Need some Javascript help

[bigthicc]

If anyone is good at javacript, can they explain what this does to me:

if (myString.indexOf('.') === -1) {
        ...
      }

'myString' is just a variable.

 

[Khafra]

if "." is not found in a string or array, the code in the if statement will run.

let myString = 'this code will work';
// let myArray = ['this', 'code', 'won\'t', 'run', '.'];

if (myString.indexOf('.') == -1){
    console.log('I run');
    return;
}

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/indexOf
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf

 

[bigthicc]

if "." is not found in a string or array, the code in the if statement will run.

let myString = 'this code will work';
// let myArray = ['this', 'code', 'won\'t', 'run', '.'];

if (myString.indexOf('.') == -1){
    console.log('I run');
    return;
}

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/indexOf
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf

Ohhh.. I see
TYSM