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Returning JSON from PHP to JavaScript?
... in your PHP:
header('Content-type: application/json');
echo json_encode($array);
json_encode() can return a JavaScript array instead of JavaScript object, see:
Returning JSON from a PHP Script
This could be important to know in some cases as arrays and objects are not the same.
...
Why should eval be avoided in Bash, and what should I use instead?
...ay to sanitize individual elements, and another way to sanitize the entire array as a single string:
function println
{
# Send each element as a separate argument, starting with the second element.
# Arguments to printf:
# 1 -> "$1\n"
# 2 -> "$2"
# 3 -> "$3"
#...
When should I use a struct rather than a class in C#?
...fill: 889ms
Capacity: number of elements available before the internal array must be resized.
MemSize: determined by serializing the dictionary into a MemoryStream and getting a byte length (accurate enough for our purposes).
Completed Resize: the time it takes to resize the internal arr...
Can't access object property, even though it shows up in a console log
...ify, is the behaviour of the > button different depending on whether an array is being expanded, or an object?
– Flimm
Oct 4 '18 at 14:41
...
How can I get the current stack trace in Java?
...
You can use Thread.currentThread().getStackTrace().
That returns an array of StackTraceElements that represent the current stack trace of a program.
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Replace a value if null or undefined in JavaScript
...ue but the first value that can be converted to true.
Additionally use an array of objects instead of one single object:
var options = {
filters: [
{
name: 'firstName',
value: 'abc'
}
]
};
var filter = options.filters[0] || ''; // is {name:'firstNa...
How to compare versions in Ruby?
...
class Version < Array
def initialize s
super(s.split('.').map { |e| e.to_i })
end
def < x
(self <=> x) < 0
end
def > x
(self <=> x) > 0
end
def == x
(self <=> x) == 0
end
end
p [V...
For..In loops in JavaScript - key value pairs
...int out this output:
a 1
b 2
c 3
The Object.entries() method returns an array of a given object's own enumerable property [key, value] pairs, in the same order as that provided by a for...in loop (the difference being that a for-in loop enumerates properties in the prototype chain as well).
Obj...
How to avoid long nesting of asynchronous functions in Node.js
...
You could use this trick with an array rather than nested functions or a module.
Far easier on the eyes.
var fs = require("fs");
var chain = [
function() {
console.log("step1");
fs.stat("f1.js",chain.shift());
},
function(err, ...
throw Error('msg') vs throw new Error('msg')
...
Error does act like a factory, like some other native constructors: Array, Object, etc. all check something like if (!(this instanceof Array)) { return new Array(arguments); }. (But note that String(x) and new String(x) are very different, and likewise for Number and Boolean.)
That said, in ...