Issue: Unable to access property 'push' of undefined in [null].
class B implements OnInit {
messageArr: string[];
ngOnInit() {
for(let i=0; i<5; i++) {
this.messageArr.push("bbb");
}
}
}
Issue: Unable to access property 'push' of undefined in [null].
class B implements OnInit {
messageArr: string[];
ngOnInit() {
for(let i=0; i<5; i++) {
this.messageArr.push("bbb");
}
}
}
Initialization of the array is required:
stringArr = [];
When I encountered this scenario, the syntax was slightly different from the solution provided since I was utilizing a complete array type.
stringArr: Array<string> = [];
Alternatively, the following approach would also be valid:
stringArr: string[] = [];
These are just two ways to define a new array.
class A implements OnInit {
stringArr: string[]=[];
ngOnInit() {
for(let i=0; i<4; i++) {
this.stringArr.push("aaa");
}
}
}
In this snippet, the variable stringArr is declared as a string instead of an array of strings. It should be properly defined as an empty array [].
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