converts the values to integers during the sort (it is called as a function - int('10') returns the integer 10)

and as suggested in the comments, you can also sort the list itself, rather than generating a new one:

>>> l = ['10','3','2']
>>> l.sort(key=int)
>>> l
['2', '3', '10']

but i would look into why you have strings at all. you should be able to save and retrieve integers. it looks like you are saving a string when you should be saving an int? (sqlite is unusual amongst databases, in that it kind-of stores data in the same type as it is given, even if the table column type is different).

and once you start saving integers, you can also get the list back sorted from sqlite by adding order by ... to the sql command:

select temperature from temperatures order by temperature;

Get PHP SDK from github and run the following code:

<?php
$attachment = array(
    'message' => 'this is my message',
    'name' => 'This is my demo Facebook application!',
    'caption' => "Caption of the Post",
    'link' => 'http://mylink.com',
    'description' => 'this is a description',
    'picture' => 'http://mysite.com/pic.gif',
    'actions' => array(
        array(
            'name' => 'Get Search',
            'link' => 'http://www.google.com'
        )
    )
);

$result = $facebook->api('/me/feed/', 'post', $attachment);

the above code will Post the message on to your wall... and if you want to post onto your friends or others wall then replace me with the Facebook User Id of that user..for further information look out the API Documentation.

There are a couple of things wrong in this code:

1. You're using <input> the wrong way. You should use a <label> if you want to make the text behind it clickable.
2. It's setting the enabled attribute, which does not exist. Use disabled instead.
3. If it would be an attribute, it's value should not be false, use disabled="disabled" or simply disabled without a value.
4. If checking for someone clicking on a form event that will CHANGE it's value (like check-boxes and radio-buttons), use .change() instead.

I'm not sure what your code is supposed to do. My guess is that you want to disable the input field with class roomNumber once someone selects "Walk in" (and possibly re-enable when deselected). If so, try this code:

HTML:

<form class="type">
    <p>
        <input type="radio" name="type" checked="checked" id="guest" value="guest" />
        <label for="guest">In House</label>
    </p>
    <p>
        <input type="radio" name="type" id="walk_in" value="walk_in" />
        <label for="walk_in">Walk in</label>
    </p>
    <p>
        <input type="text" name="roomnumber" class="roomNumber" value="12345" />
    </p>
</form>

Javascript:

$("form input:radio").change(function () {
    if ($(this).val() == "walk_in") {
        // Disable your roomnumber element here
        $('.roomNumber').attr('disabled', 'disabled');
    } else {
        // Re-enable here I guess
        $('.roomNumber').removeAttr('disabled');
    }
});

I created a fiddle here: http://jsfiddle.net/k28xd/1/

If you want to format the JSON and also do some syntax highlighting, you can use the ng-prettyjson directive. See the npm package.

Here is how to use it: <pre pretty-json="jsonObject"></pre>

(something else) should be a.Country

if Country is nullable then make(something else) be a.Country OR a.Country is NULL

Quoting from the gcc website:

C++11 features are available as part of the "mainline" GCC compiler in the trunk of GCC's Subversion repository and in GCC 4.3 and later. To enable C++0x support, add the command-line parameter -std=c++0x to your g++ command line. Or, to enable GNU extensions in addition to C++0x extensions, add -std=gnu++0x to your g++ command line. GCC 4.7 and later support -std=c++11 and -std=gnu++11 as well.

So probably you use a version of g++ which doesn't support -std=c++11. Try -std=c++0x instead.

Availability of C++11 features is for versions >= 4.3 only.

You need to wrap your linear layout with a scroll view

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/scroll" 
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout 
        android:id="@+id/container" 
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">


    </LinearLayout>
</ScrollView>

Parse the JSONObject and create HashMap

public static void jsonToMap(String t) throws JSONException {

        HashMap<String, String> map = new HashMap<String, String>();
        JSONObject jObject = new JSONObject(t);
        Iterator<?> keys = jObject.keys();

        while( keys.hasNext() ){
            String key = (String)keys.next();
            String value = jObject.getString(key); 
            map.put(key, value);

        }

        System.out.println("json : "+jObject);
        System.out.println("map : "+map);
    }

Tested output:

json : {"phonetype":"N95","cat":"WP"}
map : {cat=WP, phonetype=N95}

If your string is a file path, as in your example, you can also use Unix style file paths:

string foo = "D:/Projects/Some/Kind/Of/Pathproblem/wuhoo.xml";

But the other answers have the more general solutions to string escaping in C#.

This converts all text in columns of an Excel Workbook to numbers.

Sub ConvertTextToNumbers()
Dim wBook As Workbook
Dim LastRow As Long, LastCol As Long
Dim Rangetemp As Range

'Enter here the path of your workbook
Set wBook = Workbooks.Open("yourWorkbook")
LastRow = Cells.Find(What:="*", After:=Range("A1"), SearchOrder:=xlByRows, SearchDirection:=xlPrevious).Row
LastCol = Cells.Find(What:="*", After:=Range("A1"), SearchOrder:=xlByColumns, SearchDirection:=xlPrevious).Column

For c = 1 To LastCol
Set Rangetemp = Cells(c).EntireColumn
Rangetemp.TextToColumns DataType:=xlDelimited, _
    TextQualifier:=xlDoubleQuote, ConsecutiveDelimiter:=False, Tab:=True, _
    Semicolon:=False, Comma:=False, Space:=False, Other:=False, FieldInfo _
    :=Array(1, 1), TrailingMinusNumbers:=True
Next c
End Sub

Or add this part

<script type="text/javascript">

    var mySpan = document.createElement("span");
    mySpan.innerHTML = "This is my span!";

    mySpan.style.color = "red";
    document.body.appendChild(mySpan);

    alert("Why does the span change after this alert? Not before?");

</script>

after the HTML, like:

    <html>
    <head>...</head>
    <body>...</body>
   <script type="text/javascript">
        var mySpan = document.createElement("span");
        mySpan.innerHTML = "This is my span!";

        mySpan.style.color = "red";
        document.body.appendChild(mySpan);

        alert("Why does the span change after this alert? Not before?");

    </script>

    </html>

SimpleListAdapter's are primarily used for static data! If you want to handle dynamic data, you're better off working with an ArrayAdapter, ListAdapter or with a CursorAdapter if your data is coming in from the database.

