Having trouble trimming a text input and ending up with duplicate values https://i.sstatic.net/PkrxB.png
New to Angular, seeking help in finding a solution View Code on StackBlitz
Having trouble trimming a text input and ending up with duplicate values https://i.sstatic.net/PkrxB.png
New to Angular, seeking help in finding a solution View Code on StackBlitz
preventDefault() Use Case:
The preventDefault() method stops the event from happening if it can be canceled, preventing the default action associated with the event.
An issue arose when attempting to halt the pasting behavior.
if (!Number(event)) {
e.preventDefault();
}
Situations:
Scenario 1: Pasted content is not numeric
Scenario 2: Pasted content is numeric
<input> element.I believe your goal was to:
Prevent the default paste behavior.
Allow only numbers to be pasted. Exiting the function if the value is not a number.
if (!Number(event)) return;
The complete "paste" listener code should appear as follows:
@HostListener('paste', ['$event']) onPaste(e: ClipboardEvent) {
e.preventDefault();
let event = e.clipboardData.getData('text');
let reg = new RegExp(/\s/g);
//allow paste only number values
if (!Number(event)) return;
if (reg.test(event)) {
console.log('Dir "' + event + '"');
this.eleRef.nativeElement.value = event.trim();
}
}
Live Demo @ ExampleLink
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