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Check if object value exists within a Javascript array of objects and if not add a new object to arr
...nst arr = [{ id: 1, username: 'fred' }, { id: 2, username: 'bill' }, { id: 3, username: 'ted' }];
function add(arr, name) {
const { length } = arr;
const id = length + 1;
const found = arr.some(el => el.username === name);
if (!found) arr.push({ id, username: name });
return arr...
Build android release apk on Phonegap 3.x CLI
How can I build an android app locally using the Phonegap 3.x CLI, ready to release? I check the bin folder generated inside the platforms/android directory of the project, and only has .debug APKs.
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Python - When to use file vs open
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153
You should always use open().
As the documentation states:
When opening a file, it's prefer...
How to delete object from array inside foreach loop?
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234
foreach($array as $elementKey => $element) {
foreach($element as $valueKey => $value)...
Supabase扩展能实现实时推送吗？源码级Realtime能力分析 - App应用开发 - ...
... App Inventor 2 后台推送通知方案时，我们深入分析了 fun123 自研的 Supabase 扩展。Supabase 官方确实提供了 Realtime 实时推送功能，那么当前扩展是否已经封装了这些能力？能否直接用来做推送？
以下是源码级分析结论。
一、S...
Understanding “randomness”
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edited May 23 '17 at 12:10
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answered Oct 18 '10 at 4:03
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How can I shift-select multiple checkboxes like GMail?
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13 Answers
13
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Writing Unicode text to a text file?
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323
Deal exclusively with unicode objects as much as possible by decoding things to unicode object...
How to “pretty” format JSON output in Ruby on Rails
...ns of JSON. For example:
require 'json'
my_object = { :array => [1, 2, 3, { :sample => "hash"} ], :foo => "bar" }
puts JSON.pretty_generate(my_object)
Which gets you:
{
"array": [
1,
2,
3,
{
"sample": "hash"
}
],
"foo": "bar"
}
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How to update SQLAlchemy row entry?
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137
user.no_of_logins += 1
session.commit()
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