compare

问题 I have two seemingly equal double values in PHP (at least when echoing them). But when comparing them with double equals, for some reason, it evaluates to false. Are there any special considerations when performing this kind of comparison? 回答1: You shouldn't compare floating point numbers using the == operator. See the big warning and explanation in the php manual What will work is asserting that the two numbers are within a certain small distance of each other like this: if(abs($a - $b) < 0

问题 I try to compare two days ignoring time. So I use calendar.compare(date1, to: date2, toGranularity: .day) BUT when transfering the string date to Date type, it is transformed to UTC. So it will be "moved" from 1.1.2016 0:05 to 31.12.2015 11:05 pm. When comparing daywise, this includes only the remaining hour. Before conversion it was 24 hours. Any idea to handle this issue without much effort? Additionally: The code: var dateFormatter = DateFormatter() dateFormatter.dateFormat = "dd-MM-yyyy

问题 I try to compare two days ignoring time. So I use calendar.compare(date1, to: date2, toGranularity: .day) BUT when transfering the string date to Date type, it is transformed to UTC. So it will be "moved" from 1.1.2016 0:05 to 31.12.2015 11:05 pm. When comparing daywise, this includes only the remaining hour. Before conversion it was 24 hours. Any idea to handle this issue without much effort? Additionally: The code: var dateFormatter = DateFormatter() dateFormatter.dateFormat = "dd-MM-yyyy

问题 I try to compare two days ignoring time. So I use calendar.compare(date1, to: date2, toGranularity: .day) BUT when transfering the string date to Date type, it is transformed to UTC. So it will be "moved" from 1.1.2016 0:05 to 31.12.2015 11:05 pm. When comparing daywise, this includes only the remaining hour. Before conversion it was 24 hours. Any idea to handle this issue without much effort? Additionally: The code: var dateFormatter = DateFormatter() dateFormatter.dateFormat = "dd-MM-yyyy

问题 I try to compare two days ignoring time. So I use calendar.compare(date1, to: date2, toGranularity: .day) BUT when transfering the string date to Date type, it is transformed to UTC. So it will be "moved" from 1.1.2016 0:05 to 31.12.2015 11:05 pm. When comparing daywise, this includes only the remaining hour. Before conversion it was 24 hours. Any idea to handle this issue without much effort? Additionally: The code: var dateFormatter = DateFormatter() dateFormatter.dateFormat = "dd-MM-yyyy

问题 I have a DataFrame in pandas with information about people location in time. It is about 300+ million rows. Sample: import pandas as pd inp = [{'Name': 'John', 'Year':2018, 'Address':'Beverly hills'}, {'Name': 'John', 'Year':2018, 'Address':'Beverly hills'}, {'Name': 'John', 'Year':2019, 'Address':'Beverly hills'}, {'Name': 'John', 'Year':2019, 'Address':'Orange county'}, {'Name': 'John', 'Year':2019, 'Address':'New York'}, {'Name': 'Steve', 'Year':2018, 'Address':'Canada'}, {'Name': 'Steve',

问题 I am working on a project and for a part of it I need to compare 2 strings. My issue comes that whenever I try to compare them I always get false (==, .Equals(), String.Equals() - they all return false, even though I have 2 completely identical strings) Here is a part of my code. var tagType = JObject.Parse(json).First.First.ToString(); foreach (var type in assembly.ExportedTypes) { var name = tagType; var currentType = type.Name; var a = name.Length; var b = currentType.Length; var result =

问题 If I have the following ordered list: <ol class="breadcrumbs"> <li title="Sbox"> <a href="myURL">SANDBOX</a> </li> <li title="API Ref"> <a href="myURL">API Reference</a> </li> <li title="Schemas"> <a href="myURL">Schema Files</a> </li> </ol> I am able to 'harvest' the second child list item's text ('API Reference') by using this jQuery code: var bcrumbtext = $("ol.breadcrumbs li:nth-child(2)").text(); If I then have multiple Unordered lists (6 to be exact) with the following structure: <ul

问题 If I have the following ordered list: <ol class="breadcrumbs"> <li title="Sbox"> <a href="myURL">SANDBOX</a> </li> <li title="API Ref"> <a href="myURL">API Reference</a> </li> <li title="Schemas"> <a href="myURL">Schema Files</a> </li> </ol> I am able to 'harvest' the second child list item's text ('API Reference') by using this jQuery code: var bcrumbtext = $("ol.breadcrumbs li:nth-child(2)").text(); If I then have multiple Unordered lists (6 to be exact) with the following structure: <ul

问题 Joueur-Firebase import { Component, OnInit, Output ,HostBinding, OnDestroy} from '@angular/core'; import { Router } from '@angular/router'; import { Joueur } from '../models/joueur.model'; import { Match } from '../models/match.model'; import { JoueurService } from '../services/joueur.service'; import { Subscription } from 'rxjs'; import * as firebase from 'Firebase'; @Component({ selector: 'app-classement', templateUrl: './classement.component.html', styleUrls: ['./classement.component.scss'