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Author: admin@master

MD5 hash of a file using javascript

I have to upload a file from the front end and calculate the md5 hash of the file. I tried to use crypto.js to generate the md5 but for images it is giving me wrong md5. I saw a website called onlinemd5.com and it is exactly what I need. Can anyone help me how to calculate the md5 hash of

adjust console.log behaviour of custom object

is there any way to influence what console.log gives out custom objects? I tried to overwrite the customObject.prototype.toString method, that did not work though. Any ideas? Answer In node.js, console.log calls util.inspect on each argument without a formatting placeholder. So if you define an inspect(depth,…

HttpPostedfileBase is null using jQuery Ajax

I have problem with uploading file In Asp.net Mvc. First of all I should use Ajax to pass the upload file value. In javascript I have model that I fill it, When I check it with debugger is correctly fill the object, but when I send this model to server (Controller ) The httpPostedfileBase value is Always null…

Mongoose auto increment

According to this mongodb article it is possible to auto increment a field and I would like the use the counters collection way. The problem with that example is that I don’t have thousands of people typing the data in the database using the mongo console. Instead I am trying to use mongoose. So my sche…

Understanding unique keys for array children in React.js

I’m building a React component that accepts a JSON data source and creates a sortable table. Each of the dynamic data rows has a unique key assigned to it but I’m still getting an error of: Each child in an array should have a unique “key” prop. Check the render method of TableComponen…

Check if there’s some text inside an element

I am creating an If…Else statement and need to check if the element has innerHTML / textContent. Like this: So, how do I do that using Javascript? Please, help! UPD! I have dynamically changing content, and seems not working after I put some text inside my < span >. I mean it still thinks the <…

Sorting multiple arrays based on one

I have 2 arrays: the first one contains a list of score numbers, and the second contains a list of countries with the same number of elements. Each country is linked with its proper score during the input. So, let’s say the input arrays are the following: I need the following output: A possible solution…

Set URL to load iframe in a Django template

I want to load an iframe into a Django template. The template is getting loaded correctly, but in place of the iframe, the template itself is getting embedded inside the parent template. The code relevant is given below: testgame.html is a file located in the same directory as this HTML template, but it doesn…