javascript - Eloquent JS Exercise (Ch.18 Q. 2) -


i hoping can me figure out i'm doing wrong... there's exercise in eloquent js book asks write code can suggest words/values users type... code i've written below. happens when run code, div element's text content changes wrong value. specifically, it's set string of elements inside array 'terms'. cant figure out why happens!

    <input type="text" id="field"> <div id="suggestions" style="cursor: pointer"></div>  <script>   // builds array global variable names,   // 'alert', 'document', , 'scrollto'   var terms = [];   (var name in window)     terms.push(name);   var input = document.queryselector('input');   var div = document.queryselector('#suggestions');  input.addeventlistener("input", function(event){   var last = input.value.lastindexof(" ")+1;   var check = input.value.slice(last);   var reg = new regexp(check);   (var i=0; i<terms.length; i++) {     if (reg.test(terms[i])) {       var text = document.createtextnode(terms[i]);       div.appendchild(text)};   }; })  </script>

i guess forgot clean div before each change in input. added space after each word make output more readable.

// builds array global variable names,  // 'alert', 'document', , 'scrollto'  var terms = [];  (var name in window)      terms.push(name);  var input = document.queryselector('input');  var div = document.queryselector('#suggestions');    input.addeventlistener("input", function(event){    div.innerhtml = '';    var last = input.value.lastindexof(" ")+1;    var check = input.value.slice(last);    var reg = new regexp(check);    (var i=0; i<terms.length; i++) {      if (reg.test(terms[i])) {        var text = document.createtextnode(terms[i] + ' ');        div.appendchild(text)};    };  })
<input type="text" id="field">  <div id="suggestions" style="cursor: pointer"></div>

with code, display name of properties window object contains last word input. try writting "window location document". looking for?


Comments

Post a Comment

Popular posts from this blog

searchKeyword not working in AngularJS filter -

i writing app using angularjs on front end. want search through table word/field; 1 search box everything. according article here: http://hello-angularjs.appspot.com/searchtable can use filter: searchkeyword this. this code, , not working expected. <label>search: <input ng-model="searchkeyword"></label> <table ng-repeat="post in posts | orderby: sort | filter: searchkeyword"> <tr> <td> {{index(post)}} </td> <td> {{post.title}} </td> <td> {{post.author}} </td> <td> {{post.content}} </td> <td> {{post.date | date: "d/m/yyyy"}} </td> </tr> </table> what should do? thank you try this: controller $scope.posts = [ {title:'title one', author:'author one', content: 'content one'}, {title:'title two', author:'author two', content: 'cont...
Read more

sequelize.js - Sequelize: sort by enum cases -

i have model ( article ) field (the name type ) of type enum('source', 'translated') , return 1 article ordered type field. source articles should returned before translated articles. like: article.findone(order: [ { type: [ 'source', 'translated' ] } ]); unfortunately there appears no built-in solution sorting enums. instead have sort by case , couldn't find documentation on how sequelize. what conventional approach here? sorting case hard in sequelize, sort field (the second answer in linked post) should possible: order: sequelize.fn('field', sequelize.col('type'), 'source', 'translated') it's supported mysql far know though
Read more

user interface - how to replace an ongoing process of image capture from another process call over the same ImageLabel in python's GUI TKinter -

i trying use following code create interactive gui changes color-space(hsv, rbg, grayscale etc) on event of button click. display opencv video in tkinter using multiprocessing being new python having problems multiprocessing , attempts on making gui change it's color space on button clicks hangs entire system. on it's implementation highly appreciated. thankyou. below code: import cv2 pil import image,imagetk import tkinter tk import numpy np multiprocessing import process , queue def quit_it(root,process): root.destroy() process.terminate() def black_andwhite(root,process): process.terminate p=process(target=capture_image, args=(5,queue, )) p.start() root.after(0, func=lambda: update_all(root, image_label, queue)) def update_image(image_label, queue): frame = queue.get() = image.fromarray(frame) b = imagetk.photoimage(image=a) image_label.configure(image=b) image_label._image_cache = b root.update() def update_all(root...
Read more