WebFeb 28, 2024 · data.map is not a function react. after few hours of trying to correct the code i'm coming here for help. the idea is to search for a character and show few details that i choose, and right now i simply can't get around this issue where i try to iterate on the death array and gather some information from there : I'm working with this API ... WebJun 15, 2024 · Separately: You're calling map and within the map callback, you're calling setState and not returning any value, so you're mapping every entry to undefined; you're also not using the return value of map at all (you're returning it out of then, but nothing uses the resulting promise, so it goes unused).You almost certainly don't want to repeatedly …
d3.js Error data.map is not a function - Stack Overflow
WebMay 31, 2024 · 1. To map the json object ... data must be an object... Not a string. It was received as a string... So you just have to parse it to an object. Here, it is chained with the .map () method: JSON.parse (data).map (addElement); But you could have done (same thing): var dataObj = JSON.parse (data); dataObj.map (addElement); WebJun 30, 2016 · Render calls this.props.data right away, your data might not have arrive yet, so you need to check if data is ready, by doing this this.props.data && this.props.data.map.. var commentNodes = this.props.data && this.props.data.map(function(comment) { return ( {comment.text} ); }); plants in the poison garden
ReactJS: this.props.data.map is not a function - Stack Overflow
WebFor more generic advice on debugging this kind of problem MDN have a good article TypeError: "x" is not a function: It was attempted to call a value like a function, but the value is not actually a function. Some code expects you to provide a function, but that didn't happen. Maybe there is a typo in the function name? WebJun 13, 2024 · There's a split second where { data }, which is being destructured directly, is undefined, so you're gonna have to await the promise for you to destructure {data}. If you are importing data synchronously then I'm stumped as to what we can do here. WebOct 29, 2024 · I've updated the post to use the change in state you suggested, strangely I get the same error, this times it says that TypeError: this.state.profiles.map is not a function no. When I remove that line and just dump this.state.profiles to the console, I see an array. Is this.state.profiles not initialized when it's called perhaps? plants in the rocky mountains