Here's a useful tutorial in understanding binding data in a ListAdapter

As referenced in this SO question

I have had good success using Spring WS for the client end of a web service app - see http://static.springsource.org/spring-ws/sites/1.5/reference/html/client.html

My project uses a combination of:

• XMLBeans (generated from a simple Maven job using the xmlbeans-maven-plugin)

• Spring WS - using marshalSendAndReceive() reduces the code down to one line for sending and receiving

• some Dozer - mapping the complex XMLBeans to simple beans for the client GUI

If you simply need a new byte array, then use the following:

byte[] Combine(byte[] a1, byte[] a2, byte[] a3)
{
    byte[] ret = new byte[a1.Length + a2.Length + a3.Length];
    Array.Copy(a1, 0, ret, 0, a1.Length);
    Array.Copy(a2, 0, ret, a1.Length, a2.Length);
    Array.Copy(a3, 0, ret, a1.Length + a2.Length, a3.Length);
    return ret;
}

Alternatively, if you just need a single IEnumerable, consider using the C# 2.0 yield operator:

IEnumerable<byte> Combine(byte[] a1, byte[] a2, byte[] a3)
{
    foreach (byte b in a1)
        yield return b;
    foreach (byte b in a2)
        yield return b;
    foreach (byte b in a3)
        yield return b;
}

[DefaultValue(None)]
public enum Orientation
{
    None = -1,
    North = 0,
    East = 1,
    South = 2,
    West = 3
}

Then in the code you can use

public Orientation GetDefaultOrientation()
{
   return default(Orientation);
} 

You need to use <script type="text/javascript"> </script> unless you're using html5. In that case you are encouraged to prefer <script> ... </script> (because type attribute is specified by default to that value)

If you are working with ASP.NET MVC, you can solve the problem by adding the MaxJsonLength to your result:

var jsonResult = Json(new
{
    draw = param.Draw,
    recordsTotal = count,
    recordsFiltered = count,
    data = result
}, JsonRequestBehavior.AllowGet);
jsonResult.MaxJsonLength = int.MaxValue;

If its a SOAP 1.1 service then you will also need to include a SOAPAction HTTP header field:

http://www.w3.org/TR/2000/NOTE-SOAP-20000508/#_Toc478383528

I could do this in a JUnit Test Setup.

I wanted to test a Hibernate facade so I was looking for a generic way to do it. Note that the facade also implements a generic interface. Here T is the database class and U the primary key. Ifacade<T,U> is a facade to access the database object T with the primary key U.

public abstract class GenericJPAController<T, U, C extends IFacade<T,U>>

{
    protected static EntityManagerFactory emf;

    /* The properties definition is straightforward*/
    protected T testObject;
    protected C facadeManager;

    @BeforeClass
    public static void setUpClass() {


        try {
            emf = Persistence.createEntityManagerFactory("my entity manager factory");

        } catch (Throwable ex) {
            System.err.println("Failed to create sessionFactory object." + ex);
            throw new ExceptionInInitializerError(ex);
        }

    }

    @AfterClass
    public static void tearDownClass() {
    }

    @Before
    public void setUp() {
    /* Get the class name*/
        String className = ((ParameterizedType) getClass().getGenericSuperclass()).getActualTypeArguments()[2].getTypeName();

        /* Create the instance */
        try {
            facadeManager = (C) Class.forName(className).newInstance();
        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
            Logger.getLogger(GenericJPAController.class.getName()).log(Level.SEVERE, null, ex);
        }
        createTestObject();
    }

    @After
    public void tearDown() {
    }

    /**
     * Test of testFindTEntities_0args method, of class
     * GenericJPAController<T, U, C extends IFacade<T,U>>.
     * @throws java.lang.ClassNotFoundException
     * @throws java.lang.NoSuchMethodException
     * @throws java.lang.InstantiationException
     * @throws java.lang.IllegalAccessException
     */
    @Test
    public void  testFindTEntities_0args() throws ClassNotFoundException, NoSuchMethodException, InstantiationException, IllegalAccessException {

        /* Example of instance usage. Even intellisense (NetBeans) works here!*/
        try {
            List<T> lista = (List<T>) facadeManager.findAllEntities();
            lista.stream().forEach((ct) -> {
                System.out.println("Find all: " + stringReport());
            });
        } catch (Throwable ex) {
            System.err.println("Failed to access object." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }


    /**
     *
     * @return
     */
    public abstract String stringReport();

    protected abstract T createTestObject();
    protected abstract T editTestObject();
    protected abstract U getTextObjectIndex();
}

Create a new constraint first and then drop the old one.
That way you ensure that:

• constraints are always in place
• existing rows do not violate new constraints
• no illegal INSERT/UPDATEs are attempted after you drop a constraint and before a new one is applied.

With Matlab 2014b python libraries can be called directly from matlab. A prefix py. is added to all packet names:

>> wrapped = py.textwrap.wrap("example")

wrapped = 

  Python list with no properties.

    ['example']

While going through Microsoft MVC framework, I got a thought about builder pattern. I came across the pattern in the ControllerBuilder class. This class is to return the controller factory class, which is then used to build concrete controller.

Advantage I see in using builder pattern is that, you can create a factory of your own and plug it into the framework.

@Tetha, there can be a restaurant (Framework) run by Italian guy, that serves Pizza. In order to prepare pizza Italian guy (Object Builder) uses Owen (Factory) with a pizza base (base class).

Now Indian guy takes over the restaurant from Italian guy. Indian restaurant (Framework) servers dosa instead of pizza. In order to prepare dosa Indian guy (object builder) uses Frying Pan (Factory) with a Maida (base class)

If you look at scenario, food is different,way food is prepared is different, but in the same restaurant (under same framework). Restaurant should be build in such a way that it can support Chinese, Mexican or any cuisine. Object builder inside framework facilitates to plugin kind of cuisine you want. for example

class RestaurantObjectBuilder
{
   IFactory _factory = new DefaultFoodFactory();

   //This can be used when you want to plugin the 
   public void SetFoodFactory(IFactory customFactory)
   {
        _factory = customFactory;
   }

   public IFactory GetFoodFactory()
   {
      return _factory;
   }
}

List<int> list = new List<int> { 5, 7, 3 };  
list.Sort((x,y)=> y.CompareTo(x));  
list.ForEach(action => { Console.Write(action + " "); });

Your project path contains Chinese characters,

em: F:\??\Yourproject

Please rename the path English characters:

em: F:\Data\Yourproject

You can try : Yolk

For install yolk, try:

easy_install yolk

Yolk is a Python tool for obtaining information about installed Python packages and querying packages avilable on PyPI (Python Package Index).

You can see which packages are active, non-active or in development mode and show you which have newer versions available by querying PyPI.

Applicable for Eclipse Luna + Eclipse Git 3.6.1

I,

1. cloned git repository
2. made some changes in source code
3. staged changes from Git Staging View
4. finally, commit and Push!

And I faced this issue with EGit and here is how I fixed it..

Yes, someone committed the changes before I commit my changes. So the changes are rejected. After this error, the changes gets actually committed to local repository. I did not want to just Pull the changes because I wanted to maintain linear history as pointed out in - In what cases could `git pull` be harmful?

So, I executed following steps

1. from Git Repository perspective, right click on the concerned Git
   project
2. select Fetch from Upstream - it fetches remote updates (refs and objects) but no updates are made locally. for more info refer What is the difference between 'git pull' and 'git fetch'?
3. select Rebase... - this open a popup, click on Preserve merges during rebase see why
   What exactly does git's "rebase --preserve-merges" do (and why?)
4. click on Rebase button
5. if there is/are a conflict(s), go to step 6 else step 11
6. a Rebase Result popup would appear, just click on OK
7. file comparator would open up, you need to modify left side file.
8. once you are done with merging changes correctly, goto Git Staging view
9. stage the changes. i.e. add to index
10. on the same view, click on Rebase-> Continue. repeat 7 to 10 until all conflicts are resolved.
11. from History view, select your commit row and select Push Commit
12. select Rebase Commits of local....... checkbox and click next. refer why - Git: rebase onto development branch from upstream
13. click on Finish

Note: if you have multiple local repository commits, you need to squash them in one commit to avoid multiple merges.

