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create a function from a string with javascript?

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Dung Nguyen Tien answered on December 15, 2020 Popularity 8/10 Helpfulness 1/10

answer create a function from a string with javascript?

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create a function from a string with javascript?

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I added a jsperf test for 4 different ways to create a function from string :

Using RegExp with Function class
var func = "function (a, b) { return a + b; }".parseFunction();

Using Function class with "return"
var func = new Function("return " + "function (a, b) { return a + b; }")();

Using official Function constructor
var func = new Function("a", "b", "return a + b;");

Using Eval
eval("var func = function (a, b) { return a + b; };");

Popularity 8/10 Helpfulness 1/10 Language javascript

Source: stackoverflow.com

Tags: function javascript string

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Contributed on Feb 07 2023

Dung Nguyen Tien

0 Answers Avg Quality 2/10

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javascript function from string

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var addition = Function("a", "b", "return a + b;");
alert(addition(5, 3)); // shows '8'

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

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Contributed on Dec 15 2020

Disgusted Dragonfly

0 Answers Avg Quality 2/10

Create JavaScript Strings

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//strings example
const name = 'Peter';
const name1 = "Jack";
const result = `The names are ${name} and ${name1}`;

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 21 2022

SAMER SAEID

0 Answers Avg Quality 2/10

JavaScript String() Function

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const a = 225; // number
const b = true; // boolean

//converting to string
const result1 = String(a);
const result2 = String(b);

console.log(result1); // "225"
console.log(result2); // "true"

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: function functio

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Contributed on May 21 2022

SAMER SAEID

0 Answers Avg Quality 2/10

Javascript Create Strings

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<!DOCTYPE html>
<html>
<body>

<h2>JavaScript Strings</h2>

<p>You can use quotes inside a string, as long as they don't match the quotes surrounding the string:</p>

<p id="demo"></p>

<script>
var answer1 = "It's alright";
var answer2 = "He is called 'Johnny'";
var answer3 = 'He is called "Johnny"';

document.getElementById("demo").innerHTML =
answer1 + "<br>" + 
answer2 + "<br>" + 
answer3;
</script>

</body>
</html>

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Jun 15 2022

SAMER SAEID

0 Answers Avg Quality 2/10

create a function from a string with javascript?

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