stringify

问题 TL;DR: I need to inject some JavaScript into a BrowserView in Electron using executeJavaScript. This code needs to be class. How can I stringify the class? I found out that you can stringify functions using + . const fn = function() { console.log('Hello'); }; const functionToText = '' + fn; console.log(functionToText); // function() { // console.log('Hello'); // } */ But my problem is, how can you stringify classes? I need the string version of the following object created from the class with

问题 If possible, I would like to be able to use shorthand notation to get an item from localStorage and then use JSON.parse() on it. In my code below, if I use the following it works: var retrievedObject = JSON.parse(localStorage.getItem('testObject')); //works However, if I use one of the two following shorthand options, it doesn't work: var retrievedObject = JSON.parse(localStorage.testObject); //doesn't work var retrievedObject = JSON.parse(localStorage['testObject']); //doesn't work All of my

问题 Having a really tough time getting Devise and Declarative to play nicely in RSpec testing. https://github.com/stffn/declarative_authorization/issues/95 stringify_keys error after supplementing session variables in functional tests These both address my problem, but neither had a solution that worked for me. # practices_controller_spec.rb it "assigns a new practice as @practice as owner" do get_action(:new, @owner) assigns(:practice).should be_a_new(Practice) sign_out @owner end def get_action

问题 Try to give an alternative in this question WITHOUT LOOPING! Just using indexOf and some integer math Get coordinates of an element in multidimentional array in Javascript The code below seemed promising but fails. Anyone with better math skills feel like fixing it? var letterVariations = [ [' ','0','1','2','3','4','5','6','7','8','9'], ['A','a','B','b','C','c','D','d','E','e',';'], ['Â','â','F','f','G','g','H','h','Ê','ê',':'], ['À','à','I','i','J','j','K','k','È','è','.'], ['L','l','Î','î',

问题 This question already exists : BackboneJS Make ID Integer Closed 5 years ago . I'm using JSON.stringify and JSON.parse to edit my JSON file based on changes to an online database. Everything works right, except it is making quotes around a number which is screwing up the JSON file. For example it should be "id": 1 but it is printing out "id": "1" . How would I edit the quotes out? I prefer to use JSON.stringify and not an alternative. 回答1: if you are getting the number from input field, the

问题 How should I encode this data as JSON in javascript? I use javascript to get an arbitrary number of 'tags' on photos. Each tag has a firstname and a lastname in this form: firstname = 'john'; lastname = 'doe'; firstname = 'jane'; lastname = 'smith'; I want to encode this data as JSON, send it to my server with Ajax, and decode it in PHP. My thought was to create a multidimensional array. Is there a better way to do this? The output of JSON.stringify() is [{\"firstname\":\"John\",\"lastname\":

问题 I'm thinking maybe I missed something in JavaScript that I'm just picking up now. I tried this code in Chrome console: a = []; a.name = "test"; JSON.stringify(a); // which returns value [] a = new Object(); a.name = "test"; JSON.stringify(a); // which returns value {"name":"test"} What is the difference? I thought new Object() was a Microsoft JScript thing? What am I missing? Must have missed something in a spec somewhere. Thanks. 回答1: a = new Object() and a = [] are not equivalent. But, a =

问题 In JavaScript, you can have objects, like this: var a = { foo: 12, bar: 34 }; Or arrays with key (named) indexes, like this: var b = []; b['foo'] = 56; b['bar'] = 78; They're somewhat similar, but obviously not the same. Now the strange thing is, JSON.stringify doesn't seem to take the array. No errors or anything, JSON.stringify(b) just results in []. See this jsfiddle example. Am I doing something wrong, or do I just misunderstand how arrays work? 回答1: Javascript doesn't support Associative

问题 I am using JSON.stringify() on html <input> s to send through a websocket like so: JSON.stringify({ numberValue: $('#numberValue').val() }) but it encodes $('#numberValue').val() as a String . How can it be encoded as a Number ? 回答1: Convert it to an integer first. JSON.stringify({ numberValue: parseInt($('#numberValue').val(), 10); }) 回答2: You can parse the string: JSON.stringify({ numberValue: parseInt($('#numberValue').val(), 10); }) The parseInt() function parses a string and returns an

问题 I am trying to implement a jquery ajax method that post a whole form. Now I got the jquery successfully execute the server side code, but the server side variable NameValue[] formVars is empty !! I can't figure out why. Could anyone help with this issue. thanks But my jquery ajax call always return blank error. Here is my javascript code <script type="text/javascript"> $(document).ready(function () { var MaxInputs = 8; //maximum input boxes allowed var InputsWrapper = $("#InputsWrapper"); /