Give the div "runat="server" and an id and you can reference it in your code behind.

<div runat="server" id="theDiv">

In code behind:

{
    theDiv.Visible = false;
}

In Designer.cs page:

 protected global::System.Web.UI.HtmlControls.HtmlGenericControl theDiv;

If you are using the latest version of Bootstrap i.e 4.0.0 you just need to use the 'transparent' keyword as:

<nav class="navbar navbar-light transparent">

There is simply no need to apply any css for this as bootstrap has this property inbuilt.

Enums must be specified at compile time, you can't dynamically add enums during run-time - and why would you, there would be no use/reference to them in the code?

From Professional C# 2008:

The real power of enums in C# is that behind the scenes they are instantiated as structs derived from the base class, System.Enum . This means it is possible to call methods against them to perform some useful tasks. Note that because of the way the .NET Framework is implemented there is no performance loss associated with treating the enums syntactically as structs. In practice, once your code is compiled, enums will exist as primitive types, just like int and float .

So, I'm not sure you can use Enums the way you want to.

I used the following for a drawable image with a border.

First make a .xml file with this code in drawable folder:

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
    <shape android:shape="oval">
        <solid android:color="@color/orange"/>
    </shape>
</item>
<item
    android:top="2dp"
    android:bottom="2dp"
    android:left="2dp"
    android:right="2dp">
    <shape android:shape="oval">
        <solid android:color="@color/white"/>
    </shape>
</item>
<item
    android:drawable="@drawable/messages" //here messages is my image name, please give here your image name.
    android:bottom="15dp"
    android:left="15dp"
    android:right="15dp"
    android:top="15dp"/>

Second make a view .xml file in layout folder and call the above .xml file with this way

<ImageView
   android:id="@+id/imageView2"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:src="@drawable/merchant_circle" />  // here merchant_circle will be your first .xml file name

You can also use df.icol(n) to access a column by integer.

Update: icol is deprecated and the same functionality can be achieved by:

df.iloc[:, n]  # to access the column at the nth position

For posterity, this post mentions,

in the latest release of Visual Studio Code (May 2016) it is now possible to list the installed extension in the command line

code --list-extensions

On Mac, execute something like:

"/Applications/Visual Studio Code.app//Contents/Resources/app/bin/code" --list-extensions

To install, use:

--install-extension <ext> //see 'code --help'

Here's a gist I put together. I was wondering the same and this helped improve my understanding. Open this up in an Xcode Playground to see what's going on.

protocol YelpRequestDelegate {
    func getYelpData() -> AnyObject
    func processYelpData(data: NSData) -> NSData
}

class YelpAPI {
    var delegate: YelpRequestDelegate?

    func getData() {
        println("data being retrieved...")
        let data: AnyObject? = delegate?.getYelpData()
    }

    func processYelpData(data: NSData) {
        println("data being processed...")
        let data = delegate?.processYelpData(data)
    }
}

class Controller: YelpRequestDelegate {
    init() {
        var yelpAPI = YelpAPI()
        yelpAPI.delegate = self
        yelpAPI.getData()
    }
    func getYelpData() -> AnyObject {
        println("getYelpData called")
        return NSData()
    }
    func processYelpData(data: NSData) -> NSData {
        println("processYelpData called")
        return NSData()
    }
}

var controller = Controller()

Refer this:

@RequestMapping(value="download", method=RequestMethod.GET)
public void getDownload(HttpServletResponse response) {

// Get your file stream from wherever.
InputStream myStream = someClass.returnFile();

// Set the content type and attachment header.
response.addHeader("Content-disposition", "attachment;filename=myfilename.txt");
response.setContentType("txt/plain");

// Copy the stream to the response's output stream.
IOUtils.copy(myStream, response.getOutputStream());
response.flushBuffer();
}

Details at: https://twilblog.github.io/java/spring/rest/file/stream/2015/08/14/return-a-file-stream-from-spring-rest.html

text.Trim() is to be used

string txt = "                   i am a string                                    ";
txt = txt.Trim();

Tha is because getColumnDimensionByColumn receives the column index (an integer starting from 0), not a string.

The same goes for setCellValueByColumnAndRow

I use:

public synchronized int generateViewId() {
    Random rand = new Random();
    int id;
    while (findViewById(id = rand.nextInt(Integer.MAX_VALUE) + 1) != null);
    return id;
}

By using a random number I always have a huge chance of getting the unique id in first attempt.

Their names can be a bit confusing :). Here's a summary:

• The SelectedItem property returns the entire object that your list is bound to. So say you've bound a list to a collection of Category objects (with each Category object having Name and ID properties). eg. ObservableCollection<Category>. The SelectedItem property will return you the currently selected Category object. For binding purposes however, this is not always what you want, as this only enables you to bind an entire Category object to the property that the list is bound to, not the value of a single property on that Category object (such as its ID property).

• Therefore we have the SelectedValuePath property and the SelectedValue property as an alternative means of binding (you use them in conjunction with one another). Let's say you have a Product object, that your view is bound to (with properties for things like ProductName, Weight, etc). Let's also say you have a CategoryID property on that Product object, and you want the user to be able to select a category for the product from a list of categories. You need the ID property of the Category object to be assigned to the CategoryID property on the Product object. This is where the SelectedValuePath and the SelectedValue properties come in. You specify that the ID property on the Category object should be assigned to the property on the Product object that the list is bound to using SelectedValuePath='ID', and then bind the SelectedValue property to the property on the DataContext (ie. the Product).

The example below demonstrates this. We have a ComboBox bound to a list of Categories (via ItemsSource). We're binding the CategoryID property on the Product as the selected value (using the SelectedValue property). We're relating this to the Category's ID property via the SelectedValuePath property. And we're saying only display the Name property in the ComboBox, with the DisplayMemberPath property).

<ComboBox ItemsSource="{Binding Categories}" 
          SelectedValue="{Binding CategoryID, Mode=TwoWay}" 
          SelectedValuePath="ID" 
          DisplayMemberPath="Name" />

public class Category
{
    public int ID { get; set; }
    public string Name { get; set; }
}

public class Product
{
    public int CategoryID { get; set; }
}

It's a little confusing initially, but hopefully this makes it a bit clearer... :)

Chris

If you are already debugging, you can hover over the function and the tooltip will allow you to navigate directly to the function definition:

Further Reading:

• Chrome DevTools > JavaScript Debugging Reference

import numpy as np
a = np.array([[1,3,4],[1,2,3],[1,2,1]])
b = np.array([10,20,30])
c = np.hstack((a, np.atleast_2d(b).T))

returns c:

array([[ 1,  3,  4, 10],
       [ 1,  2,  3, 20],
       [ 1,  2,  1, 30]])

In my experience, the fastest method is

UPDATE table_name SET field = REPLACE(field, 'foo', 'bar') WHERE field LIKE '%foo%';

The INSTR() way is the second-fastest and omitting the WHERE clause altogether is slowest, even if the column is not indexed.

