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What are “res” and “req” parameters in Express functions?
...esponse to req, you use res to send back the desired HTTP response.
Those parameters can be named anything. You could change that code to this if it's more clear:
app.get('/user/:id', function(request, response){
response.send('user ' + request.params.id);
});
Edit:
Say you have this method:...
mongodb: insert if not exists
... to do an "upsert". MongoDB has built-in support for this. Pass an extra parameter to your update() call: {upsert:true}. For example:
key = {'key':'value'}
data = {'key2':'value2', 'key3':'value3'};
coll.update(key, data, upsert=True); #In python upsert must be passed as a keyword argument
Th...
Rendering JSON in controller
...ntroller < ApplicationController
def show
@user = User.find(params[:id])
render json: @user
end
end
Now, if we do an AJAX call using jQuery like this:
$.ajax({
type: "GET",
url: "/users/5",
dataType: "json",
success: function(data){
alert(data.na...
JavaScript curry: what are the practical applications?
...a necessary part. For example, in Haskell you simply cannot take multiple parameters to a function - you cannot do that in pure functional programming. You take one param at a time and build up your function. In JavaScript it's simply unnecessary, despite contrived examples like "converter". Her...
Do I need all three constructors for an Android custom view?
... @OvidiuLatcu can you please show an example of the third CTOR (with the 3 parameters) ?
– android developer
Sep 14 '13 at 20:10
...
How do I load an HTML page in a using JavaScript?
...xt and then feeds it to the innerHTML of your container element.
/**
* @param {String} url - address for the HTML to fetch
* @return {String} the resulting HTML string fragment
*/
async function fetchHtmlAsText(url) {
return await (await fetch(url)).text();
}
// this is your `load_home()...
How can I change the color of a part of a TextView?
...lor.BLACK),
* TextView.BufferType.SPANNABLE
* );
* </pre>
* @param text Text that contains a substring to colorize
* @param word The substring to colorize
* @param argb The color
* @return the Spannable for TextView's consumption
*/
public static Spannable colorized(final String te...
Hiding axis text in matplotlib plots
...xis().set_visible(False). I think matplotlib in this case initializes some parameters as if the plot is 2D. ax.set_zticks([]) will do what you want
– kon psych
Feb 9 '15 at 20:24
...
How to prevent ReflectionTypeLoadException when calling Assembly.GetTypes()
....Equals(item.Namespace))</para>
/// </summary>
/// <param name="assembly">The assembly to search</param>
/// <param name="predicate">The predicate query to match against</param>
/// <returns>The collection of types within the assembly that ma...
Bypass popup blocker on window.open when JQuery event.preventDefault() is set
...;
...and so you can make your $.getJSON call synchronous by mapping your params to the above and adding async: false:
$.ajax({
url: "redirect/" + pageId,
async: false,
dataType: "json",
data: {},
success: function(status) {
if (status == null) {
...