I am working in Angular, I need to put an input that only accepts numeric characters. I have tried giving type="number", it is working very fine in Google Chrome, but in firefox, the input still accepting non-numeric characters. I have solved this by typescript/ Javascript but wondering if there is any more natural solution for it. Any help would be appreciated. Thanks in advance!
CodePudding user response:
In HTML you have to use keypress method
<input type="text" (keypress)="keyPressNumbers($event)" formControlName="yourformcontrolname" class="form-control" />
In typescript you have to use this method by
const keyDecimal : boolean = false;
keyPressNumbers(event) {
var perValue = this.yourformgroupname.get('yourvariablename').value;
var charCode = (event.which) ? event.which : event.keyCode;
if ((perValue.toString().indexOf(".") == -1) || (Number.isInteger(perValue)) || (perValue == null)) {
this.keyDecimal = false;
}
if (charCode< 45 || charCode> 57) {
event.preventDefault();
return false;
}
else {
if (charCode == 46 && !this.keyDecimal) {
this.keyDecimal = true;
}
else if ((charCode == 46 && this.keyDecimal) || (charCode == 47)) {
event.preventDefault();
return false;
}
return true;
}
}