Check http://msdn.microsoft.com/en-us/library/system.iformatprovider.aspx for the API.

Elements are added to list using append():

>>> data = {'list': [{'a':'1'}]}
>>> data['list'].append({'b':'2'})
>>> data
{'list': [{'a': '1'}, {'b': '2'}]}

If you want to add element to a specific place in a list (i.e. to the beginning), use insert() instead:

>>> data['list'].insert(0, {'b':'2'})
>>> data
{'list': [{'b': '2'}, {'a': '1'}]}

After doing that, you can assemble JSON again from dictionary you modified:

>>> json.dumps(data)
'{"list": [{"b": "2"}, {"a": "1"}]}'

Here is what I'm doing very easily: I modified my base.html file for my template and put that at the bottom:

{% if DJdata %}
    <script type="text/javascript">
        (function () {window.DJdata = {{DJdata|safe}};})();
    </script>
{% endif %}

then when I want to use a variable in the javascript files, I create a DJdata dictionary and I add it to the context by a json : context['DJdata'] = json.dumps(DJdata)

Hope it helps!

This will also work

SELECT NAME 
FROM GEO_LOCATION
WHERE MODIFY_ON BETWEEN SYSDATE() - INTERVAL 2 HOUR AND SYSDATE()

Kotlin has an one-liner

context.cacheDir.deleteRecursively()

With PowerShell but without the need to create a script:

Invoke-WebRequest https://dist.nuget.org/win-x86-commandline/latest/nuget.exe -OutFile Nuget.exe

Escape should be done with \, not /.

So r.append('\n'); or r.append("\n"); will work (StringBuilder has overloaded methods for char and String type).

In modern browsers, the classList API is supported.

This allows for a (vanilla) JavaScript function like this:

var addClasses;

addClasses = function (selector, classArray) {
    'use strict';

    var className, element, elements, i, j, lengthI, lengthJ;

    elements = document.querySelectorAll(selector);

    // Loop through the elements
    for (i = 0, lengthI = elements.length; i < lengthI; i += 1) {
        element = elements[i];

        // Loop through the array of classes to add one class at a time
        for (j = 0, lengthJ = classArray.length; j < lengthJ; j += 1) {
            className = classArray[j];

            element.classList.add(className);
        }
    }
};

Modern browsers (not IE) support passing multiple arguments to the classList::add function, which would remove the need for the nested loop, simplifying the function a bit:

var addClasses;

addClasses = function (selector, classArray) {
    'use strict';

    var classList, className, element, elements, i, j, lengthI, lengthJ;

    elements = document.querySelectorAll(selector);

    // Loop through the elements
    for (i = 0, lengthI = elements.length; i < lengthI; i += 1) {
        element = elements[i];
        classList = element.classList;

        // Pass the array of classes as multiple arguments to classList::add
        classList.add.apply(classList, classArray);
    }
};

Usage

addClasses('.button', ['large', 'primary']);

Functional version

var addClassesToElement, addClassesToSelection;

addClassesToElement = function (element, classArray) {
    'use strict';

    classArray.forEach(function (className) {
       element.classList.add(className);
    });
};

addClassesToSelection = function (selector, classArray) {
    'use strict';

    // Use Array::forEach on NodeList to iterate over results.
    // Okay, since we’re not trying to modify the NodeList.
    Array.prototype.forEach.call(document.querySelectorAll(selector), function (element) {
        addClassesToElement(element, classArray)
    });
};

// Usage
addClassesToSelection('.button', ['button', 'button--primary', 'button--large'])

The classList::add function will prevent multiple instances of the same CSS class as opposed to some of the previous answers.

Resources on the classList API:

• Can I use
• MDN
• David Walsh
• HTML5 Doctor

Now you can use shelljs ( from node v4 ) as follows :

var shell = require('shelljs');

shell.echo('hello world');
shell.exec('node --version')

You can use the following with objects, unfortunately this does not work with strings though.

double? amount = (double?)someObject;

I use it for wrapping a session variable in a property (on a base page).. so my actual usage is (in my base page):

public int? OrganisationID
{
    get { return (int?)Session[Constants.Session_Key_OrganisationID]; }
    set { Session[Constants.Session_Key_OrganisationID] = value; }
}

I'm able to check for null in page logic:

if (base.OrganisationID == null)
    // do stuff

you can 'invoke' alternative bindings on Y this way:

...registered(X, Y), (Y=ct101; Y=ct102; Y=ct103).

Note the parenthesis are required to keep the correct execution control flow. The ;/2 it's the general or operator. For your restricted use you could as well choice the more idiomatic

...registered(X, Y), member(Y, [ct101,ct102,ct103]).

that on backtracking binds Y to each member of the list.

edit I understood with a delay your last requirement. If you want that Y match all 3 values the or is inappropriate, use instead

...registered(X, ct101), registered(X, ct102), registered(X, ct103).

or the more compact

...findall(Y, registered(X, Y), L), sort(L, [ct101,ct102,ct103]).

findall/3 build the list in the very same order that registered/2 succeeds. Then I use sort to ensure the matching.

...setof(Y, registered(X, Y), [ct101,ct102,ct103]).

setof/3 also sorts the result list

From the DevTools console, you can run:

document.getElementsByTagName("head")[0].innerHTML += '<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"><\/script>';

Check the available jQuery version at https://code.jquery.com/jquery/.

To check whether it's loaded, see: Checking if jquery is loaded using Javascript.

Add following class into your code

import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

/**
 * @author vaquar khan
 */
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {

        http.authorizeRequests().antMatchers("/**").permitAll().anyRequest().authenticated().and().csrf().disable();
    }

}

And insie of application.properties add

security.ignored=/**
security.basic.enabled=false
management.security.enabled=false

I would go like this (regex explained in comments):

import re

# If you need to use the regex more than once it is suggested to compile it.
pattern = re.compile(r"</{0,}\[\d+>")

# <\/{0,}\[\d+>
# 
# Match the character “<” literally «<»
# Match the character “/” literally «\/{0,}»
#    Between zero and unlimited times, as many times as possible, giving back as needed (greedy) «{0,}»
# Match the character “[” literally «\[»
# Match a single digit 0..9 «\d+»
#    Between one and unlimited times, as many times as possible, giving back as needed (greedy) «+»
# Match the character “>” literally «>»

subject = """this is a paragraph with<[1> in between</[1> and then there are cases ... where the<[99> number ranges from 1-100</[99>. 
and there are many other lines in the txt files
with<[3> such tags </[3>"""

result = pattern.sub("", subject)

print(result)

If you want to learn more about regex I recomend to read Regular Expressions Cookbook by Jan Goyvaerts and Steven Levithan.

Another thing to check is if any applications still have a hold on the file.

Had some issues with MoveFile. Part of my permissions problem was that my script opens the file (in this case in Excel), makes a modification, closes it, then moves it to a "processed" folder.

