How to validate only numbers in a text field?

@mizaeltovarreyes yes. close the parenthesis: if(isNaN(value) ) {

That’s right, I know i can, but I would like to validate it using javascript code

@mizaeltovarreyes , $w.onReady(() => { $w("#input1").onChange(event => { if(isNaN($w("#input1").value)){ //do if it's not a number } else { //do if number } }) })

and of course, if you want you can put it in custom validation: $w("#input1").onCustomValidation( (value, reject) => { if(isNaN(value)) { reject(`"${value}" is not a number`); } } );

@jonatandor35 Thank you very much, but it throws me error, can you tell me what is wrong with my code? [image] export function input17_change(event) { $w("#input17").onCustomValidation( (value, reject) => { **if** (isNaN(value) { reject(`"${value}" is not a number`); } } ); }

@jonatandor35 Many thanks!! export function input17_change(event) { $w("#input17").onCustomValidation( (value, reject) => { if(isNaN(value)) {reject(`"${value}" is not a number`); } }); }

Validate only numbers in a text field (I would like to validate it using javascript code)

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anhelinak November 4, 2019, 2:42pm 2

If you are referring to a text user input, then you’ll need to change a type of your input from Text to Number in the settings:

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Validate only numbers in a text field (I would like to validate it using javascript code)

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