What is this weird code? [closed] - javascript

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I have stumbled across this code:
"".length
It should obviously return 0, but for some reason returns 1337. Is this some kind of trick i dont know?

The code is:
Open quote
Unicode Character 'ACTIVATE ARABIC FORM SHAPING' (U+206D) ×1337
Close quote
.length
Since the string is made of 1337 "invisible" characters, the length is 1337.

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Regex to convert Slack mention markup to custom string [closed]

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Closed 8 days ago.
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I am trying to convert sSlack mention markup to custom string so I can use it for better presentation.
Example input: #[user a name ](12345) (hi) #[user b name](67890)
Required output: <#12345> (hi) <#67890>
I have tried input.replaceAll(/#\[(.*?)\]\(.*?\)/g, "<#$1>"), but this prints the user name and not ID.

Reference-error : Console is not defined of java script i cmd [closed]

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Closed 4 years ago.
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What should i do ? it is showing reference-error
Don't use capital letter :) Object console defined with lowercase.
console.log('hello')
But I woted to close your question...
You can hit (Ctrl+Shift+i) to inspect the page and see it in the console.
console is a reserved word and it is case sensitive and it must be written in lowercase

What does "->" mean in javascript? [closed]

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What does the -> operator do in the .js code below?
_blm.mpU_onIdentified(function() {
console.log('find_program_result.js -> mpU_onIdentified');
_blm.mpU.people.set({
'findProgramsResultsHref': location.href
});
This isn't an operator - it's inside a string which is being logged. You can identify it by the quotes enclosing it:
console.log('find_program_result.js -> mpU_onIdentified');
// quotes --^------------------------------------------^

selecting all spaces in a text using regex in javascript [closed]

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Closed 7 years ago.
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'John David Alice Jack Jim'
I want to select all spaces in this text. There are multiple spaces between David and Alice...and between Jack and Jim.
\s+ doesn't work as you can see here
Solved: It turns out that, I have forgot to add 'g'.
Use: /\s+/g
/g (global) All matches.

How do I split a string, breaking at a symbol ':'? [closed]

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Closed 8 years ago.
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I have this string
24.733835, 121.34365500000001:AP-54184
i want to spilt the string by ':' , but why can't spilt the string
var newarray= '24.733835, 121.34365500000001:AP-54184'.spilt(/:/);
document.write(newarray[0]+","+newarray[1]+"<br>");
Is there anything wrong with my code ?
There is no function spilt() unless it's part of the Milk class. You want split(':')
You have a typo in your code, it should be .split(), not .spilt()...

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