In debugging a couple things, the script crashed a few times. Digging into the permission denied error I found that I had 4 instances of Excel running in the background because the script was never able to properly terminate the application due to said crashes. Apparently one of them still had a hold on the file and, thusly, "permission denied."

Suposse you have

Class1

public class Class1 {
    //Your class code above
}

Class2

public class Class2 {
}

and then you can use Class2 in different ways.

Class Field

public class Class1{
    private Class2 class2 = new Class2();
}

Method field

public class Class1 {
    public void loginAs(String username, String password)
    {
         Class2 class2 = new Class2();
         class2.invokeSomeMethod();
         //your actual code
    }
}

Static methods from Class2 Imagine this is your class2.

public class Class2 {
     public static void doSomething(){
     }
}

from class1 you can use doSomething from Class2 whenever you want

public class Class1 {
    public void loginAs(String username, String password)
    {
         Class2.doSomething();
         //your actual code
    }
}

In PyCharm 2020.1 CE and Professional, you can add a path to your project's Python interpreter by doing the following:

1) Click the interpreter in the bottom right corner of the project and select 'Interpreter Settings'

2) Click the settings button to the right of the interpreter name and select 'Show All':

3) Make sure your project's interpreter is selected and click the fifth button in the bottom toolbar, 'show paths for the selected interpreter':

4) Click the '+' button in the bottom toolbar and add a path to the folder containing your module:

TL;DR

Java caches boxed Integer instances from -128 to 127. Since you are using == to compare objects references instead of values, only cached objects will match. Either work with long unboxed primitive values or use .equals() to compare your Long objects.

Long (pun intended) version

Why there is problem in comparing Long variable with value greater than 127? If the data type of above variable is primitive (long) then code work for all values.

Java caches Integer objects instances from the range -128 to 127. That said:

• If you set to N Long variables the value 127 (cached), the same object instance will be pointed by all references. (N variables, 1 instance)
• If you set to N Long variables the value 128 (not cached), you will have an object instance pointed by every reference. (N variables, N instances)

That's why this:

Long val1 = 127L;
Long val2 = 127L;

System.out.println(val1 == val2);

Long val3 = 128L;
Long val4 = 128L;

System.out.println(val3 == val4);

Outputs this:

true
false

For the 127L value, since both references (val1 and val2) point to the same object instance in memory (cached), it returns true.

On the other hand, for the 128 value, since there is no instance for it cached in memory, a new one is created for any new assignments for boxed values, resulting in two different instances (pointed by val3 and val4) and returning false on the comparison between them.

That happens solely because you are comparing two Long object references, not long primitive values, with the == operator. If it wasn't for this Cache mechanism, these comparisons would always fail, so the real problem here is comparing boxed values with == operator.

Changing these variables to primitive long types will prevent this from happening, but in case you need to keep your code using Long objects, you can safely make these comparisons with the following approaches:

System.out.println(val3.equals(val4));                     // true
System.out.println(val3.longValue() == val4.longValue());  // true
System.out.println((long)val3 == (long)val4);              // true

(Proper null checking is necessary, even for castings)

IMO, it's always a good idea to stick with .equals() methods when dealing with Object comparisons.

Reference links:

• https://today.java.net/pub/a/today/2005/03/24/autoboxing.html
• https://blogs.oracle.com/darcy/entry/boxing_and_caches_integer_valueof
• http://java.dzone.com/articles/surprising-results-autoboxing

I think this is what should we exactly do: http://www.html5rocks.com/en/tutorials/casestudies/gopherwoord-studios-resizing-html5-games/

function resizeGame() {
    var gameArea = document.getElementById('gameArea');
    var widthToHeight = 4 / 3;
    var newWidth = window.innerWidth;
    var newHeight = window.innerHeight;
    var newWidthToHeight = newWidth / newHeight;

    if (newWidthToHeight > widthToHeight) {
        newWidth = newHeight * widthToHeight;
        gameArea.style.height = newHeight + 'px';
        gameArea.style.width = newWidth + 'px';
    } else {
        newHeight = newWidth / widthToHeight;
        gameArea.style.width = newWidth + 'px';
        gameArea.style.height = newHeight + 'px';
    }

    gameArea.style.marginTop = (-newHeight / 2) + 'px';
    gameArea.style.marginLeft = (-newWidth / 2) + 'px';

    var gameCanvas = document.getElementById('gameCanvas');
    gameCanvas.width = newWidth;
    gameCanvas.height = newHeight;
}

window.addEventListener('resize', resizeGame, false);
window.addEventListener('orientationchange', resizeGame, false);

Application pools allow you to isolate your applications from one another, even if they are running on the same server. This way, if there is an error in one app, it won't take down other applications.

Additionally, applications pools allow you to separate different apps which require different levels of security.

Here's a good resource: IIS and ASP.NET: The Application Pool

comboBox1.Text = " ";

This is the best and easiest way to set your combo box back to default settings without erasing the contents of the combo box.

Lambda Expression Java 8

In Java 1.8 (Java 8) this has become lot easier by using forEach method from Aggregate operations(Stream operations) that looks similar to iterators from Iterable Interface.

Just copy paste below statement to your code and rename the HashMap variable from hm to your HashMap variable to print out key-value pair.

HashMap<Integer,Integer> hm = new HashMap<Integer, Integer>();
/*
 *     Logic to put the Key,Value pair in your HashMap hm
 */

// Print the key value pair in one line.
hm.forEach((k,v) -> System.out.println("key: "+k+" value:"+v));

Here is an example where a Lambda Expression is used:

    HashMap<Integer,Integer> hm = new HashMap<Integer, Integer>();
    Random rand = new Random(47);
    int i=0;
    while(i<5){
        i++;
        int key = rand.nextInt(20);
        int value = rand.nextInt(50);
        System.out.println("Inserting key: "+key+" Value: "+value);
        Integer imap =hm.put(key,value);
        if( imap == null){
            System.out.println("Inserted");
        }
        else{
            System.out.println("Replaced with "+imap);
        }               
    }

    hm.forEach((k,v) -> System.out.println("key: "+k+" value:"+v));

Output:

Inserting key: 18 Value: 5
Inserted
Inserting key: 13 Value: 11
Inserted
Inserting key: 1 Value: 29
Inserted
Inserting key: 8 Value: 0
Inserted
Inserting key: 2 Value: 7
Inserted
key: 1 value:29
key: 18 value:5
key: 2 value:7
key: 8 value:0
key: 13 value:11

Also one can use Spliterator for the same.

Spliterator sit = hm.entrySet().spliterator();

UPDATE

Including documentation links to Oracle Docs. For more on Lambda go to this link and must read Aggregate Operations and for Spliterator go to this link.

