Is there a way to verify if a nested array contains two values that are larger than those in the preceding array within an array of arrays?

Question

Is there a way to verify if a nested array contains two values that are larger than those in the preceding array within an array of arrays?

I am currently working on this code, but I keep encountering an error. The main objective is to generate, by the end of the program, an array consisting of arrays that fulfill the condition of having both values greater than the values in the preceding array.

var data = [[68, 150], [70, 155], [55, 160]];
var result = [];

for(i=0; i<data.length; i++){
    
    var firstPosterior = data[i+1][0];
    var lastPosterior = data[i+1][1];
    var firstAnterior = data[i][0];
    var lastAnterior = data[i][1];
    
    if(
        firstPosterior > firstAnterior &&
        lastPosterior > lastAnterior
        ) {
        result.push(firstPosterior, firstPosterior);
    }
}

javascript

Answer 1

Answer №1

One common mistake to check for is a compilation error where the variable 'i' is not defined properly:

for(i=0; i<data.length; i++) // i is not defined. You should use let, var to declare it

To prevent this, it's essential to properly initialize variables like in this example:


var data = [[68, 150], [70, 155], [55, 160]];
var result = [];

for(let i=0; i<data.length -1; i++){
    
    var firstPosterior = data[i+1][0];
    var lastPosterior = data[i+1][1];
    var firstAnterior = data[i][0];
    var lastAnterior = data[i][1];
    
    if(
        firstPosterior > firstAnterior &&
        lastPosterior > lastAnterior
        ) {
        result.push(data[i+1]);
    }
}

The code snippet provided demonstrates how to avoid errors and correctly define variables.

Answer 2

One common mistake to check for is a compilation error where the variable 'i' is not defined properly:

for(i=0; i<data.length; i++) // i is not defined. You should use let, var to declare it

To prevent this, it's essential to properly initialize variables like in this example:


var data = [[68, 150], [70, 155], [55, 160]];
var result = [];

for(let i=0; i<data.length -1; i++){
    
    var firstPosterior = data[i+1][0];
    var lastPosterior = data[i+1][1];
    var firstAnterior = data[i][0];
    var lastAnterior = data[i][1];
    
    if(
        firstPosterior > firstAnterior &&
        lastPosterior > lastAnterior
        ) {
        result.push(data[i+1]);
    }
}

The code snippet provided demonstrates how to avoid errors and correctly define variables.

Is there a way to verify if a nested array contains two values that are larger than those in the preceding array within an array of arrays?

Answer №1

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