Currently working on learning React and trying to develop my own mini-app. I'm basing it very closely on the project showcased in this video tutorial.
I've run into an issue with the comment deletion functionality in my app. Despite searching various resources for similar problems, it seems like the error lies within my code (but I can't seem to pinpoint it). I've gone through the Babel file multiple times, but haven't been able to identify any mistakes.
Here are the specifics of the problem: When a new comment is created, users have the option to save or delete it using buttons. If only one comment exists and you click "Save," the delete function works correctly. However, if there are multiple comments and you try to delete the first one, it ends up deleting the next comment instead.
Hopefully that explanation makes some sense.
Can anyone help me spot the error? The logic behind the delete function can be found on line 71 under the name "deleteComment."
Check out the full code on CodePen.
var CommentSection = React.createClass({
getInitialState: function() {
return {editing: true}
},
edit: function() {
this.setState({editing: true});
},
save: function() {
this.props.updateCommentText(this.refs.newText.value, this.props.index);
this.setState({editing: false});
},
delete: function() {
this.props.deleteFromCard(this.props.index);
},
renderNormal: function() {
return (
<div className="comment-section">
<div className="comment-content">{this.props.children}</div>
<a className="-edit" onClick={this.edit}>Edit</a>
</div>
);
},
renderEdit: function() {
return (
<div className="comment-section">
<textarea ref="newText" defaultValue={this.props.children}></textarea>
<button className="-save" onClick={this.save}>Save</button>
<button className="-delete" onClick={this.delete}>Delete</button>
</div>
);
},
render: function() {
if(this.state.editing) {
return this.renderEdit();
} else {
return this.renderNormal();
}
}
});
var PhotoSection = React.createClass({
render: function() {
return <div className="photo-section"></div>;
}
});
var Desk = React.createClass({
getInitialState: function() {
return {
comments: []
}
},
addComment: function(text) {
var arr = this.state.comments;
arr.push(text);
this.setState({comments: arr})
},
deleteComment: function(i) {
console.log(i);
var arr = this.state.comments;
arr.splice(i, 1);
this.setState({comments: arr})
},
updateComment: function(newText, i) {
var arr = this.state.comments;
arr[i] = newText;
this.setState({comments: arr})
},
commentFormat: function(text, i) {
return (
<CommentSection key={i} index={i} updateCommentText={this.updateComment} deleteFromCard={this.deleteComment}>
{text}
</CommentSection>
);
},
render: function() {
return (
<div className="desk">
<div className="card">
<PhotoSection />
<div className="comment-section-backing">
<button className="-comment" onClick={this.addComment.bind(null, "")}>Leave a Comment</button>
{this.state.comments.map(this.commentFormat)}
</div>
</div>
</div>
);
}
});
ReactDOM.render(<Desk />, document.getElementById('app'));