I managed to solve this in the Request handling code following advice from 'monsur'.

string origin = WebOperationContext.Current.IncomingRequest.Headers.Get("Origin");

WebOperationContext.Current.OutgoingResponse.Headers.Add("Access-Control-Allow-Origin", origin);

Peter Norvig's The Java IAQ: Infrequently Answered Questions

http://norvig.com/java-iaq.html#constructors - Anonymous class contructors

http://norvig.com/java-iaq.html#init - Construtors and initialization

Summing, you can construct something like this..

public class ResultsBuilder {
    Set<Result> errors;
    Set<Result> warnings;

...

    public Results<E> build() {
        return new Results<E>() {
            private Result[] errorsView;
            private Result[] warningsView;
            {
                errorsView = ResultsBuilder.this.getErrors();
                warningsView = ResultsBuilder.this.getWarnings();
            }

            public Result[] getErrors() {
                return errorsView;
            }

            public Result[] getWarnings() {
                return warningsView;
            }
        };
    }

    public Result[] getErrors() {
        return !isEmpty(this.errors) ? errors.toArray(new Result[0]) : null;
    }

    public Result[] getWarnings() {
        return !isEmpty(this.warnings) ? warnings.toArray(new Result[0]) : null;
    }
}

Use @Test annotation on one of the test methods or annotate your test class with @RunWith(JMockit.class) if using jmock. Intellij should identify that as test class & enable navigation. Also make sure junit plugin is enabled.

The TryParse method allows you to test whether something is parseable. If you try Parse as in the first instance with an invalid int, you'll get an exception while in the TryParse, it returns a boolean letting you know whether the parse succeeded or not.

As a footnote, passing in null to most TryParse methods will throw an exception.

Logic index:

d<-d[!(d$A=="B" & d$E==0),]

Check out Oj. There are gotchas when it comes to converting any old object to JSON, but Oj can do it.

require 'oj'

class A
    def initialize a=[1,2,3], b='hello'
        @a = a
        @b = b
    end
end

a = A.new
puts Oj::dump a, :indent => 2

This outputs:

{
  "^o":"A",
  "a":[
    1,
    2,
    3
  ],
 "b":"hello"
}

Note that ^o is used to designate the object's class, and is there to aid deserialization. To omit ^o, use :compat mode:

puts Oj::dump a, :indent => 2, :mode => :compat

Output:

{
  "a":[
    1,
    2,
    3
  ],
  "b":"hello"
}

The above methods are great, but sometimes you want to use a combination of functions for what your routine considers to be whitespace. In this case, using functors to combine operations can get messy so I prefer a simple loop I can modify for the trim. Here is a slightly modified trim function copied from the C version here on SO. In this example, I am trimming non alphanumeric characters.

string trim(char const *str)
{
  // Trim leading non-letters
  while(!isalnum(*str)) str++;

  // Trim trailing non-letters
  end = str + strlen(str) - 1;
  while(end > str && !isalnum(*end)) end--;

  return string(str, end+1);
}

Here is the flex-box approach:

CSS

 .parent {
  display:flex;
  height:100vh;
  }
  .child{
    flex-grow:1;
  }
  .left{
    background:#ddd;
  }
  .center{
    background:#666;
  }

  .right{
    background:#999;
  }

HTML

<div class="parent">
    <div class="child left">Left</div>
    <div class="child center">Center</div>
    <div class="child right">Right</div>
</div>

You can try the same in js fiddle.

window.location.hash = '#tries';

This will scroll to the element in question, essentially "focus"ing it.

This question is enormously old but is still the top result on google when you search for ways to try to disable this popup message as an extension developer who hasn't added their extension to the chrome store, doesn't have access to group policies due to their OS, and is not using the chrome dev build. There is currently no official solution in this circumstance so I'll post a somewhat 'hacky' one here.

This method has us immediately create a new window and close the old one. The popup window is associated with the original window so in normal use cases the popup never appears since that window gets closed.

The simplest solution here is we create a new window, and we close all windows that are not the window we just created in the callback:

chrome.windows.create({
    type: 'normal',
    focused: true,
    state: 'maximized'
}, function(window) {
    chrome.windows.getAll(function(windows) {
        for (var i = 0; i < windows.length; i++) {
            if (windows[i].id != window.id) {
                chrome.windows.remove(windows[i].id);
            }
        }
    });
});

Additionally we can detect how this extension is installed and only run this code if it is a development install (although probably best to completely remove altogether from release code). First we create the callback function for a chrome.management.getSelf call which allows us to check the extension's install type, which is basically just wrapping the code above in an if statement:

function suppress_dev_warning(info) {
    if (info.installType == "development") {
        chrome.windows.create({
            type: 'normal',
            focused: true,
            state: 'maximized'
        }, function(window) {
            chrome.windows.getAll(function(windows) {
                for (var i = 0; i < windows.length; i++) {
                    if (windows[i].id != window.id) {
                        chrome.windows.remove(windows[i].id);
                    }
                }
            });
        });
    }
}

next we call chrome.management.getSelf with the callback we made:

chrome.management.getSelf(suppress_dev_warning);

This method has some caveats, namely we are assuming a persistent background page which means the code runs only once when chrome is first opened. A second issue is that if we reload/refresh the extension from the chrome://extensions page, it will close all windows that are currently open and in my experience sometimes display the warning anyways. This special case can be avoided by checking if any tabs are open to "chrome://extensions" and not executing if they are.

Beware float: left…

…there are many ways to align elements side-by-side.

Below are the most common ways to achieve two elements side-by-side…

Demo: View/edit all the below examples on Codepen

Basic styles for all examples below…

Some basic css styles for parent and child elements in these examples:

.parent {
  background: mediumpurple;
  padding: 1rem;
}
.child {
  border: 1px solid indigo;
  padding: 1rem;
}

Using the float solution my have unintended affect on other elements. (Hint: You may need to use a clearfix.)

html

<div class='parent'>
  <div class='child float-left-child'>A</div>
  <div class='child float-left-child'>B</div>
</div>

css

.float-left-child {
  float: left;
}

html

<div class='parent'>
  <div class='child inline-block-child'>A</div>
  <div class='child inline-block-child'>B</div>
</div>

css

.inline-block-child {
  display: inline-block;
}

Note: the space between these two child elements can be removed, by removing the space between the div tags:

html

<div class='parent'>
  <div class='child inline-block-child'>A</div><div class='child inline-block-child'>B</div>
</div>

css

.inline-block-child {
  display: inline-block;
}

html

<div class='parent flex-parent'>
  <div class='child flex-child'>A</div>
  <div class='child flex-child'>B</div>
</div>

css

.flex-parent {
  display: flex;
}
.flex-child {
  flex: 1;
}

html

<div class='parent inline-flex-parent'>
  <div class='child'>A</div>
  <div class='child'>B</div>
</div>

css

.inline-flex-parent {
  display: inline-flex;
}

html

<div class='parent grid-parent'>
  <div class='child'>A</div>
  <div class='child'>B</div>
</div>

css

.grid-parent {
  display: grid;
  grid-template-columns: 1fr 1fr
}

gv starts visual mode and automatically selects what you previously had selected.

Static classes in languages like C# exist because there are no other top-level constructs to group data and functions. In JavaScript, however, they do and so it is much more natural to just declare an object like you did. To more closely mimick the class syntax, you can declare methods like so:

const myStaticClass = {
    property: 10,

    method() {

    }
}

Put simply, an lvalue is something that can appear on the left-hand side of an assignment, typically a variable or array element.

