A guide to filtering an array of data within an if statement using TypeScript

How can I filter an array of objects based on certain conditions when I am unable to access the array data within the if condition? Any suggestions on how to approach this issue?

data =[
    {
        color: "red",
        value: "#f00"
    },
    {
        color: "green",
        value: "#0f0"
    },
    {
        color: "blue",
        value: "#00f"
    },
    {
        color: "cyan",
        value: "#0ff"
    },
    {
        color: "magenta",
        value: "#f0f"
    },
    {
        color: "black",
        value: "#000"
    }
]


selection: string = "";

onClick($event: any) {
      this.selection = $event.value
    }


filterArray(): void {
    let myData = this.data
    if (this.selection != null) {
      let filteredData = myData.filter(x => x.color == "black" && x.value == "#000");
      console.log(filteredData) // this is not logging
    }
    else {
      console.log(myData) this also is not logging
    }
  }

Answer №1

Remember to always enclose string values in quotes.

When creating your filter callback, ensure the following:

x.value == #000

// Correction:
x.value == "#000"

Playground Link

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