Predict the output of the following JavaScript code.
<script type="text/javascript"> var a="LearnJavascript"; var x=a.lastIndexOf("a"); document.write(x); </script>
<script type="text/javascript"> var a="LearnJavascript"; var x=a.lastIndexOf("a"); document.write(x); </script>
Anonymous Quiz
41%
8
12%
0
5%
9
42%
Error
JavaScript Tip 💡
Instead of using find(), or manually searching a list for an occurrence, use the array method some() instead.
It’s built for exactly that purpose.
#Javascripttip
Instead of using find(), or manually searching a list for an occurrence, use the array method some() instead.
It’s built for exactly that purpose.
#Javascripttip
A long list of JavaScript questions that can help you in your next interview 🚀
🖇️ https://github.com/lydiahallie/javascript-questions
🖇️ https://github.com/lydiahallie/javascript-questions
Predict the output of the following JavaScript code.
<script type="text/javascript" language="javascript"> var a = "LearnJavascript"; var result = a.substring(4, 5); document.write(result); </script>
<script type="text/javascript" language="javascript"> var a = "LearnJavascript"; var result = a.substring(4, 5); document.write(result); </script>
Anonymous Quiz
50%
nJ
10%
pt
30%
n
10%
r
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Sketch2Code is a solution that uses AI to transform a handwritten user interface design from a picture to valid HTML markup code.
This is an open-source project by Microsoft and can be found at
https://github.com/Microsoft/ailab/tree/master/Sketch2Code
This is an open-source project by Microsoft and can be found at
https://github.com/Microsoft/ailab/tree/master/Sketch2Code
Forwarded from Programming World👨💻
7 Awesome APIs for All Frontend Developers
https://javascript.plainenglish.io/7-awesome-apis-for-all-frontend-developers-a06c1057661
#api #public
https://javascript.plainenglish.io/7-awesome-apis-for-all-frontend-developers-a06c1057661
#api #public
JavaScript Tip 💡
Did you know that you can cancel a fetch request using an AbortController?
A common use-case is React:
If a component unmounts while a fetch call is awaited, it can be useful to abort the call.
#Javascripttip #Reacttip
Did you know that you can cancel a fetch request using an AbortController?
A common use-case is React:
If a component unmounts while a fetch call is awaited, it can be useful to abort the call.
#Javascripttip #Reacttip
<script type="text/javascript" language="javascript">
var x=5; var y=6; var res=eval("x*y"); document.write(res); </script>
var x=5; var y=6; var res=eval("x*y"); document.write(res); </script>
Anonymous Quiz
19%
“30”
45%
30
17%
5*6
19%
"5*6"
What is the syntax for creating a function in JavaScript named as Learnjsfunc?
Anonymous Quiz
27%
function = Learnjsfunc()
68%
function Learnjsfunc()
1%
function := Learnjsfunc()
4%
function : Learnjsfunc()
What is the correct syntax for adding comments in JavaScript?
Anonymous Quiz
22%
<!–This is a comment–>
69%
//This is a comment
1%
–This is a comment
8%
**This is a comment**
What will be the output of the following code?
<script> document.write(typeof(24.49)); </script>
<script> document.write(typeof(24.49)); </script>
Anonymous Quiz
52%
float
27%
number
9%
integer
13%
double
Here are some good questions to ask at the end of the interview, extracted from various sources.
#interview #questions #question #answer #answers #book #handbook #list #awesome
https://github.com/yangshun/tech-interview-handbook/blob/master/contents/questions-to-ask.md
#interview #questions #question #answer #answers #book #handbook #list #awesome
https://github.com/yangshun/tech-interview-handbook/blob/master/contents/questions-to-ask.md
Alternative to html2canvas in Vue JS with other libraries
https://javascript.plainenglish.io/a-better-alternative-to-html2canvas-in-vuejs-3-e0686755d56e
---
#vue #html2canvas
https://javascript.plainenglish.io/a-better-alternative-to-html2canvas-in-vuejs-3-e0686755d56e
---
#vue #html2canvas
What is the method in JavaScript used to remove the whitespace at the beginning and end of any string ?
Final Results
19%
strip()
69%
trim()
7%
stripped()
6%
trimmed()
Which of the following is an advantage of using JavaScript?
Final Results
21%
Increased interactivity.
5%
Less server interaction.
7%
Immediate feedback from the users.
67%
All of the above.
JS Performance Tips: How to Speed up JavaScript Load Time
#js #performance
https://brainhub.eu/library/js-performance-tips/
#js #performance
https://brainhub.eu/library/js-performance-tips/