So if you define int *p, then p is an lvalue. p+1, which is a valid expression, is not an lvalue.

If you're trying to add 1 to p, the correct syntax is:

p = p + 1;

The answer of Mark Byers is the optimal in this situation. Though in more complex situations you can take the select query that returns rowids and calculated values and attach it to the update query like this:

with t as (
  -- Any generic query which returns rowid and corresponding calculated values
  select t1.id as rowid, f(t2, t2) as calculatedvalue
  from table1 as t1
  join table2 as t2 on t2.referenceid = t1.id
)
update table1
set value = t.calculatedvalue
from t
where id = t.rowid

This approach lets you develop and test your select query and in two steps convert it to the update query.

So in your case the result query will be:

with t as (
    select v.id as rowid, s.price_per_vehicle as calculatedvalue
    from vehicles_vehicle v 
    join shipments_shipment s on v.shipment_id = s.id 
)
update vehicles_vehicle
set price = t.calculatedvalue
from t
where id = t.rowid

Note that column aliases are mandatory otherwise PostgreSQL will complain about the ambiguity of the column names.

Using .enumerate() works, but it does not provide the true index of the element; it only provides an Int beginning with 0 and incrementing by 1 for each successive element. This is usually irrelevant, but there is the potential for unexpected behavior when used with the ArraySlice type. Take the following code:

let a = ["a", "b", "c", "d", "e"]
a.indices //=> 0..<5

let aSlice = a[1..<4] //=> ArraySlice with ["b", "c", "d"]
aSlice.indices //=> 1..<4

var test = [Int: String]()
for (index, element) in aSlice.enumerate() {
    test[index] = element
}
test //=> [0: "b", 1: "c", 2: "d"] // indices presented as 0..<3, but they are actually 1..<4
test[0] == aSlice[0] // ERROR: out of bounds

It's a somewhat contrived example, and it's not a common issue in practice but still I think it's worth knowing this can happen.

I always prefer pure SQL so :

SELECT 'ALTER TABLE [' + l.schema_n + '].[' 
       + l.table_name + '] ALTER COLUMN [' 
       + l.column_name + '] ' + l.data_type + '(' 
       + Cast(l.new_max_length AS NVARCHAR(100)) 
       + ') COLLATE ' + l.dest_collation_name + ';', 
       l.schema_n, 
       l.table_name, 
       l.column_name, 
       l.data_type, 
       l.max_length, 
       l.collation_name 
FROM   (SELECT Row_number() 
                 OVER ( 
                   ORDER BY c.column_id) AS row_id, 
               Schema_name(o.schema_id)  schema_n, 
               ta.NAME                   table_name, 
               c.NAME                    column_name, 
               t.NAME                    data_type, 
               c.max_length, 
               CASE 
                 WHEN c.max_length = -1 
                       OR ( c.max_length > 4000 ) THEN 4000 
                 ELSE c.max_length 
               END                       new_max_length, 
               c.column_id, 
               c.collation_name, 
               'French_CI_AS'            dest_collation_name 
        FROM   sys.columns c 
               INNER JOIN sys.tables ta 
                       ON c.object_id = ta.object_id 
               INNER JOIN sys.objects o 
                       ON c.object_id = o.object_id 
               JOIN sys.types t 
                 ON c.system_type_id = t.system_type_id 
               LEFT OUTER JOIN sys.index_columns ic 
                            ON ic.object_id = c.object_id 
                               AND ic.column_id = c.column_id 
               LEFT OUTER JOIN sys.indexes i 
                            ON ic.object_id = i.object_id 
                               AND ic.index_id = i.index_id 
        WHERE  1 = 1 
               AND c.collation_name = 'SQL_Latin1_General_CP1_CI_AS' 
       --'French_CI_AS'-- ALTER DONE YET OLD VALUE :'SQL_Latin1_General_CP1_CI_AS' 
       ) l 
ORDER  BY l.column_id;

Go to tools >> nuget >> console and type:

Install-Package System.Configuration.ConfigurationManager 

If you want a specific version:

Install-Package System.Configuration.ConfigurationManager -Version 4.5.0

Your ConfigurationManager dll will now be imported and the code will begin to work.

I'm going to be brave and throw my hat into the ring on this one (ancient as it is), see how many downvotes I can collect.

Here is my attempt, which does seem to work everywhere I have tested it (Chrome20, IE8 and FF14):

(function() {
    if (top == self) {
        return;
    }

    setInterval(function() {
        top.location.replace(document.location);
        setTimeout(function() {
            var xhr = new XMLHttpRequest();
            xhr.open(
                'get',
                'http://mysite.tld/page-that-takes-a-while-to-load',
                false
            );
            xhr.send(null);
        }, 0);
    }, 1);
}());

I placed this code in the <head> and called it from the end of the <body> to ensure my page is rendered before it starts arguing with the malicious code, don't know if this is the best approach, YMMV.

How does it work?

...I hear you ask - well the honest answer is, I don't really know. It took a lot of fudging about to make it work everywhere I was testing, and the exact effect that it has varies slightly depending on where you run it.

Here is the thinking behind it:

• Set a function to run at the lowest possible interval. The basic concept behind any of the realistic solutions I have seen is to fill up the scheduler with more events than the frame buster-buster has.
• Every time the function fires, try and change the location of the top frame. Fairly obvious requirement.
• Also schedule a function to run immediately which will take a long time to complete (thereby blocking the frame buster-buster from interfering with the location change). I chose a synchronous XMLHttpRequest because it's the only mechanism I can think of that doesn't require (or at least ask for) user interaction and doesn't chew up the user's CPU time.

For my http://mysite.tld/page-that-takes-a-while-to-load (the target of the XHR) I used a PHP script that looks like this:

<?php sleep(5);

What happens?

• Chrome and Firefox wait the 5 seconds while the XHR completes, then successfully redirect to the framed page's URL.
• IE redirects pretty much immediately

Can't you avoid the wait time in Chrome and Firefox?

Apparently not. At first I pointed the XHR to a URL that would return a 404 - this didn't work in Firefox. Then I tried the sleep(5); approach that I eventually landed on for this answer, then I started playing around with the sleep length in various ways. I could find no real pattern to the behaviour, but I did find that if it is too short, specifically Firefox will not play ball (Chrome and IE seem to be fairly well behaved). I don't know what the definition of "too short" is in real terms, but 5 seconds seems to work every time.

If any passing Javascript ninjas want to explain a little better what's going on, why this is (probably) wrong, unreliable, the worst code they've ever seen etc I'll happily listen.

This answer is here: Python: how to suppress logging statements from third party libraries?

You can leave the default logging level for basicConfig, and then you set the DEBUG level when you get the logger for your module.

logging.basicConfig(format='%(asctime)s %(module)s %(filename)s:%(lineno)s - %(message)s')
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)

logger.debug("my debug message")

this will subtract ten days of the current date (before Java 8):

int x = -10;
Calendar cal = GregorianCalendar.getInstance();
cal.add( Calendar.DAY_OF_YEAR, x);
Date tenDaysAgo = cal.getTime();

If you're using Java 8 you can make use of the new Date & Time API (http://www.oracle.com/technetwork/articles/java/jf14-date-time-2125367.html):

LocalDate tenDaysAgo = LocalDate.now().minusDays(10);

For converting the new to the old types and vice versa see: Converting between java.time.LocalDateTime and java.util.Date

(I found this answer from a video: http://www.youtube.com/watch?v=xmvRF7koJ5E)

1. Download msvcp71.dll and msvcr71.dll from the web.

2. Save them to your C:\Windows\System32 folder.

3. Save them to your C:\Windows\SysWOW64 folder as well (if you have a 64-bit operating system).

Now try running your code file in Python and it will load the graph in couple of seconds.

Interpreted string literals are character sequences between double quotes "" using the (possibly multi-byte) UTF-8 encoding of individual characters. In UTF-8, ASCII characters are single-byte corresponding to the first 128 Unicode characters. Strings behave like slices of bytes. A rune is an integer value identifying a Unicode code point. Therefore,

package main

import "fmt"

func main() {
    fmt.Println(string("Hello"[1]))              // ASCII only
    fmt.Println(string([]rune("Hello, ??")[1])) // UTF-8
    fmt.Println(string([]rune("Hello, ??")[8])) // UTF-8
}

Output:

e
e
?

Read:

Go Programming Language Specification section on Conversions.

The Go Blog: Strings, bytes, runes and characters in Go

WhiteStarUML is a fork of StarUML that is still maintain http://sourceforge.net/projects/whitestaruml/?source=dlp.

Here's an example of how you might concatenate email addresses from a table into a single @recipients parameter:

CREATE TABLE #emailAddresses (email VARCHAR(25))

INSERT #emailAddresses (email) VALUES ('[email protected]')
INSERT #emailAddresses (email) VALUES ('[email protected]')
INSERT #emailAddresses (email) VALUES ('[email protected]')

DECLARE @recipients VARCHAR(MAX)
SELECT @recipients = COALESCE(@recipients + ';', '') + email 
FROM #emailAddresses

SELECT @recipients

DROP TABLE #emailAddresses

The resulting @recipients will be:

[email protected];[email protected];[email protected]

You can use a jQuery plugin that will do the job for you :

• https://github.com/avianey/jqDoubleScroll

The plugin will handle all the logic for you.

For this (and most plotting) I would not rely on the Pandas wrappers to matplotlib. Instead, just use matplotlib directly:

import matplotlib.pyplot as plt
plt.scatter(df['col_name_1'], df['col_name_2'])
plt.show() # Depending on whether you use IPython or interactive mode, etc.

and remember that you can access a NumPy array of the column's values with df.col_name_1.values for example.

I ran into trouble using this with Pandas default plotting in the case of a column of Timestamp values with millisecond precision. In trying to convert the objects to datetime64 type, I also discovered a nasty issue: < Pandas gives incorrect result when asking if Timestamp column values have attr astype >.

If you want to get all new things in the past 5 minutes you would have to do some calculations, but its not hard...

First create an index on the property you want to match on (include sort direction -1 for descending and 1 for ascending)

db.things.createIndex({ createdAt: -1 }) // descending order on .createdAt

Then query for documents created in the last 5 minutes (60 seconds * 5 minutes)....because javascript's .getTime() returns milliseconds you need to mulitply by 1000 before you use it as input to the new Date() constructor.

db.things.find({
        createdAt: {
            $gte: new Date(new Date().getTime()-60*5*1000).toISOString()
         }
     })
     .count()

Explanation for new Date(new Date().getTime()-60*5*1000).toISOString() is as follows:

First we calculate "5 minutes ago":

1. new Date().getTime() gives us current time in milliseconds
2. We want to subtract 5 minutes (in ms) from that: 5*60*1000 -- I just multiply by 60 seconds so its easy to change. I can just change 5 to 120 if I want 2 hours (120 minutes).
3. new Date().getTime()-60*5*1000 gives us 1484383878676 (5 minutes ago in ms)

Now we need to feed that into a new Date() constructor to get the ISO string format required by MongoDB timestamps.

1. { $gte: new Date(resultFromAbove).toISOString() } (mongodb .find() query)
2. Since we can't have variables we do it all in one shot: new Date(new Date().getTime()-60*5*1000)
3. ...then convert to ISO string: .toISOString()
4. new Date(new Date().getTime()-60*5*1000).toISOString() gives us 2017-01-14T08:53:17.586Z

Of course this is a little easier with variables if you're using the node-mongodb-native driver, but this works in the mongo shell which is what I usually use to check things.

b = a[a>threshold] this should do

I tested as follows:

import numpy as np, datetime
# array of zeros and ones interleaved
lrg = np.arange(2).reshape((2,-1)).repeat(1000000,-1).flatten()

t0 = datetime.datetime.now()
flt = lrg[lrg==0]
print datetime.datetime.now() - t0

t0 = datetime.datetime.now()
flt = np.array(filter(lambda x:x==0, lrg))
print datetime.datetime.now() - t0

I got

$ python test.py
0:00:00.028000
0:00:02.461000

http://docs.scipy.org/doc/numpy/user/basics.indexing.html#boolean-or-mask-index-arrays

Use Dialog for simple yes or no dialogs.

When you need more complex views in which you need get hold of the lifecycle such as oncreate, request permissions, any life cycle override I would use a dialog fragment. Thus you separate the permissions and any other code the dialog needs to operate without having to communicate with the calling activity.

As also noted in the docs here.
Go to Python X.X/Lib and add these lines to the site.py there,

import sys
sys.path.append("yourpathstring")

This changes your sys.path so that on every load, it will have that value in it..

As stated here about site.py,

This module is automatically imported during initialization. Importing this module will append site-specific paths to the module search path and add a few builtins.

For other possible methods of adding some path to sys.path see these docs

this:

element.setAttribute("onclick", alert("blabla"));

should be:

element.onclick = function () {
  alert("blabla");
}

Because you call alert instead push alert as string in attribute

Based on Jeff Hillman's answer:

Here's a function you can just add to your profile.ps1 or define in current PowerShell session:

# Uninstall a Windows program
function uninstall($programName)
{
    $app = Get-WmiObject -Class Win32_Product -Filter ("Name = '" + $programName + "'")
    if($app -ne $null)
    {
        $app.Uninstall()
    }
    else {
        echo ("Could not find program '" + $programName + "'")
    }
}

Let's say you wanted to uninstall Notepad++. Just type this into PowerShell:

> uninstall("notepad++")

Just be aware that Get-WmiObject can take some time, so be patient!

The easiest way of doing this will be to use wifi of course. You will need to determine if your wifi base acts as a hub or a switch. If it acts as a hub then just connect your windows pc to it and wireshark should be able to see all the traffic from the iPhone. If it is a switch then your easiest bet will be to buy a cheap hub and connect the wan side of your wifi base to the hub and then connect your windows pc running wireshark to the hub as well. At that point wireshark will be able to see all the traffic as it passes over the hub.

Installing modules usually requires you to run an sql script that is included with the database installation.

Assuming linux-like OS

find / -name dblink.sql

Verify the location and run it